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Homonyms

IRMNG homonym list - genus level - Initial letter = "B" (1488)

Please note, this is a provisional homonyms list from IRMNG on 2026-04-14, and is subject to change. It may include nomina nuda, rejected and otherwise non-current names, plus some published misspellings, in addition to homonyms that have been validly published. A small proportion of duplicate entries awaiting rationalisation may also be included.

Click on any genus name for additional details, as currently available.

Babaina
 Babaina Odhner in Franc, 1968 accepted as Thorunna Bergh, 1878 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Chromodorididae (Family)
 Babaina Roller, 1972 accepted as Babakina Roller, 1973 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Flabellinidae (Family)

Babesia
     Babesia Starcovivi, 1893 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Piroplasmida (Order) > Babesiidae (Family)
 Babesia accepted as Aegyptianella Carpano, 1929 (Approved Lists, 1980) · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Alphaproteobacteria (Class) > Rickettsiales (Order) > Anaplasmataceae (Family)

Babia
     Babia Lacordaire, 1848 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Babia Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Babina
 Babina † accepted as Babinia Racheboeuf & Branisa, 1985 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Strophochonetidae (Family)
     Babina Thompson, 1912 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Ranidae (Family)
     Babina Boucek, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)

Babirussa
 Babirussa Rafinesque, 1815 accepted as Babyrousa Perry, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Suidae (Family)
 Babirussa Frisch, 1775 accepted as Babyrousa Perry, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Suidae (Family)

Baburia
     Baburia Koçak, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Baburia Hedqvist, 2004 accepted as Acmopolynema Ogloblin, 1946 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Mymaridae (Family)

Babyrussa
 Babyrussa Burnett, 1830 accepted as Babyrousa Perry, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Suidae (Family)
 Babyrussa Brookes, 1828 accepted as Babyrousa Perry, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Suidae (Family)

Bacalia
 Bacalia H. Adams & A. Adams, 1854 accepted as Littorina Férussac, 1822 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Littorinidae (Family)
     Bacalia Gray, 1840 accepted as Bacalia Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Littorinidae (Family)

Baccigeroides
     Baccigeroides Dutta in Ghosh, 1995 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Faustulidae (Family)
 Baccigeroides Manna & Dutta, 1996 accepted as Baccigeroides Dutta in Ghosh, 1995 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Faustulidae (Family)

Bacha
     Bacha Jameson, 1840 accepted as Bacha Jameson, 1840 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Bacha Schiner, 1861 accepted as Baccha Fabricius, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Bachia
     Bachia Förster, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Bachia Gray, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gymnophthalmidae (Family)

Bachiana
 Bachiana Girault, 1940 accepted as Arzonella Pagliano & Scaramozzino, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
     Bachiana Strand, 1928 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Bachmannia
 Bachmannia Nani in Szidat & Nani, 1951 accepted as Odontesthes Evermann & Kendall, 1906 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Atherinopsidae (Family)
 Bachmannia Zschacke, 1934 accepted as Verrucaria H.A. Schrader, 1794 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Verrucariales (Order) > Verrucariaceae (Family)
     Bachmannia Dolgopol de Saez, 1941 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Siluriformes (awaiting allocation) (Family)
     Bachmannia Pax in Pax & Gilg, 1897 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)

Bacillaria
 Bacillaria Montagne, 1840 accepted as Camillea E.M. Fries, 1849 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Xylariaceae (Family)
     Bacillaria J.F. Gmelin, 1791 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Bacillariophyceae (Class) > Bacillariales (Order) > Bacillariaceae (Family)
     Bacillaria Oken, 1815 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Bacillidium
     Bacillidium Janda, 1928 · Fungi (Kingdom) > Rozellomycota (Phylum) > Microsporidea (Class) > Neopereziida (Order) > Neopereziidae (Family)
 Bacillidium Uvarov, 1939 accepted as Heteronemia Gray, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Heteronemiidae (Family)

Bacillopsis
     Bacillopsis Normand, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Bacillopsis Petschenko, 1908 · Fungi (Kingdom) > Ascomycota (Phylum) > Saccharomycetes (Class) > Saccharomycetales (Order) > Saccharomycetales incertae sedis (Family)

Bacillus
     Bacillus Cohn, 1872 (Approved Lists, 1980) · Bacteria (Kingdom) > Bacillota (Phylum) > Bacilli (Class) > Caryophanales (Order) > Bacillaceae (Family)
     Bacillus Berthold, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Bacillidae (Family)

Bacis
     Bacis Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Bacis Hope, 1841 accepted as Bacis Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)

Baclea
     Baclea E.P.N. Fournier in Baillon, 1877 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Baclea E.L. Greene, 1893 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)

Baconia
     Baconia Lewis, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
 Baconia A.P. de Candolle, 1807 accepted as Pavetta Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Bacteria
     Bacteria Woese, Kandler & Wheelis, 2024 · Bacteria (Kingdom) > (Phylum) > (Class) > (Order) > (Family)
 Bacteria Agassiz, 1846 accepted as Bacteria Agassiz, 1846 · Animalia (Kingdom) > Animalia (awaiting allocation) (Phylum) > Animalia (awaiting allocation) (Class) > Animalia (awaiting allocation) (Order) > Animalia (awaiting allocation) (Family)
     Bacteria Berthold, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Diapheromeridae (Family)

Bacteridium
     Bacteridium Thiele, 1929 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)
 Bacteridium Schröter, 1872 accepted as Micrococcus Cohn, 1872 (Approved Lists, 1980) · Bacteria (Kingdom) > Actinomycetota (Phylum) > Actinomycetes (Class) > Micrococcales (Order) > Micrococcaceae (Family)

Bacterium
     Bacterium Ehrenberg, 1831 accepted as Bacterium Ehrenberg, 1831 (nomen nudum)· Bacteria (Kingdom) > Bacteria incertae sedis (Phylum) > (Class) > (Order) > (Family)
 Bacterium accepted as Halobacterium Elazari-Volcani, 1957 (Approved Lists, 1980) · Archaea (Kingdom) > Methanobacteriota (Phylum) > Halobacteria (Class) > Halobacteriales (Order) > Halobacteriaceae (Family)

Bactria
     Bactria Meigen, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Bactria O.V. Yurtseva & E.V. Mavrodiev, 2016 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)

Bactridiopsis
 Bactridiopsis Hennings, 1904 accepted as Coccospora Wallroth, 1833 · Fungi (Kingdom) > Ascomycota (Phylum) > (Class) > (Order) > (Family)
 Bactridiopsis Gonz. Fragoso & Ciferri, 1927 accepted as Phillipsiella M.C. Cooke, 1878 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Mycosphaerellales (Order) > Phillipsiellaceae (Family)

Bactridium
     Bactridium Kunze, 1817 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Bactridium Leconte, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Monotomidae (Family)
     Bactridium Reuss, 1848 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Lepraliomorpha (Order) > Escharinidae (Family)
 Bactridium de Saussure, 1868 accepted as Heteronemia Gray, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Heteronemiidae (Family)

Bactrites
     Bactrites Sandberger, 1842 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Anarcestida (Order) > Bactritidae (Family)
     Bactrites E.W. Berry, 1924 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Bactrocera
     Bactrocera Macquart, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Bactrocera Guérin-Méneville, 1838 accepted as Bactrocera Macquart, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Bactrophora
 Bactrophora J.G. Agardh, 1882 accepted as Cladosiphon Kützing, 1843 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Phaeophyceae (Class) > Ectocarpales (Order) > Chordariaceae (Family)
     Bactrophora Westwood, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)

Bactrophycus
 Bactrophycus J.G. Agardh accepted as Sargassum C.A. Agardh, 1820 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Phaeophyceae (Class) > Fucales (Order) > Sargassaceae (Family)
     Bactrophycus Y. Zhang, 1985 † accepted as Archaeoellipsoides R.J. Horodyski & J.A. Donaldson, 1980 † (junior homonym)· Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Nostocaceae (Family)

Bactropus
     Bactropus Barrande in Bigsby, 1868 † accepted as Bactropus Barrande in Bigsby, 1868 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Bactropus Barrande, 1872 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Bactropus Cook & Collins, 1896 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Cleidogonidae (Family)
 Bactropus Gravier, 1912 accepted as Serpulidicoloides Boxshall & Halsey, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Serpulidicolidae (Family)

Bactryischion
 Bactryischion Ashmead, 1904 accepted as Podagrion Spinola, 1811 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Torymidae (Family)
 Bactryischion Dalla Torre, 1898 accepted as Podagrion Spinola, 1811 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Torymidae (Family)

Bacularia
 Bacularia F. von Mueller, 1878 accepted as Linospadix H. Wendland in H. Wendland & Drude, 1875 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
 Bacularia A. Borzì, 1905 accepted as Bacillosiphon Copeland, 1936 · Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Synechococcales (Order) > Synechococcaceae (Family)

Baculella
 Baculella Conil & Dreesen in Dreesen et al., 1985 † accepted as Dreesenulella Vachard, 1991 † · Biota incertae sedis (Kingdom) > (Phylum) > Algospongia (Class) > Moravamminales (Order) > Issinellaceae (Family)
     Baculella Tendal & Hessler, 1977 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Baculellidae (Family)

Baculites
     Baculites Lamarck, 1799 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Baculitidae (Family)
     Baculites J. Gruss, 1928 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Bacillariophyceae (Class) > (Order) > Bacillariophyceae incertae sedis (Family)

Badamia
     Badamia Moore, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
 Badamia J. Gaertner, 1790 accepted as Terminalia Linnaeus, 1767 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Combretaceae (Family)

Badenia
     Badenia Enay, 1959 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
 Badenia Finlay, 1930 † accepted as Onoba H. Adams & A. Adams, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)

Badister
     Badister Clairville, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Badister Schellenberg, 1806 accepted as Badister Clairville, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Badistes
 Badistes Agassiz, 1846 accepted as Badister Clairville, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Badistes Gould, 1862 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)

Baecula
     Baecula Walker, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Baecula Stål, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Baeomorpha
     Baeomorpha Brues in Carpenter, 1937 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Rotoitidae (Family)
 Baeomorpha Turner, 1940 accepted as Hobapromea Watson in Watson, Fletcher & Nye, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Baeoneura
 Baeoneura Förster, 1856 accepted as Macroteleia Westwood, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)
     Baeoneura Sinlchenkova in Sharov & Sinichenkova, 1977 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Palaeodictyoptera (Order) > Spilapteridae (Family)

Baeorix
 Baeorix Roewer, 1923 accepted as Baeorix Roewer, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Baeorix Thorell, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Assamiidae (Family)

Baeoscelis
     Baeoscelis Spinola, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Phengodidae (Family)
     Baeoscelis Heine, 1860 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Baeosomus
     Baeosomus Broun, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Baeosomus Thomson, 1891 accepted as Baeosemus Förster, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Baeria
 Baeria F.E.L. Fischer & C.A. Meyer, 1836 accepted as Lasthenia Cassini, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Baeria Moghe, 1933 accepted as Mogheia López-Neyra, 1944 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Paruterinidae (Family)
 Baeria Miklucho-Maclay, 1870 accepted as Leuconia Grant, 1833 · Animalia (Kingdom) > Porifera (Phylum) > Calcarea (Class) > Baerida (Order) > Baeriidae (Family)

Baeriella
 Baeriella Fuhrmann, 1932 accepted as Progamotaenia Nybelin, 1918 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)
     Baeriella Simon, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Bafutia
 Bafutia Dajoz, 1978 accepted as Philothermus Aubé, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerylonidae (Family)
 Bafutia C.D. Adams, 1962 accepted as Emilia Cassini, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Baga
     Baga Navás, 1930 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)
     Baga Sukacheva, 1992 † accepted as Sukatshevabaga Tian & Zhang, 2023 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Philopotamidae (Family)

Bagrasia
     Bagrasia Nalivkin, 1960 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Gigantoproductidae (Family)
     Bagrasia Sarycheva, 1960 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Strophomenatida (Order) > Strophomenida (awaiting allocation) (Family)

Bagre
 Bagre Cuvier, 1816 accepted as Bagre Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ariidae (Family)
 Bagre Oken, 1817 accepted as Bagre Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ariidae (Family)
     Bagre Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ariidae (Family)
 Bagre Catesby, 1771 accepted as · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ictaluridae (Family)

Bagrus
 Bagrus Fleming, 1822 accepted as Bagre Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ariidae (Family)
     Bagrus Rafinesque, 1815 accepted as Bagrus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Bagrus Bosc, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Bagridae (Family)
     Bagrus Müller & Troschel, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Bagridae (Family)

Bahamia
     Bahamia Sabrosky, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asteiidae (Family)
 Bahamia N.L. Britton & J.N. Rose, 1928 accepted as Acacia P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Bahiacaris
     Bahiacaris Schweitzer, Santana, Pinheiro & Feldmann, 2023 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Palaemonidae (Family)
     Bahiacaris Schweitzer, Santana, Pinheiro & Feldmann, 2019 † accepted as Bahiacaris Schweitzer, Santana, Pinheiro & Feldmann, 2023 † (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Palaemonidae (Family)

Baicalia
     Baicalia I.N. Krylov, 1962 † · Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Acrescentida (Order) > Tungussidae (Family)
     Baicalia Martens, 1876 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Amnicolidae (Family)

Baikalia
 Baikalia Dall, 1877 † accepted as Baicalia Martens, 1876 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Amnicolidae (Family)
     Baikalia Surcouf, 1921 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)
     Baikalia Crosse & Fischer, 1879 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Baikalia L.N. Bukhtiyarova & G.V. Pomazkina, 2013 · Chromista (Kingdom) > Heterokontophyta (Phylum) > (Class) > Bacillariophytina_(awaiting_allocation) (Order) > (Family)

Baileya
 Baileya Averintsev in Schouteden, 1906 accepted as Maroltia Haman, 1988 · Chromista (Kingdom) > Cercozoa (Phylum) > Thecofilosea (Class) > Tectofilosida (Order) > Pseudodifflugiidae (Family)
     Baileya Grote, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nolidae (Family)
 Baileya T. Marsson, 1901 accepted as Tryblionella W. Smith, 1853 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Bacillariophyceae (Class) > Surirellales (Order) > Surirellaceae (Family)
     Baileya W.H. Harvey & A. Gray ex J. Torrey in W.H. Emory, 1848 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Baileya Kützing, 1857 accepted as Tuomeya Harvey, 1858 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Batrachospermales (Order) > Batrachospermaceae (Family)

Baileyella
 Baileyella Özdikmen, 2009 † accepted as Durotrigia D. Bailey, 1987 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)
     Baileyella Wylensek et al., 2021 · Bacteria (Kingdom) > Bacillota (Phylum) > Clostridia (Class) > Eubacteriales (Order) > Anaerovoracaceae (Family)

Bainbridgia
     Bainbridgia Ball, 1933 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Tabulata (Order) > Tabulata (awaiting allocation) (Family)
     Bainbridgia Ball & Grove, 1940 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Bainopus
     Bainopus Gray in J.L.G. Gray, 1846 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bainopus Hodgson, 1844 accepted as Bainopus Hodgson, 1844 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Bairdiacratia
     Bairdiacratia Crasquin in Crasquin, S. et al., 2008 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Bairdiidae (Family)
     Bairdiacratia Jiang, 1983 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Bairdiidae (Family)

Bairdiella
     Bairdiella Gill, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sciaenidae (Family)
     Bairdiella Egorova, 1960 † accepted as Ideluralia Antonietto & Brandão, 2023 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Bairdiidae (Family)

Bajulus
 Bajulus Lendenfeld, 1889 accepted as Bajalus Lendenfeld, 1885 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Verongiida (Order) > Ianthellidae (Family)
 Bajulus Gistl, 1848 accepted as Bajulus Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Bakerella
     Bakerella Wagner, 1930 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Siphonaptera (awaiting allocation) (Family)
 Bakerella Womersley, 1928 accepted as Apteryskenoma Paclt, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Zygentoma (Order) > Lepismatidae (Family)
     Bakerella Crawford, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Delphacidae (Family)
     Bakerella Van Tieghem, 1895 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)
 Bakerella Bolivar, 1914 accepted as Luzoniella Karny, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Bakeria
 Bakeria B.C. Seemann, 1864 accepted as Schefflera J.R. Forster & J.G.A. Forster, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)
     Bakeria Moravec & Sey, 1986 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Molineidae (Family)
     Bakeria (M. Gandoger) M. Gandoger, 1886 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
     Bakeria Tutt, 1907 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Bakeria Kieffer, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Bakeria E.F. André, 1889 accepted as Bakerantha L.B. Smith, 1934 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)

Bakeriella
     Bakeriella Poppius, 1915 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
     Bakeriella Kieffer, 1910 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Bakeriella Pierre ex Dubard, 1911 accepted as Synsepalum (Alph. de Candolle) W.F. Daniell, 1852 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
     Bakeriella Chakrabarti & Mondal, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Eriophyidae (Family)

Bakerina
 Bakerina Bory de St Vincent, 1827 accepted as Simulium Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Simuliidae (Family)
     Bakerina Chaudhri, 1971 † · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tetranychidae (Family)

Bakeriola
 Bakeriola Evans, 1939 accepted as Bakeriana Evans, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Bakeriola Bergroth, 1920 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)

Balachowskya
     Balachowskya Peyerimhoff, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Balachowskya Gómez-Menor, 1956 accepted as Gomezmenoricoccus Kozar & Walter, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pseudococcidae (Family)

Balanda
     Balanda Dworakowska, 1979 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Balanda Oshanin, 1891 accepted as Balanda Oshanin, 1891 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Balanephagus
 Balanephagus Schönherr, 1843 accepted as Petalochilus Schönherr, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Balanephagus Morris, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Balanites
 Balanites Gesner, 1758 † accepted as · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Balanites Schulze, 1886 accepted as Caulophacus Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)
     Balanites Delile, 1813-1814 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zygophyllales (Order) > Zygophyllaceae (Family)

Balanocephalus
 Balanocephalus Kennel, 1891 accepted as Baseodiscus Diesing, 1850 · Animalia (Kingdom) > Nemertea (Phylum) > Pilidiophora (Class) > Heteronemertea (Order) > Valenciniidae (Family)
 Balanocephalus Harmer, 1899 accepted as Protoglossus van der Horst in Bronn, 1935 · Animalia (Kingdom) > Hemichordata (Phylum) > Enteropneusta (Class) > (Order) > Harrimaniidae (Family)

Balanocochlis
 Balanocochlis Cossmann, 1893 † accepted as Pasitheola Cossmann, 1896 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Balanocochlis P. Fischer, 1885 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Thiaridae (Family)

Balanocrinites
     Balanocrinites Troost, 1849 † accepted as Lampterocrinus Roemer, 1860 † (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Diplobathrida (Order) > Lampterocrinidae (Family)
     Balanocrinites Troost in Wood, 1909 † accepted as Lampterocrinus Roemer, 1860 † (junior subjective synonym)· Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Diplobathrida (Order) > Lampterocrinidae (Family)

Balanocrinus
 Balanocrinus Hall, 1861 † accepted as Lampterocrinus Roemer, 1860 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Diplobathrida (Order) > Lampterocrinidae (Family)
     Balanocrinus Agassiz in Desor, 1847 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Isocrinida (Order) > Isocrinidae (Family)

Balanophorus
 Balanophorus Braun in Bronn, 1894 accepted as Balanophorus Braun in Bronn, 1894 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)
     Balanophorus MacLeay, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)

Balantidiopsis
     Balantidiopsis Bütschli in Bronn, 1889 (uncertain)· Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Hypotrichida (awaiting allocation) (Family)
 Balantidiopsis Penard, 1922 accepted as Balantidioides Penard in Kahl, 1930 · Chromista (Kingdom) > Ciliophora (Phylum) > Heterotrichea (Class) > Heterotrichida (Order) > Climacostomidae (Family)

Balantium
 Balantium Kaulfuss, 1824 accepted as Dicksonia L'Héritier, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Cyatheales (Order) > Dicksoniaceae (Family)
 Balantium Desvaux ex W. Hamilton, 1825 accepted as Parinari Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Chrysobalanaceae (Family)
 Balantium Children, 1823 accepted as Clio Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Thecosomata (Order) > Cliidae (Family)

Balanus
 Balanus Thomson, 1868 accepted as Curculio Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Balanus Costa, 1778 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Sessilia (Order) > Balanidae (Family)

Balbiania
 Balbiania Stiles, 1893 accepted as Sarcocystis Lankester, 1882 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Eimeriida (Order) > Sarcocystidae (Family)
     Balbiania Sirodot, 1876 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Balbianiales (Order) > Balbianiaceae (Family)
     Balbiania Blanchard, 1885 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Balbisia
 Balbisia A.P. de Candolle, 1833 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Balbisia Cavanilles, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Geraniales (Order) > Francoaceae (Family)
 Balbisia Willdenow, 1803 accepted as Balbisia Willdenow, 1803 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Balboa
 Balboa Hebard, 1927 accepted as Balboana Uvarov, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Balboa Distant, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)
 Balboa Liebmann ex Didrichsen, 1853 accepted as Balboa Liebmann ex Didrichsen, 1853 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Balboa J.E. Planchon & Triana, 1860 accepted as Chrysochlamys Poeppig in Poeppig & Endlicher, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)
 Balboa Banks, 1925 accepted as Braunilla Wasbauer & Kimsey, 2019 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pompilidae (Family)

Balboana
 Balboana Banks, 1944 accepted as Braunilla Wasbauer & Kimsey, 2019 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pompilidae (Family)
     Balboana Uvarov, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Balcanella
     Balcanella Karaman, 1933 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ingolfiellidae (Family)
     Balcanella Tikhomirova, 1989 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)
 Balcanella Karaman, 1968 accepted as Batraxis Reitter, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Balcanella Anonymous, 1972 accepted as Batraxis Reitter, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Balcanobythus
 Balcanobythus Karaman, 1954 accepted as Bryaxis Kugelann, 1794 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Balcanobythus Karaman, 1957 accepted as Bryaxis Kugelann, 1794 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Baldwinia
     Baldwinia Ancey, 1899 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Baldwinia C.S. Rafinesque, 1818 accepted as Passiflora Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Passifloraceae (Family)

Balea
 Balea Agassiz, 1846 accepted as Balea Agassiz, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Balea Gray, 1824 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
 Balea Nutting, 1906 accepted as Balella Stechow, 1919 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Balellidae (Family)

Balearica
 Balearica Kobelt in Rossmaessler, 1904 accepted as Allognathus Pilsbry in Tryon & Pilsbry, 1888 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)
     Balearica Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Gruiformes (Order) > Gruidae (Family)

Balearius
     Balearius Rafinesque, 1815 accepted as Balearius Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Balearius Gray, 1849 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Balega
     Balega Reitter, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Balega Reitter, 1883 accepted as Balega Reitter, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Balfouria
     Balfouria Parent, 1933 accepted as Falbouria Dyte, 1980 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Balfouria Crosse, 1884 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Balfouria R. Brown, 1810 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Balfouria Dschunkowsky, 1937 accepted as Balfouria Dschunkowsky, 1937 · Bacteria (Kingdom) > Bacteria (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Balfouria Leiper, 1911 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Echinostomida (Order) > Balfouriidae (Family)
 Balfouria (H. Ohba) H. Ohba, 1995 accepted as Ohbaea V.V. Byalt & I.V. Sokolova, 1999 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)

Balgus
     Balgus Fleutiaux, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
 Balgus Blackwelder, 1947 accepted as Anopsilus Kirsch, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Balia
 Balia Swainson, 1840 accepted as Balea Gray, 1824 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
     Balia Doubleday in Scudder, 1869 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Balius
 Balius Guérin-Méneville in Thomson, 1857 accepted as Trycherus Gerstaecker, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)
 Balius Schiödte, 1863 accepted as Anthracus Motschoulsky, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Balius Gistl, 1848 accepted as Melanostola Solier, 1836 (junior objective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Balkanoniscus
     Balkanoniscus Vandel, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Trichoniscidae (Family)
     Balkanoniscus Verhoeff, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Trichoniscidae (Family)

Balladina
     Balladina Roux, 1899 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Holostichidae (Family)
 Balladina Dahl, 1932 accepted as Balladyna Kowalewsky, 1882 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Urostylidae (Family)

Balladyna
     Balladyna Kowalewsky, 1882 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Amphisiellidae (Family)
     Balladyna Raciborski, 1900 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Balladynaceae (Family)

Balladynella
 Balladynella Theissen & H. Sydow, 1918 accepted as Dysrhynchis F.E. Clements, 1909 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dysrhynchaceae (Family)
     Balladynella Jankowski, 1979 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Amphisiellidae (Family)
 Balladynella Stiller, 1974 accepted as Balladynella Jankowski, 1979 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Amphisiellidae (Family)

Ballardia
 Ballardia Montrouzier, 1860 accepted as Metrosideros Banks ex J. Gaertner, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
     Ballardia Curran, 1927 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Ballardia Rondani, 1863 accepted as Bellardia Rondani, 1863 (misspelling - incorrect original spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)

Ballia
     Ballia Harvey, 1840 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Balliales (Order) > Balliaceae (Family)
     Ballia Mulsant, 1853 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Ballia Hall, 1867 accepted as Bullia Griffith, 1834 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)

Balliella
     Balliella H. Itono & T. Tanaka, 1973 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Ceramiaceae (Family)
     Balliella Badonnel, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Psoquillidae (Family)

Ballophilus
     Ballophilus Cook, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Geophilomorpha (Order) > Schendylidae (Family)
     Ballophilus Cook, 1896, nom. nud. accepted as Ballophilus Cook, 1896 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Geophilomorpha (Order) > Schendylidae (Family)

Baloena
 Baloena Lesson, 1827 accepted as Balaena Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Balaenidae (Family)
 Baloena Robineau, 1989 accepted as Eubalaena Gray, 1864 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Balaenidae (Family)

Baloenoptera
 Baloenoptera Lesson, 1827 accepted as Balaenoptera Lacépède, 1804 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Balaenopteridae (Family)
 Baloenoptera Cadenat, 1957 accepted as Balaenoptera Lacépède, 1804 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Balaenopteridae (Family)

Baloghacarus
     Baloghacarus Balogh & Mahunka, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Hermanniellidae (Family)
 Baloghacarus Mahunka, 1983 accepted as Baloghacarus Balogh & Mahunka, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Hermanniellidae (Family)

Baloghia
     Baloghia Mahunka, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Haplozetidae (Family)
     Baloghia Endlicher, 1833 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Baloghiella
     Baloghiella Mandl, 1981 accepted as Vata Fauvel, 1881 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)
     Baloghiella Bulanova-Zachvatkina in Balogh, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Haplozetidae (Family)
     Baloghiella Bulznova-Zachvatkina, 1966 accepted as Baloghiella Bulanova-Zachvatkina in Balogh, 1972 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Haplozetidae (Family)

Balsa
     Balsa Walker in D'Urban, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Balsa Walker, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Balsa Stål, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cercopidae (Family)

Balsamita
 Balsamita Desfontaines, 1792 accepted as Tanacetum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Balsamita P. Miller, 1754 accepted as Tanacetum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Balta
     Balta Tepper, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Pseudophyllodromiidae (Family)
 Balta Sørensen, 1902 accepted as Eubalta Roewer, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)

Baltazaria
     Baltazaria C.A. Leal-Dutra, B.T.M. Dentinger & G.W. Griffith in Leal-Dutra et al., 2018 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Russulales (Order) > Peniophoraceae (Family)
     Baltazaria Townes, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Baltia
     Baltia Dohm, 1925 † accepted as Balticeras Dohm, 1925 † (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Baltia Moore, 1878 accepted as Pontia Fabricius, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)

Balticola
     Balticola Droop, 1956 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Volvocales (Order) > Haematococcaceae (Family)
     Balticola Jensen-Haarup, 1913 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Balzania
     Balzania Jacot, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Ceratozetidae (Family)
     Balzania Spegazzini, 1899 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Thyridiales (Order) > Thyridiaceae (Family)

Bambanagites
     Bambanagites Mojsisovics, 1896 † accepted as Bambanagites Mojsisovics, 1896 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bambanagites Mojsisovics, 1897 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bambesa
     Bambesa Arnold, 1936 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Bambesa Dirsh, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Bambusananus
     Bambusananus Li & Xing, 2024 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Bambusananus Li & Xing in Li et al., 2011 accepted as Bambusananus Li & Xing, 2024 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Bambusananus Yang & Chen, 2013 accepted as Bambusananus Li & Xing, 2024 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Bambusaria
     Bambusaria W.M. Jaklitsch, D.Q. Dai, K.D. Hyde & H. Voglmayr in Jaklitsch et al., 2015 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Valsariales (Order) > Valsariaceae (Family)
     Bambusaria Melichar, 1914 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Delphacidae (Family)

Bambusicola
     Bambusicola Gould, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
     Bambusicola Fursch, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
     Bambusicola D.Q. Dai & K.D. Hyde in Dai, Bhat, Liu, Chukeatirote, Zhao & Hyde, 2012 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Bambusicolaceae (Family)

Bambusistroma
     Bambusistroma D.Q. Dai & K.D. Hyde in Adamčík et al., 2015 accepted as Bambusistroma D.Q. Dai & K.D. Hyde, 2015 (unavailable name)· Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Periconiaceae (Family)
     Bambusistroma D.Q. Dai & K.D. Hyde, 2015 accepted as Periconia Tode, 1791 (junior subjective synonym)· Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Periconiaceae (Family)

Bambusites
     Bambusites C.F.P. Martius, 1822 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Bambusites Ettingshausen, 1887 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Bamia
 Bamia R. Brown ex N. Wallich, 1830 accepted as Bamia R. Brown ex N. Wallich, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Bamia R. Brown ex J. Sims, 1815 accepted as Bamia R. Brown ex J. Sims, 1815 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Banalia
 Banalia Bubani, 1899-1900 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Banalia Moquin-Tandon in Alph. de Candolle, 1849 accepted as Indobanalia A.N. Henry & B. Roy, 1969 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Banalia Rafinesque, 1840 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Bananella
     Bananella Schmidt, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dictyopharidae (Family)
 Bananella Labbé, 1895 accepted as Eimeria Schneider, 1875 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Eimeriida (Order) > Eimeriidae (Family)

Banchopsis
     Banchopsis Rudow, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Banchopsis Kriechbaumer, 1886 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Bancroftia
     Bancroftia J.C. Rojas, F. Rodrigues & R. Porras, 1838 accepted as Clinopodium Linnaeus, 1753 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Bancroftia R.K. Porter, 1838 accepted as Clinopodium Linnaeus, 1753 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Bancroftia Billberg, 1833 accepted as Arracacia E.N. Bancroft, 1828 (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Bancroftia Lutz in Bourroul, 1904 accepted as Orthopodomyia Theobald, 1904 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
     Bancroftia Macfadyen, 1837 accepted as Tovaria Ruiz & Pavon, 1794 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Tovariaceae (Family)

Bania
     Bania Beccari, 1877 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Menispermaceae (Family)
     Bania Brusina, 1896 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)

Bankesia
 Bankesia Bruce, 1790 accepted as Bankesia Bruce, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
     Bankesia Tutt, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Psychidae (Family)

Bankia
     Bankia Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Teredinidae (Family)
     Bankia Gray, 1840 accepted as Bankia Gray, 1842 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Teredinidae (Family)
     Bankia Guenée, 1852 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Banksia
     Banksia Linnaeus f., 1782 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
 Banksia Radford, 1942 accepted as Pililaelaps Radford, 1947 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Laelapidae (Family)
 Banksia Warren & Marsicano, 1998 † accepted as Banksiops Warren & Marsicano, 2000 † · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Temnospondyli (Order) > Brachyopidae (Family)
 Banksia Voigts & Oudemans, 1905 accepted as Xenillus Robineau-Desvoidy, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Xenillidae (Family)
 Banksia J.R. Forster & J.G.A. Forster, 1775 accepted as Pimelea Banks ex J. Gaertner, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Thymelaeaceae (Family)
 Banksia Bruce, 1790 accepted as Hagenia J.F. Gmelin, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)

Banksiella
 Banksiella Klapálek, 1921 accepted as Paragnetina Klapálek, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Perlidae (Family)
     Banksiella Muir, 1917 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Derbidae (Family)

Banya
     Banya Schouteden, 1916 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Banya Navás, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)

Baojingia
     Baojingia Yang, 1978 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Baojingia Yang in Zhou et al., 1977 † accepted as Eoshengia Yang, 1978 † (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Lisaniidae (Family)

Baphia
     Baphia G. Loddiges in C. Loddiges, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Baphia Gray, 1847 accepted as Vulsella Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pteriidae (Family)

Baphioxylon
     Baphioxylon R.N. Lakhanpal & U. Prakash, 1970 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Baphioxylon B.S. Trivedi & K. Srivastava, 1986 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Bapta
     Bapta Stephens, 1829 accepted as Bapta Stephens, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Bapta Stephens, 1831 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Baptolinus
 Baptolinus Kraatz, 1858 accepted as Atrecus Jacquelin Du Val, ? 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Baptolinus Roger, 1856 accepted as Atrecus Jacquelin Du Val, ? 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Baracus
     Baracus Moore, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
     Baracus Kirkaldy, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Baratha
     Baratha Walker, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Baratha Bahir & Yeo, 2007 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Gecarcinucidae (Family)

Baratia
     Baratia Llucià Pomares, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Baratia Llucià-Pomares, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Barbaracletodes
     Barbaracletodes Huys, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Cletodidae (Family)
     Barbaracletodes Becker in Becker, Noodt & Schriever, 1979 accepted as Barbaracletodes Becker in Becker, Noodt & Schriever, 1979 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Cletodidae (Family)

Barbarea
     Barbarea W.T. Aiton, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Barbarea Scopoli, 1760 accepted as Barbarea Scopoli, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Barbariella
 Barbariella Shannon, 1922 accepted as Chrysosyrphus Sedman in Stone et al., 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
 Barbariella Middelhoek, 1949 accepted as Asaphomyces Thaxter, 1931 · Fungi (Kingdom) > Ascomycota (Phylum) > Laboulbeniomycetes (Class) > Laboulbeniales (Order) > Laboulbeniaceae (Family)

Barbaropus
     Barbaropus Gorham, 1887 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Barbaropus Xu, Qin & Dietrich, 2019 accepted as Barbulanus Xu, Qin & Dietrich in Xu et al., 2019 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Barbarosphaera
     Barbarosphaera Arcangeli, 1955 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Barbarosphaera Vandel, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Spelaeoniscidae (Family)

Barbarus
     Barbarus Mazur, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
     Barbarus Crotch, 1872 accepted as Barbarus Crotch, 1872 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Barbata
 Barbata Sowerby, 1839 accepted as Barbata Sowerby, 1839 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Barbata Méhelÿ, 1935 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Barbatia
     Barbatia Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)
     Barbatia Gray, 1840 † accepted as Barbatia Gray, 1842 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)

Barbatula
     Barbatula Lesson, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Piciformes (Order) > Ramphastidae (Family)
     Barbatula Linck, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Nemacheilidae (Family)

Barbella
     Barbella Draber-Monko, 1965 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Barbella M. Fleischer ex V.F. Brotherus in Engler & Prantl, 1906 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Amblystegiaceae (Family)

Barberia
     Barberia Dyar, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Barberia Miller, 1951 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)
 Barberia Cobos, 1980 accepted as Tyndaris Thomson, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Barberiella
 Barberiella Shannon, 1922 accepted as Chrysosyrphus Sedman in Stone et al., 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
     Barberiella Poppius, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Barbeya
     Barbeya G. Schweinfurth, 1892 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Barbeyaceae (Family)
 Barbeya N. Alboff, 1893 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Barbiellinia
     Barbiellinia Bezzi, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
 Barbiellinia Mello-Leitão, 1944 accepted as Triglochinura Mello-Leitão, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)

Barbiera
 Barbiera Jeannel, 1952 accepted as Prosthecarthron Raffray, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Barbiera C.P.J. Sprengel, 1831 accepted as Barbieria A.P. de Candolle, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Barbieria
     Barbieria A.P. de Candolle, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Barbieria † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Diploporita (Class) > Diploporita (awaiting allocation) (Order) > Diploporita (awaiting allocation) (Family)

Barbouria
     Barbouria Lang, Smith & Thomas, 1940 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Cyathopsidae (Family)
     Barbouria Rathbun, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Barbouriidae (Family)

Barbourina
     Barbourina Amaral, 1924 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Barbourina Bermúdez, 1939 accepted as Barbourinella Bermúdez, 1940 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Verneuilinidae (Family)

Barbula
     Barbula J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
 Barbula Loureiro, 1790 accepted as Caryopteris Bunge, 1835 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
     Barbula Deshayes, 1830 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Barbus
     Barbus Nilsson, 1832 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Barbus Cuvier & Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Bardana
     Bardana DeLong, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Bardana J. Hill, 1762 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bardistus
     Bardistus Dallas, 1852 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Bardistus Newman, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Barentsia
     Barentsia Hincks, 1880 · Animalia (Kingdom) > Entoprocta (Phylum) > Entoprocta (awaiting allocation) (Class) > Urnatellida (Order) > Barentsiidae (Family)
 Barentsia Stebbing, 1894 accepted as Gulbarentsia Stebbing, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Oedicerotidae (Family)

Bargus
 Bargus Schiødte, 1867 accepted as Bledius Leach, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Bargus Schiödte, 1866 accepted as Bledius Leach, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Baria
     Baria González-Sponga, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Cosmetidae (Family)
     Baria Karsch, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)

Barinomorphus
     Barinomorphus Morimoto, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Barinomorphus Voss, 1965 accepted as Baridiomorphus Voss, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Baris
 Baris Looss, 1899 accepted as Deuterobaris Looss, 1900 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Echinostomida (Order) > Microscaphidiidae (Family)
     Baris Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Barisoma
     Barisoma Motschoulsky, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Barisoma Faust, 1888 accepted as Hollisiella Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Barkeria
     Barkeria Addicott, 1970 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
     Barkeria Knowles & Westcott, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Barlaea
 Barlaea P.A. Saccardo, 1889 accepted as Lamprospora De Notaris, 1863 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pyronemataceae (Family)
 Barlaea H.G. Reichenbach, 1876 accepted as Cynorkis Du Petit-Thouars, 1809 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Barnardia
 Barnardia Péringuey, 1926 accepted as Teratotarsa Tschitscherin, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Barnardia Yamaguti, 1963 accepted as Chondracanthus Delaroche, 1811 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Chondracanthidae (Family)
     Barnardia J. Lindley, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
     Barnardia Lehrer, 2003 accepted as Christiaanbarnardia Kemal & Koçak, 2020 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Barnardiella
 Barnardiella P. Goldblatt, 1976 accepted as Moraea P. Miller, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
     Barnardiella Turner, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Barnardillo
     Barnardillo Taiti, Paoli & Ferrara, 1998 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Armadillidae (Family)
 Barnardillo Arcangeli, 1934 accepted as Barnardillo Taiti, Paoli & Ferrara, 1998 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Armadillidae (Family)

Barnardina
 Barnardina Taylor, Patterson & Choi, 1985 † accepted as Laevicalvatella Patterson, 1989 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Glandulinidae (Family)
     Barnardina Haynes, 1981 † accepted as Laevicalvatella Patterson, 1989 † (nomen nudum)· Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Glandulinidae (Family)
     Barnardina Kalantari, 1970 † · Chromista (Kingdom) > Retaria (Phylum) > Foraminifera (awaiting allocation) (Class) > (Order) > (Family)

Barnesia
     Barnesia Karl, 2018 † accepted as Barnesia Karl, 2018 † (unreplaced junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Testudinidae (Family)
     Barnesia Thalmann, 1994 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Notharctidae (Family)
 Barnesia Grossbeck, 1910 accepted as Eubarnesia Cockerell, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Barnesia Bertoni, 1901 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Barnesia J. Cardot, 1910 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)

Barnesiella
     Barnesiella Sakamoto, Lan & Benno, 2007 · Bacteria (Kingdom) > Bacteroidota (Phylum) > Bacteroidia (Class) > Bacteroidales (Order) > Porphyromonadaceae (Family)
     Barnesiella Trejo, 1983 † · Biota incertae sedis (Kingdom) > Calcitarcha (Phylum) > (Class) > (Order) > (Family)

Barnettia
 Barnettia T. Santisuk, 1973 accepted as Santisukia R.K. Brummitt, 1992 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Bignoniaceae (Family)
     Barnettia Schuchert, 1996 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Pandeidae (Family)
 Barnettia A.C. Batista & J.L. Bezerra in A.C. Batista, E.P. Pezerra & J.L. Bezerra, 1962 accepted as Microcallis H. Sydow, 1926 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Chaetothyriales (Order) > Chaetothyriaceae (Family)

Baroda
     Baroda Ragonot, 1888 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Baroda Stoliczka, 1870 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Barola
     Barola Rolston, 1992 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Barola Adanson, 1763 accepted as Trichilia P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Meliaceae (Family)

Barombia
 Barombia Schlechter, 1914 accepted as Aerangis H.G. Reichenbach, 1865 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Barombia Trewavas, 1962 accepted as Pungu Trewavas in Trewavas, Green & Corbet, 1972 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)
 Barombia Jacoby, 1903 accepted as Bonesioides Laboissière, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Barombia Karsch, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Ixalidiidae (Family)

Barombiella
     Barombiella Laboissière, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Barombiella D.L. Szlachetko, 2003 accepted as Ypsilopus Summerhayes, 1949 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Baronia
     Baronia J.G. Baker, 1882 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)
     Baronia Salvin, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)

Baropus
     Baropus Marsh, 1894 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Baropus Baird, 1952 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Barrabandius
 Barrabandius Bonaparte, 1850 accepted as Polytelis Wagler, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Psittaciformes (Order) > Psittacidae (Family)
     Barrabandius Bonaparte, 1850, nom. nud. accepted as Polytelis Wagler, 1832 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Psittaciformes (Order) > Psittacidae (Family)

Barrandia
     Barrandia Hall, 1860 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Barrandia M'Coy, 1849 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Nileidae (Family)

Barrella
     Barrella Hedström, 1930 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Barrella Y. Ahn & C.A. Shearer, 1995 accepted as Pseudoyuconia Lar.N. Vassiljeva, 1983 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Pleosporaceae (Family)
 Barrella Hirst, 1910 accepted as Eusimonia Kraepelin, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Solifugae (Order) > Karschiidae (Family)

Barreria
 Barreria Scopoli, 1777 accepted as Poraqueiba Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Metteniusales (Order) > Metteniusaceae (Family)
 Barreria Linnaeus, 1753 accepted as Diosma Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Barrettia
     Barrettia Woodward, 1862 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Hippuritidae (Family)
 Barrettia T.R. Sim, 1909 accepted as Ricinodendron J. Mueller-Arg., 1864 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Barringtonia
     Barringtonia J.R. Forster & J.G.A. Forster, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Lecythidaceae (Family)
     Barringtonia Waterhouse, 2010 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Linoproductidae (Family)

Barroisella
     Barroisella Hall & Clarke, 1892 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Lingulidae (Family)
     Barroisella Hall & Clarke, 1889 † accepted as Barroisella Hall & Clarke, 1892 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Lingulidae (Family)

Barroisia
     Barroisia Munier-Chalmas, 1882 † · Animalia (Kingdom) > Porifera (Phylum) > Calcarea (Class) > Thalamida (Order) > Barroisiidae (Family)
 Barroisia Grossouvre, 1894 † accepted as Barroisiceras Grossouvre, 1894 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Acanthoceratida (Order) > Collignoniceratidae (Family)

Barrosia
 Barrosia Smith, 1952 accepted as Calloplesiops Fowler & Bean, 1930 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Plesiopidae (Family)
     Barrosia Villiers, 1952 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Barrosia Souto, Reverter-Gil & Fernández-Pulpeiro, 2010 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Calloporidae (Family)

Barrouxia
     Barrouxia Schneider, 1885 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Eimeriida (Order) > Eimeriidae (Family)
 Barrouxia Labbé, 1899 accepted as Barrouxia Labbé, 1899 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Barrowia
     Barrowia Decaisne in Alph. de Candolle, 1844 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
     Barrowia Smithers, 1984 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Psocidae (Family)

Barsine
     Barsine Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Barsine Meyrick, 1883 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Barteria
 Barteria Welwitsch, 1861 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Nymphaeales (Order) > Nymphaeaceae (Family)
     Barteria J.D. Hooker, 1860 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Passifloraceae (Family)

Bartheletia
     Bartheletia G. Arnaud ex C. Scheuer, R. Bauer, M. Lutz, E. Stabentheiner, V.A. Mel'nik & M. Grube, 2008 · Fungi (Kingdom) > Basidiomycota (Phylum) > Bartheletiomycetes (Class) > Bartheletiales (Order) > Bartheletiaceae (Family)
     Bartheletia G. Arnaud, 1954 accepted as Bartheletia G. Arnaud ex C. Scheuer, R. Bauer, M. Lutz, E. Stabentheiner, V.A. Mel'nik & M. Grube, 2008 (unavailable name)· Fungi (Kingdom) > Basidiomycota (Phylum) > Bartheletiomycetes (Class) > Bartheletiales (Order) > Bartheletiaceae (Family)

Barthelia
     Barthelia G.W. Rothwell & G. Mapes, 2001 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Voltziales (Order) > Bartheliaceae (Family)
     Barthelia Oloriz & Schairer, 1983 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Bartlettia
     Bartlettia Gray, 1871 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Podocnemididae (Family)
     Bartlettia Adams, 1867 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Mycetopodidae (Family)
     Bartlettia A. Gray, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bartlingia
 Bartlingia A.T. Brongniart, 1826 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Bartlingia F. von Mueller, 1882 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Bartlingia H.G.L. Reichenbach, 1824 accepted as Plocama W. Aiton, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Bartonia
     Bartonia Muhlenberg ex Willdenow, 1801 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
     Bartonia Cossmann, 1901 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
 Bartonia Strong, Tyzzer, Brues & Sellards, 1915 accepted as Bartonella Strong et al., 1915 (Approved Lists, 1980) · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Alphaproteobacteria (Class) > Hyphomicrobiales (Order) > Bartonellaceae (Family)
 Bartonia Pursh, 1812 accepted as Mentzelia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cornales (Order) > Loasaceae (Family)

Bartramia
     Bartramia Lesson, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)
     Bartramia J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Bartramiaceae (Family)
 Bartramia Linnaeus, 1753 accepted as Bartramia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Bartramia R.A. Salisbury, 1796 accepted as Penstemon Schmidel, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)

Bartschella
 Bartschella N.L. Britton & J.N. Rose, 1923 accepted as Mammillaria A.H. Haworth, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
     Bartschella Iredale, 1916 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)

Bartschia
     Bartschia Gayet & Meunier, 1996 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Sarcopterygii (Class) > Polypteriformes (Order) > Polypteriformes (awaiting allocation) (Family)
     Bartschia Rehder, 1943 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Colubrariidae (Family)

Baruna
     Baruna Distant, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)
     Baruna Stebbing, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Camptandriidae (Family)

Barya
     Barya Klotzsch, 1854 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Begoniaceae (Family)
     Barya Fuckel, 1864 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Clavicipitaceae (Family)

Barybas
     Barybas Burmeister, 1855 accepted as Byrasba Harold, 1869 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Barybas Blanchard, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Barybas Dejean, 1833 accepted as Barybas Blanchard, 1850 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Barycephalus
 Barycephalus Brauns, 1895 accepted as Barytatocephalus Schulz, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Barycephalus Günther, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)
 Barycephalus Bode, 1953 † accepted as Amblicephalonius Bode, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coptoclavidae (Family)

Baryceros
     Baryceros Gravenhorst, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Baryceros (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Barycerus
 Barycerus Dalla Torre, 1901 accepted as Baryceros Gravenhorst, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Barycerus Schoenherr, 1833 accepted as Barycerus Schönherr, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Barycerus Schönherr, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Barynema
     Barynema Fraunfelter, 1973 † accepted as Barynema Fraunfelter, 1973 † (unavailable name)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Platyceratidae (Family)
     Barynema Banks, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Odontoceridae (Family)

Barynotus
 Barynotus Günther, 1868 accepted as Barbus Cuvier & Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
     Barynotus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Baryodma
 Baryodma Casey, 1906 accepted as Aleochara Gravenhorst, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Baryodma Thomson, 1858 accepted as Aleochara Gravenhorst, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Barypus
     Barypus Curtis, 1837 accepted as Barypus Curtis, 1837 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Barypus Agassiz, 1847 accepted as Baripus Dejean, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Barypus Laporte, 1834 accepted as Baripus Dejean, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Baryrhynchus
     Baryrhynchus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Baryrhynchus Roberts, 1922 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Baryscelis
     Baryscelis Dejean, 1834 accepted as Baryscelis Boisduval, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Baryscelis Boisduval, 1835 accepted as Baryscelis Boisduval, 1835 (taxon inquirendum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Barysoma
 Barysoma Faust, 1888 accepted as Hollisiella Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Barysoma Bunge, 1839 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Barysoma Cox, 1965 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Therapsida (Order) > Kannemeyeriidae (Family)

Barysomus
     Barysomus Schönherr, 1840 accepted as Rhigus Schönherr, 1823 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Barysomus Dejean, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Barytettix
     Barytettix Scudder, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Barytettix Günther, 1939 accepted as Marshallacris Rehn, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)

Barytopus
 Barytopus Lacordaire, 1842 accepted as Barytopus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
     Barytopus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)

Barytychius
 Barytychius Jekel, 1861 accepted as Pachytychius Jekel, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Barytychius LeConte & Horn, 1883 accepted as Smicronyx Schönherr, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Basanistes
     Basanistes Lichtenstein, 1842 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Basanistes Nordmann, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Lernaeopodidae (Family)

Basanus
     Basanus Dejean, 1834 accepted as Basanus Lacordaire, 1859 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Basanus Lacordaire, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Basedowia
     Basedowia Lea, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Basedowia Pritzel, 1918 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Baseotoxus
     Baseotoxus Gemminger & Harold, 1872 accepted as Baseotoxus Agassiz, 1836 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Baseotoxus Agassiz, 1836 accepted as Basitoxus Audinet-Serville, 1832 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Bashania
 Bashania P.C. Keng & T.P. Yi, 1982 accepted as Arundinaria A. Michaux, 1803 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Bashania Qiu, 1983 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Basides
     Basides Motschoulsky, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Basides Pic, 1925 accepted as Basides Motschoulsky, 1873 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Basilepta
 Basilepta Weise, 1923 accepted as Cleorina Lefèvre, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Basilepta Baly, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Basileuterus
     Basileuterus Cabanis in Schom-burgk Guiana, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)
     Basileuterus Cabanis, 1847 accepted as Basileuterus Cabanis in Schom-burgk Guiana, 1849 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)

Basilicoides
 Basilicoides Ma, 1938 † accepted as Dolerobasilicus Harrington & Leanza, 1942 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphidae (Family)
     Basilicoides Harrington, 1937 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Basilicus
     Basilicus Salter, 1849 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphidae (Family)
 Basilicus Oppel, 1811 accepted as Basiliscus Laurenti, 1768 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Corytophanidae (Family)

Basiliscus
     Basiliscus Laurenti, 1768 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Corytophanidae (Family)
     Basiliscus Macgillivray, 1839 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Basiliscus Zittel, 1885 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphidae (Family)

Basiprionota
     Basiprionota Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Basiprionota Blanchard, 1845 accepted as Basiprionota Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Basipta
     Basipta Chevrolat in Dejean, 1836 accepted as Basipta Chevrolat in D'Orbigny, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Basipta Chevrolat in D'Orbigny, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Basipta Boheman, 1854 accepted as Basipta Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Basiria
 Basiria Farooqui, 1967 accepted as Cranifera Kloss, 1960 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Thelastomatidae (Family)
     Basiria Siddiqi, 1959 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Tylenchidae (Family)

Bassania
 Bassania Cambridge, 1898 accepted as Bassaniana Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Thomisidae (Family)
 Bassania A. de Gasparis, 1895 † accepted as · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Jungermanniales (Order) > Jungermanniales (awaiting allocation) (Family)
 Bassania Bannikov, 2004 † accepted as Bassanichthys Bannikov, 2006 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Eocottidae (Family)
     Bassania Walker, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Bassareus
     Bassareus Haldeman, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Bassareus Linnavuori, 1979 accepted as Neobassareus Koçak, 1981 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Bassaris
     Bassaris Hübner, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Bassaris Lichtenstein, 1830 accepted as Bassariscus Coues, 1887 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Procyonidae (Family)

Basseoceras
     Basseoceras van Hoepen, 1968 † accepted as Forresteria Reeside, 1932 † (junior subjective synonym)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Basseoceras Collignon, 1965 † accepted as Barroisiceras Grossouvre, 1894 † (junior subjective synonym)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Acanthoceratida (Order) > Collignoniceratidae (Family)

Bassettia
 Bassettia Stebbing in Willey, 1900 accepted as Bassettithia Wilson, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Hatschekiidae (Family)
     Bassettia Ashmead, 1887 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Cynipidae (Family)

Bassia
 Bassia J.G. König ex Linnaeus, 1771 accepted as Madhuca Hamilton ex J.F. Gmelin, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
     Bassia Quoy & Gaimard in de Blainville, 1830 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Abylidae (Family)
     Bassia L. Agassiz, 1862 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Abylidae (Family)
     Bassia Allioni, 1766 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Bassia Jousseaume, 1880 † accepted as Hexaplex Perry, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Basslerella
 Basslerella Howe in Howe, Hadley et al., 1935 † accepted as · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)
 Basslerella Boucek, 1936 † accepted as Boucia Agnew, 1942 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Myodocopida (Order) > Entomozoidae (Family)
     Basslerella Kellett, 1935 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Podocopida (awaiting allocation) (Family)

Bassleria
 Bassleria Solle, 1952 † accepted as Basslederella Solle, 1968 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Stenolaemata (awaiting allocation) (Order) > Stenolaemata (awaiting allocation) (Family)
     Bassleria Harlton, 1929 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda incertae sedis (Family)

Basslerites
     Basslerites Howe in Coryell & Fields, 1937 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)
     Basslerites Teichert, 1937 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)

Basta
     Basta Pallas, 1766 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Verongiida (Order) > Ianthellidae (Family)
 Basta Oken, 1815 accepted as Ianthella Gray, 1869 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Verongiida (Order) > Ianthellidae (Family)

Basteria
 Basteria P. Miller, 1755 accepted as Calycanthus Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Calycanthaceae (Family)
 Basteria Houttuyn, 1776 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Basterotia
     Basterotia Jousseaume, 1884 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Basterotia M. Hörnes, 1859 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Basterotiidae (Family)

Batea
     Batea Koren & Danielssen, 1874 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Batea Müller, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Bateidae (Family)
     Batea Müller, 1864 accepted as Batea Müller, 1865 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Bateidae (Family)

Batella
     Batella Dall'Asta, 1981 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Batella Holthuis, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Alpheidae (Family)
 Batella Khosla, Jakhar & Mohammed, 1997 † accepted as Raybatella Kempf, 2010 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Progonocytheridae (Family)

Batesia
     Batesia Felder & Felder, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Batesia Spruce ex Bentham & J.D. Hooker, 1865 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Batesiana
     Batesiana Erwin, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Batesiana Chalumeau, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Bathanthidium
     Bathanthidium Pasteels, 1968 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Bathanthidium Mavromoustakis, 1953 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Bathelium
 Bathelium Trevisan, 1861 accepted as Laurera H.G.L. Reichenbach, 1841 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Trypetheliales (Order) > Trypetheliaceae (Family)
     Bathelium Acharius, 1803 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Trypetheliales (Order) > Trypetheliaceae (Family)

Bathophilus
 Bathophilus Miles, 1942 accepted as Rhizosomichthys Miles, 1943 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Trichomycteridae (Family)
     Bathophilus Giglioli, 1882 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Stomiiformes (Order) > Stomiidae (Family)

Bathseba
     Bathseba Motschoulsky, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Bathseba Dejean, 1835 accepted as Bathseba Motschoulsky, 1866 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Bathya
     Bathya Saint-Joseph, 1894 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
     Bathya Wang, Zhu, Sha & Ren, 2020 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Calliopiidae (Family)

Bathyactis
 Bathyactis Moseley, 1881 accepted as Fungiacyathus Sars, 1872 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Fungiacyathidae (Family)
     Bathyactis Durègne, 1886 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Bathyamussium
     Bathyamussium Oyama in Kuroda, 1951, nom. nud. accepted as Propeamussium de Gregorio, 1884 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Ostreida (Order) > Propeamussiidae (Family)
 Bathyamussium Habe, 1951 accepted as Propeamussium de Gregorio, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Ostreida (Order) > Propeamussiidae (Family)
 Bathyamussium Oyama in Kuroda, 1951 accepted as Propeamussium de Gregorio, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Ostreida (Order) > Propeamussiidae (Family)

Bathyaulax
     Bathyaulax Szépligeti, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Bathyaulax Bergroth, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Bathybiopsis
     Bathybiopsis de Folin, ? 1885 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Bathybiopsis de Folin, ? 1882 accepted as Bathybiopsis de Folin, ? 1882 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Bathycles
     Bathycles Distant, 1893 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Bathycles Koken, 1896 † accepted as Bathyclides Strand, 1928 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda incertae sedis (Order) > Codonocheilidae (Family)

Bathycoelia
 Bathycoelia Foerste, 1909 † accepted as Pionodema Foerste, 1912 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Draboviidae (Family)
     Bathycoelia Amyot & Serville, 1843 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Bathydorus
     Bathydorus Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)
     Bathydorus Schulze, 1885 accepted as Bathydorus Schulze, 1886 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)

Bathyglyptus
     Bathyglyptus Case, 1911 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Bathyglyptus Schmiedeknecht, 1913 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Bathylaimus
 Bathylaimus Ditlevsen, 1919 accepted as Ascolaimus Ditlevsen, 1919 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Monhysterida (Order) > Axonolaimidae (Family)
     Bathylaimus Cobb, 1894 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Tripyloidida (Order) > Tripyloididae (Family)
 Bathylaimus Daday, 1905 accepted as Anonchus Cobb, 1913 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Leptolaimida (Order) > Aphanolaimidae (Family)

Bathymicrops
 Bathymicrops Koefoed, 1927 accepted as Bathymicrops Hjort & Koefoed in Murray & Hjort, 1912 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Ipnopidae (Family)
     Bathymicrops Hjort & Koefoed in Murray & Hjort, 1912 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Ipnopidae (Family)

Bathynectes
     Bathynectes Stimpson, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Polybiidae (Family)
 Bathynectes Günther, 1878 accepted as Bathyonus Goode & Bean, 1885 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ophidiiformes (Order) > Ophidiidae (Family)
 Bathynectes Brinkmann, 1913 accepted as Phallonemertes Brinkmann, 1917 · Animalia (Kingdom) > Nemertea (Phylum) > Enopla (Class) > Hoplonemertea (Order) > Phallonemertidae (Family)

Bathynemertes
 Bathynemertes Brinkmann, 1917 accepted as Protopelagonemertes Brinkmann, 1917 · Animalia (Kingdom) > Nemertea (Phylum) > Enopla (Class) > Hoplonemertea (Order) > Protopelagonemertidae (Family)
     Bathynemertes Laidlaw, 1906 · Animalia (Kingdom) > Nemertea (Phylum) > Enopla (Class) > Polystilifera (Order) > Polystilifera incertae sedis (Family)

Bathynomus
     Bathynomus Grube, 1879 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Lumbriculida (Order) > Lumbriculidae (Family)
     Bathynomus A. Milne-Edwards, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Cirolanidae (Family)

Bathyopsis
     Bathyopsis Cope, 1881 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Dinocerata (Order) > Uintatheriidae (Family)
     Bathyopsis Folin, 1884 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Bathyraja
     Bathyraja Ishiyama, 1958 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Arhynchobatidae (Family)
 Bathyraja Ishyama & Hubbs, 1968 accepted as Bathyraja Ishiyama, 1958 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Arhynchobatidae (Family)

Bathysiredon
     Bathysiredon Taylor, 1940 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
 Bathysiredon Dunn, 1939 accepted as Ambystoma Tschudi, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Caudata (Order) > Ambystomatidae (Family)

Bathysphaera
     Bathysphaera Hollande & Enjumet, 1960 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Bathysphaera Beebe, 1932 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Stomiiformes (Order) > Stomiidae (Family)

Bathyspinula
     Bathyspinula Allen & Sanders, 1982 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Nuculanida (Order) > Bathyspinulidae (Family)
     Bathyspinula Filatova, 1958 accepted as Bathyspinula Allen & Sanders, 1982 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Nuculanida (Order) > Bathyspinulidae (Family)

Bathystoma
 Bathystoma Marsson, 1887 † accepted as Bathystomella Strand, 1928 † · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Cheilostomatida (awaiting allocation) (Family)
 Bathystoma Scudder in Putnam, 1863 accepted as Haemulon Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Haemulidae (Family)
 Bathystoma Fitzinger, 1873 accepted as Leuciscus Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Bathytroctes
     Bathytroctes Günther, 1878 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osmeriformes (Order) > Alepocephalidae (Family)
     Bathytroctes Parr, 1952 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Bathyuriscidella
     Bathyuriscidella Rasetti, 1948 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Bathyuriscidella Rusconi † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Dolichometopidae (Family)

Bathyvargula
     Bathyvargula Poulsen, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Myodocopida (Order) > Cypridinidae (Family)
     Bathyvargula Kornicker, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Myodocopida (Order) > Cypridinidae (Family)

Batia
 Batia Walker, 1867 accepted as Paridnea Ragonot, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Batia Stephens, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Batis
     Batis Boie, 1833 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)
     Batis P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Bataceae (Family)
 Batis Bonaparte, 1838 accepted as Raja Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rajidae (Family)

Batocera
     Batocera Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Batocera Laporte de Castelnau, 1840 accepted as Batocera Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Batochares
     Batochares Hansen, 1991 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)
     Batochares Orchymont, 1939 accepted as Batochares Hansen, 1991 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)

Batodendron
 Batodendron Nuttall, 1842 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Batodendron V.A. Chachlov, 1921 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lepidodendrales (Order) > Lepidodendraceae (Family)

Batolites
     Batolites Oken, 1815 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Batolites de Montfort, 1808 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Hippuritida (awaiting allocation) (Family)

Batoscelis
     Batoscelis Lacordaire, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Batoscelis Dejean, 1836 accepted as Batoscelis Dejean, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Batotheca
     Batotheca Enderlein, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Batotheca Oppliger, 1915 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Tetractinomorpha (awaiting allocation) (Order) > Tetractinomorpha (awaiting allocation) (Family)

Batracarus
     Batracarus Fain, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Ereynetidae (Family)
 Batracarus Vercammen-Grandjean, 1968 accepted as Anouracarus Vercammen-Grandjean, Langston & Audy, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Leeuwenhoekiidae (Family)

Batrachion
     Batrachion Dejean, 1836 accepted as Batrachion Dejean, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Batrachion Chevrolat, 1842 accepted as Notiobia Perty, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Batrachium
 Batrachium Agassiz, 1846 accepted as Notiobia Perty, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Batrachium (A.P. de Candolle) S.F. Gray, 1821 accepted as Ranunculus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)

Batrachocephalus
     Batrachocephalus Bleeker, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ariidae (Family)
     Batrachocephalus Fric, 1876 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)

Batrachoglanis
 Batrachoglanis Günther, 1864 † accepted as Batrochoglanis Gill, 1858 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Pseudopimelodidae (Family)
 Batrachoglanis Gill, 1861 accepted as Batrochoglanis Gill, 1858 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Pseudopimelodidae (Family)

Batrachoides
 Batrachoides Hitchcock, 1858 † accepted as · Questionable / non-biota (fossil) (Kingdom) > Pseudofossils (Phylum) > (Class) > (Order) > (Family)
     Batrachoides Lacepède, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Batrachoidiformes (Order) > Batrachoididae (Family)

Batrachomatus
     Batrachomatus Clark, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
 Batrachomatus Schaum & White, 1847 accepted as Batrachomatus Clark, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Batrachomorphus
 Batrachomorphus Linnavuori, 1960 accepted as Batracomorphus Lewis, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Batrachomorphus Agassiz, 1846 accepted as Batracomorphus Lewis, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Batrachops
 Batrachops Heckel, 1840 accepted as Crenicichla Heckel, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)
 Batrachops Bibron in Duméril, 1855 accepted as Colomesus Gill, 1884 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontidae (Family)

Batrachopsis
 Batrachopsis Boulenger, 1882 accepted as Lechriodus Boulenger, 1882 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Limnodynastidae (Family)
     Batrachopsis Fitzinger, 1843 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Caudata (Order) > Plethodontidae (Family)

Batrachopus
 Batrachopus Goldfuss, 1820 accepted as Histrio Fischer, 1813 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Antennariidae (Family)
     Batrachopus Hitchcock, 1845 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Batrachopodidae (Family)
     Batrachopus Blanchard in Gay, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)

Batrachorhina
     Batrachorhina Chevrolat in d'Orbigny, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Batrachorhina Dejean, 1835 accepted as Batrachorhina Chevrolat in d'Orbigny, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Batrachosaurus
     Batrachosaurus Fitzinger, 1843 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Batrachosaurus Owen, 1876 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
 Batrachosaurus Fitzinger, 1839 † accepted as Batrachosaurus Fitzinger, 1839 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Batrachus
     Batrachus Rafinesque, 1814 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Batrachus Schaeffer, 1760 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Batrachus Pomel, 1853 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Anura (awaiting allocation) (Family)
 Batrachus Bloch & Schneider, 1801 accepted as Batrachoides Lacepède, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Batrachoidiformes (Order) > Batrachoididae (Family)
 Batrachus Klein, 1776 accepted as Lophius Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Lophiidae (Family)
 Batrachus Walbaum, 1792 accepted as Lophius Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Lophiidae (Family)

Batracoides
 Batracoides Berthold, 1827 accepted as Batrachoides Lacepède, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Batrachoidiformes (Order) > Batrachoididae (Family)
 Batracoides Ilie, 1937 † accepted as · Questionable / non-biota (fossil) (Kingdom) > Pseudofossils (Phylum) > (Class) > (Order) > (Family)

Batrisoschema
 Batrisoschema Jeannel, 1960 accepted as Batrischema Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Batrisoschema Reitter, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Batrisoxenus
 Batrisoxenus Dajoz, 1982 accepted as Batrixenus Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Batrisoxenus Leleup, 1971 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Batschia
 Batschia Moench, 1794 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Batschia Mutis ex Thunberg, 1792 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Menispermaceae (Family)
 Batschia J.F. Gmelin, 1791 accepted as Lithospermum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Battersbya
 Battersbya Roemer, 1855 † accepted as Battersbya Roemer, 1855 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Spongophyllidae (Family)
 Battersbya Carter, 1875 accepted as Dercitus Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Pachastrellidae (Family)

Battersbyia
 Battersbyia Bowerbank, 1874 accepted as Dercitus Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
     Battersbyia Milne-Edwards & Haime, 1851 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Spongophyllidae (Family)

Battus
     Battus Dalman, 1826 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Battus † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Battus Scopoli, 1777 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)

Baucis
     Baucis R.A. Philippi, 1894 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Baucis Reichenbach, 1854 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Baucuterebra
     Baucuterebra Townsend, 1943 accepted as Cuterebra Clark, 1815 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Oestridae (Family)
 Baucuterebra Guimarães & Carrera, 1941 accepted as Baucuterebra Townsend, 1943 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Oestridae (Family)

Baudinia
 Baudinia J.B.L.T. Leschenault de la Tour ex A.P. de Candolle, 1839 accepted as Scaevola Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Goodeniaceae (Family)
 Baudinia J.B.L.T. Leschenault de la Tour ex A.P. de Candolle, 1828 accepted as Calothamnus Labillardière, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Baudonia
 Baudonia Bayan, 1873 † accepted as Eulimella Forbes & MacAndrew, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)
 Baudonia Cobos, 1957 accepted as Baudonisia Cobos, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Baudonia Mabille, 1868 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Baudonia Binney, 1885 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bauerella
 Bauerella A. Borzì, 1897 accepted as Sarcomelicope Engler in Engler & Prantl, 1896 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Bauerella A.K. Schindler, 1926 accepted as Psoralea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Baumannia
 Baumannia Spach, 1835 accepted as Oenothera Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Onagraceae (Family)
 Baumannia K.M. Schumann, 1897 accepted as Knoxia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Baumannia A.P. de Candolle in A.P. de Candolle & Alph. de Candolle, 1834 accepted as Damnacanthus C.F. Gaertner, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Baumiella
 Baumiella H. Wolff in Engler, 1927 accepted as Afrocarum S. Rauschert, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Baumiella Hennings in Warburg, 1903 accepted as Leptosphaeria Cesati & De Notaris, 1863 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Leptosphaeriaceae (Family)

Baxteria
     Baxteria Van Heurck, 1896 † accepted as Baxteriopsis G. Karsten in Engler & Prantl, 1928 † (junior homonym)· Chromista (Kingdom) > Heterokontophyta (Phylum) > Mediophyceae (Class) > Hemiaulales (Order) > Hemiaulaceae (Family)
     Baxteria R. Brown in W.J. Hooker, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Dasypogonaceae (Family)

Bayeria
     Bayeria Rübsaamen, 1914 accepted as Bayeriola Gagné, 1991 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Bayeria Fritsch in Fritsch & Bayer, 1905 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Baylisiella
     Baylisiella Markowski, 1952 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Diphyllobothriidea (Order) > Diphyllobothriidae (Family)
 Baylisiella Skrjabin & Schulz, 1937 accepted as Paralibyostrongylus Ortlepp, 1939 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Trichostrongylidae (Family)

Bayonia
 Bayonia Dugand, 1946 accepted as Mansoa A.P. de Candolle, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Bignoniaceae (Family)
 Bayonia Boulenger, 1911 accepted as Macropleurodus Regan, 1922 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)
 Bayonia Barboza du Bocage, 1865 accepted as Potamogale Du Chaillu, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Afrosoricida (Order) > Potamogalidae (Family)

Bazarella
     Bazarella Vaillant, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)
 Bazarella Vaillant, 1983 accepted as Bazarella Vaillant, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)

Bdella
     Bdella Latreille, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Bdellidae (Family)
     Bdella Savigny, 1822 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Hirudinoidea (awaiting allocation) (Order) > Hirudinoidea (awaiting allocation) (Family)

Bdellia
 Bdellia Westwood in Blyth, 1840 accepted as Bdellia Westwood in Blyth, 1840 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Hirudinoidea (awaiting allocation) (Order) > Hirudinoidea (awaiting allocation) (Family)
     Bdellia Enderlein, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Bdellorhynchus
     Bdellorhynchus Mégnin & Trouessart, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Avenzoariidae (Family)
 Bdellorhynchus Jordan & Tanaka, 1927 accepted as Mastacembelus Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Synbranchiformes (Order) > Mastacembelidae (Family)

Beamerella
     Beamerella Brennan, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombiculidae (Family)
     Beamerella Knight, 1959 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Beanella
 Beanella Dall, 1882 accepted as Lepidochitona Gray, 1821 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Lepidopleurida (Order) > Leptochitonidae (Family)
     Beanella Thiele, 1893 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Lepidopleurida (Order) > Leptochitonidae (Family)

Beania
     Beania Carruthers, 1869 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Nilssoniales (Order) > Nilssoniaceae (Family)
     Beania Johnston, 1840 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Beaniidae (Family)
     Beania Dall, 1879 accepted as Lepidochitona Gray, 1821 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Tonicellidae (Family)
 Beania Dall, 1882 accepted as Lepidochitona Gray, 1821 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Tonicellidae (Family)

Beata
 Beata O.F. Cook, 1941 accepted as Coccothrinax Sargent, 1899 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
     Beata Peckham, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Beatites
     Beatites Arthaber, 1909 † accepted as Beatites Arthaber, 1911 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)
     Beatites Arthaber, 1911 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)

Beatricea
     Beatricea Whalen & Carter, 1998 † (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Spumellaria (awaiting allocation) (Family)
 Beatricea Billings, 1857 † accepted as Aulacera Plummer, 1843 † · Animalia (Kingdom) > Porifera (Phylum) > Stromatoporoidea (Class) > Labechiida (Order) > Aulaceridae (Family)

Beauchampia
     Beauchampia Harring, 1913 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Flosculariaceae (Order) > Flosculariidae (Family)
     Beauchampia Yamaguti, 1963 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Monogenea (awaiting allocation) (Order) > Monogenea (awaiting allocation) (Family)

Beauchampiella
     Beauchampiella Remane, 1929 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Euchlanidae (Family)
 Beauchampiella Luther, 1955 accepted as Beauchampiola Luther, 1957 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Dalyelliidae (Family)

Beaufortia
     Beaufortia Hora, 1932 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Balitoridae (Family)
     Beaufortia R. Brown ex W.T. Aiton, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Beaumontia
     Beaumontia Milne-Edwards & Haime, 1851 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Tabulata (Order) > Micheliniidae (Family)
 Beaumontia Schmid, 1958 accepted as Platycosmoecus Schmid, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Limnephilidae (Family)
     Beaumontia David, 1928 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Eurypterida (Order) > Eurypterida (awaiting allocation) (Family)
 Beaumontia Eudes-Deslongchamps, 1856 † accepted as Eligmus Eudes-Deslongchamps, 1856 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Malleidae (Family)
     Beaumontia N. Wallich, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Beaveria
 Beaveria Osella, 1983 accepted as Beaveriola Osella, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Beaveria Lee, 1965 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Troglotrematidae (Family)
     Beaveria Lane, 1970 accepted as Beaveriella Napp & Martins, 2005 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Bebelis
     Bebelis Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Bebelis Dejean, 1835 accepted as Bebelis Thomson, 1864 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Bebryce
     Bebryce Philippi, 1841 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Acanthogorgiidae (Family)
     Bebryce Thompson, 1844 accepted as Bebryce Thompson, 1844 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Sphaerodoridae (Family)

Beccabunga
     Beccabunga J.P. Fourreau, 1869 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
 Beccabunga J. Hill, 1756 accepted as Veronica Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)

Beccaria
 Beccaria Massee, 1892 accepted as Cymatoderma Junghuhn, 1840 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Panaceae (Family)
 Beccaria Trinchese, 1870 accepted as Caliphylla A. Costa, 1867 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sacoglossa (Order) > Caliphyllidae (Family)
 Beccaria Caporiacco, 1947 accepted as Noegus Simon, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Beccaria Gorham, 1885 accepted as Beccariola Arrow, 1943 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)
     Beccaria Müller Hal., 1872 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
     Beccaria Bourguignat, 1883 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Achatinidae (Family)

Beccariella
 Beccariella Cesati, 1879 accepted as Cymatoderma Junghuhn, 1840 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Panaceae (Family)
     Beccariella Pierre, 1890 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)

Becheria
     Becheria Ohshima, 1936 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Apodida (Order) > Synaptidae (Family)
     Becheria Ridley, 1912 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Beckerella
     Beckerella Enderlein, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chloropidae (Family)
 Beckerella Kylin, 1956 accepted as Ptilophora Kützing, 1847 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gelidiales (Order) > Gelidiaceae (Family)
 Beckerella Axelson, 1912 accepted as Choreutinula Paclt, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Hypogastruridae (Family)
     Beckerella Thiaucourt, 2018 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Beckeria
 Beckeria Bernhardi, 1800 accepted as Melica Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Beckeria Jedlicka, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Beckeria Por, 1985 accepted as Metahuntemannia Smirnov, 1946 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Huntemanniidae (Family)

Beckerina
     Beckerina Wang & Liu in Wang, Liu & Li, 1992 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Beckerina Malloch, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Phoridae (Family)

Beckettia
 Beckettia E. Reid & M.E.J. Chandler, 1933 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cornales (Order) > Cornaceae (Family)
     Beckettia Müller Hal., 1898 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)

Beckia
     Beckia Elenkin, 1933 · Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Chroococcales (Order) > Gomphosphaeriaceae (Family)
     Beckia Bryant, 1968 † accepted as Beckia Bryant, 1968 † (unreplaced junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)
     Beckia Lubbock, 1870 accepted as Cyphoderus Nicolet, 1847 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Entomobryomorpha (Order) > Entomobryidae (Family)

Beckiella
 Beckiella Sæther, 1977 accepted as Beckidia Sæther, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
     Beckiella Grandjean, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Dampfiellidae (Family)

Beckius
     Beckius David, 1946 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Beckius Dechambre, 1992 accepted as Debeckius Allsopp, 2022 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Beckmannia
     Beckmannia Mohanti, 1972 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Hebetoechiidae (Family)
     Beckmannia Host, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Beckwithia
     Beckwithia Resser, 1933 † · Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Aglaspidida (Order) > Aglaspididae (Family)
     Beckwithia Jepson, 1898 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)

Becquerelia
     Becquerelia Brongniart in Duperrey, 1833 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
     Becquerelia Brongniart, 1893 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Palaeodictyoptera (Order) > Spilapteridae (Family)

Beddomea
 Beddomea Dautzenberg, 1900 accepted as Beddomeia Petterd, 1889 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
 Beddomea J.D. Hooker in Bentham & J.D. Hooker, 1862 accepted as Aglaia Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Meliaceae (Family)
     Beddomea Nevill, 1878 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bedelius
 Bedelius Ganglbauer, 1892 accepted as Calathus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Bedelius Jacobson, 1892 accepted as Calathus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Bedfordia
 Bedfordia Fahrenholz, 1936 accepted as Scipio Cummings, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Polyplacidae (Family)
     Bedfordia Mumford, 1942 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
     Bedfordia A.P. de Candolle, 1833 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Bedfordia Kéler, 1938 accepted as Felicola Ewing, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Trichodectidae (Family)

Beeria
     Beeria Hatch, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Beeria Hartig, 1963 accepted as Casama Walker, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Beesha
 Beesha Munro, 1868 accepted as Ochlandra Thwaites, 1864 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Beesha Kunth, 1822 accepted as Melocanna Trinius in K.P.J. Sprengel, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Beesoniella
 Beesoniella Werner, 1935 accepted as Beesonula Uvarov, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Haaniidae (Family)
     Beesoniella Lallemand, 1933 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cercopidae (Family)

Beethovenia
 Beethovenia Engel, 1865 accepted as Ceroxylon Bonpland ex A.P. de Candolle, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
     Beethovenia García-Alcalde, 2014 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Strophomenatida (Order) > Strophodontidae (Family)

Befilaria
     Befilaria Chabaud, Anderson & Brygoo, 1959 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Onchocercidae (Family)
     Befilaria Chabaud, Petter & Golvan, 1961 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)

Beggiatoa
     Beggiatoa Trevisan, 1842 (Approved Lists, 1980) · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Gammaproteobacteria (Class) > Beggiatoales (Order) > Beggiatoaceae (Family)
 Beggiatoa Trevisan, 1845 accepted as Beggiatoa Trevisan, 1842 (Approved Lists, 1980) · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Gammaproteobacteria (Class) > Beggiatoales (Order) > Beggiatoaceae (Family)

Behen
     Behen J. Hill, 1762 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Behen Moench, 1794 accepted as Silene Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Beisselina
     Beisselina Voloshinova & Balakhmatova, 1959 † (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Beisselina Canu, 1913 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Tessaradomidae (Family)

Bekkerella
     Bekkerella Reed, 1936 † (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
 Bekkerella Rosenstein, 1943 † accepted as Heterorthina Bancroft, 1928 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Dalmanellidae (Family)

Bela
     Bela Leach, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Mangeliidae (Family)
     Bela Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Mangeliidae (Family)

Belaria
     Belaria Epstein, 1941 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Belaria Saedeleer, 1934 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Allogromiida (Order) > Lagynidae (Family)

Belciana
     Belciana Walker, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Belciana Walker, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Belebey
     Belebey Aristov, 2015 † accepted as Belebeus Aristov, 2019 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Eoblattida (Order) > Doubraviidae (Family)
     Belebey Ivachnenko, 1973 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Captorhinida (Order) > Bolosauridae (Family)

Belemia
     Belemia J.M. Pires, 1981 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)
 Belemia Español, 1984 accepted as Trichobiopsis White, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)

Belemnita
     Belemnita Rafinesque, 1815 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Belemnita Fleming, 1828 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Belemnites
 Belemnites Gesner, 1758 † accepted as · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Belemnitida (Order) > Passaloteuthidae (Family)
 Belemnites Lamarck, 1799 † accepted as Passaloteuthis Lissajous, 1915 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Belemnitida (Order) > Passaloteuthidae (Family)

Belemnocrinus
     Belemnocrinus White, 1862 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Disparida (Order) > Disparida (awaiting allocation) (Family)
 Belemnocrinus Munier-Chalmas, 1876 † accepted as Belocrinus Munier-Chalmas, 1881 † · Animalia (Kingdom) > Echinodermata (Phylum) > Blastoidea (Class) > Blastoidea (awaiting allocation) (Order) > Blastoidea (awaiting allocation) (Family)

Belemnopsis
     Belemnopsis Edwards in Gray, 1849 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Belemnitida (Order) > Hastatidae (Family)
     Belemnopsis Bayle, 1878 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Belemnus
 Belemnus Roewer, 1932 accepted as Belemnodes Strand, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Manaosbiidae (Family)
 Belemnus Fischer, 1817 accepted as Belemnus Fischer, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Beleogale
     Beleogale Peters, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Herpestidae (Family)
 Beleogale Marshall, 1873 accepted as Beleogale Peters, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Herpestidae (Family)

Belidus
 Belidus Mulsant & Rey, 1879 accepted as Bledius Leach, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Belidus Mulsant & Rey, 1878 accepted as Bledius Leach, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Belinurus
     Belinurus Bronn, 1839 † · Animalia (Kingdom) > Arthropoda (Phylum) > Xiphosura (Class) > Xiphosurida (Order) > Belinuridae (Family)
     Belinurus König, 1825 † accepted as Belinurus Bronn, 1839 † (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Xiphosura (Class) > Xiphosurida (Order) > Belinuridae (Family)

Belisarius
 Belisarius Maupas, 1892 accepted as Viguierella Perrier, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Phyllognathopodidae (Family)
     Belisarius Simon, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Belisariidae (Family)

Bella
 Bella Ihering, 1907 accepted as Bela Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Conidae (Family)
 Bella Pruthi, 1930 accepted as Stirellus Osborn & Ball, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Belladonna
     Belladonna Klimaszewski & Chandler, 2023 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Belladonna (Sweet ex Endlicher) Sweet ex W.H. Harvey, 1838 accepted as Amaryllis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Bellardia
     Bellardia Robineau-Desvoidy, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)
 Bellardia Schreber, 1791 accepted as Coccocypselum P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Bellardia Bucquoy, Dautzenberg & Dollfus, 1883 accepted as Comarmondia Monterosato, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Clathurellidae (Family)
 Bellardia Colla, 1835 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Bellardia Rondani, 1863 accepted as Tabanus Linnaeus, 1758 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)
 Bellardia C. Allioni, 1785 accepted as Bartsia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Orobanchaceae (Family)
 Bellardia Mayer, 1870 † accepted as Bellatara Strand, 1928 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Pachychilidae (Family)

Bellardiella
     Bellardiella Tapparone Canefri, 1883 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Pupinidae (Family)
 Bellardiella P. Fischer, 1883 accepted as Comarmondia Monterosato, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Clathurellidae (Family)

Bellator
     Bellator Jordan & Evermann, 1896 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Triglidae (Family)
 Bellator Burukovsky & Averin, 1976 accepted as Thymopides Burukovsky & Averin, 1977 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Nephropidae (Family)

Bellatrix
     Bellatrix Boie, 1831 accepted as Lophornis Lesson, 1829 (junior subjective synonym)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)
     Bellatrix Mazur, 2011 accepted as Bellatricides Newton, 2017 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Bellerophina
     Bellerophina d'Orbigny, 1843 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bellerophinidae (Family)
     Bellerophina d'Orbigny, 1843, nom. nud. † accepted as Bellerophina d'Orbigny, 1843, nom. nud. † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Atlantidae (Family)

Bellevalia
 Bellevalia J.J. Roemer & J.A. Schultes accepted as Richeria M. Vahl, 1797 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)
     Bellevalia Lapeyrouse, 1808 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
 Bellevalia Scopoli, 1777 accepted as Bellevalia Scopoli, 1777 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
 Bellevalia A.R. Delile ex S.F. Endlicher, 1836 accepted as Althenia Petit, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Potamogetonaceae (Family)

Bellia
     Bellia H. Milne Edwards, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Belliidae (Family)
 Bellia Bate, 1851 accepted as Bellia Bate, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Amphipoda (awaiting allocation) (Family)
 Bellia Tutt, 1902 accepted as Bellia Tutt, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Bellia Gray, 1869 accepted as Siebenrockiella Lindholm, 1929 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Bataguridae (Family)
     Bellia Bubani, 1899 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Bellia V.F. Brotherus in Engler & Prantl, 1907 accepted as Crosbya D.H. Vitt, 1977 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hookeriales (Order) > Hookeriaceae (Family)

Bellidiastrum
 Bellidiastrum C.F. Lessing, 1832 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Bellidiastrum A.H.G. de Cassini, 1816 accepted as Aster Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Bellidiastrum J.A. Scopoli, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bellinurus
 Bellinurus Meek & Worthen, 1865 † accepted as Bellinurus Pictet, 1846 † · Animalia (Kingdom) > Arthropoda (Phylum) > Xiphosura (Class) > Xiphosurida (Order) > Belinuridae (Family)
     Bellinurus Pictet, 1846 † accepted as Belinurus Bronn, 1839 † (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Xiphosura (Class) > Xiphosurida (Order) > Belinuridae (Family)

Bellisporites
 Bellisporites S.A.J. Pocock, 1970 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Bellisporites B. Agrali in B. Agrali et al., 1965 † (uncertain)· Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Bellona
     Bellona Mulsant & Verreaux, 1866 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bellona Giraud, 1860 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Bellona Reichenbach, 1852 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Bellona Lafont, 1871 accepted as Belone Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Beloniformes (Order) > Belonidae (Family)

Bellota
 Bellota C. Gay, 1851-1852 accepted as Ocotea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Lauraceae (Family)
     Bellota Peckham & Peckham, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Bellulia
     Bellulia Fibiger, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Bellulia Wang, Zhou & Zhou, 2016 accepted as Bellulornis Wang, Zhou & Zhou, 2016 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ornithuromorpha incertae sedis (Order) > (Family)

Belmontia
 Belmontia C.G.M. Archibald, 1967 accepted as Anabaena Bory de Saint-Vincent ex Bornet & Flahault, 1886 · Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Nostocaceae (Family)
 Belmontia E.H.F. Meyer, 1838 accepted as Sebaea Solander ex R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
     Belmontia Tillyard, 1919 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mecoptera (Order) > Mecoptera (awaiting allocation) (Family)

Belona
 Belona Le Sueur, 1821 accepted as Belone Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Beloniformes (Order) > Belonidae (Family)
 Belona Weise, 1901 accepted as Cannonia Hincks, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Belonaspis
     Belonaspis Janvier, 1985 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Agnatha (awaiting allocation) (Class) > Agnatha (awaiting allocation) (Order) > Agnatha (awaiting allocation) (Family)
     Belonaspis Haeckel, 1881 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Acantharea (Class) > Arthracanthida (Order) > Dorataspidae (Family)

Belone
     Belone Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Beloniformes (Order) > Belonidae (Family)
 Belone Oken, 1815 accepted as Belone Oken, 1815 · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces incertae sedis (Family)
 Belone Handmann, 1882 accepted as Turritella Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Turritellidae (Family)

Belonella
 Belonella Lane, 1957 accepted as Taonius Steenstrup, 1861 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Oegopsida (Order) > Cranchiidae (Family)
 Belonella accepted as Bellonella Gray, 1862 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Alcyoniidae (Family)

Belonia
 Belonia Carmichael in Hookers, 1833 accepted as Anabaena Bory de Saint-Vincent ex Bornet & Flahault, 1886 · Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Nostocaceae (Family)
     Belonia Körber, 1856 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Gyalectales (Order) > Gyalectaceae (Family)
     Belonia Kirby, 1889 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Libellulidae (Family)
 Belonia Fall, 1899 accepted as Eufallia Muttkowski, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Latridiidae (Family)

Belonidium
     Belonidium Cossmann, 1892 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)
     Belonidium Ehrenberg, 1854 † (uncertain)· Chromista (Kingdom) > Heterokontophyta (Phylum) > (Class) > Bacillariophytina_(awaiting_allocation) (Order) > (Family)
 Belonidium Durieu de Maisonneuve in Durieu de Maisonneuve & Montagne, 1848 accepted as Lachnum Retzius, 1795 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Hyaloscyphaceae (Family)

Beloniella
 Beloniella Th. Fries, 1877 accepted as Belonia Körber, 1856 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Gyalectales (Order) > Gyalectaceae (Family)
 Beloniella H. Rehm, 1892 accepted as Calloria E.M. Fries, 1836 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
 Beloniella (Saccardo) Boudier, 1885 accepted as Odontura F.E. Clements, 1909 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Odontotrematales (Order) > Odontotremataceae (Family)

Belonopsis
     Belonopsis (Saccardo) Rehm, 1891 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Dermateaceae (Family)
 Belonopsis (P.A. Saccardo) P.A. Saccardo & P. Sydow, 1902 accepted as Belonopsis (Saccardo) Rehm, 1891 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Dermateaceae (Family)
 Belonopsis Brandt, 1854 accepted as Nemichthys Richardson, 1848 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Nemichthyidae (Family)

Belonoptera
     Belonoptera Hagen, 1861 accepted as Belonoptera Hagen, 1861 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)
     Belonoptera Herrich-Schäffer, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Thyrididae (Family)

Belophorus
 Belophorus Agassiz, 1846 accepted as Belopherus Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Belophorus Gemminger & Harold, 1872 accepted as Belopherus Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Belophorus Sturm, 1843 accepted as Belopherus Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Belorhynchus
 Belorhynchus Schönherr, 1838 accepted as Belorhynus Guérin-Méneville, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
 Belorhynchus Berthold, 1827 accepted as Nemorhinus Schönherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Belowia
 Belowia J.B. Riding & R. Helby, 2001 † accepted as · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)
     Belowia Moquin-Tandon in Alph. de Candolle, 1849 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Beltrania
 Beltrania F. Miranda, 1957 accepted as Enriquebeltrania J. Rzedowski, 1980 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Beltrania Penzig, 1882 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Amphisphaeriales (Order) > Beltraniaceae (Family)

Beltranosia
     Beltranosia Collado & Alonso-Zarazaga, 1996 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Aderidae (Family)
     Beltranosia Báguena Corella, 1948 accepted as Beltranosia Collado & Alonso-Zarazaga, 1996 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Aderidae (Family)

Beluga
 Beluga Rafinesque, 1815 accepted as Delphinapterus Lacépède, 1804 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Monodontidae (Family)
     Beluga Gmelin, 1774 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Belutschistanops
 Belutschistanops Löbl, Bouchard, Merkl & Bousquet in Iwan & Löbl, 2020 accepted as Hyperops Eschscholtz, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Belutschistanops Koch, 1943 accepted as Belutschistanops Löbl, Bouchard, Merkl & Bousquet in Iwan & Löbl, 2020 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Belvisia
     Belvisia Mirbel in Lamarck & Mirbel, 1802 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Polypodiaceae (Family)
 Belvisia Desvaux, 1814 accepted as Napoleonaea Palisot de Beauvois, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Lecythidaceae (Family)

Bembecidium
 Bembecidium Agassiz, 1847 accepted as Bembidion Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Bembecidium Motschoulsky, 1846 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Bembicidium
 Bembicidium Gemminger & Harold, 1868 accepted as Bembidion Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Bembicidium Rydberg, 1920 accepted as Poitea Ventenat, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Bembidium
 Bembidium Gyllenhal, 1810 accepted as Bembidion Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Bembidium Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Bembix
 Bembix Loureiro, 1790 accepted as Ancistrocladus Wallich, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Ancistrocladaceae (Family)
     Bembix Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)
     Bembix de Koninck, 1844 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Bembix Watson, 1879 accepted as Bathybembix Crosse, 1893 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Calliotropidae (Family)

Beneckeia
 Beneckeia Uhlig, 1882 † accepted as Silesites Uhlig, 1883 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Acanthoceratida (Order) > Silesitidae (Family)
     Beneckeia Mojsisovics, 1882 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)

Benedenia
 Benedenia Schneider, 1875 accepted as Aggregata Frenzel, 1885 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Adeleida (Order) > Aggregatidae (Family)
     Benedenia Foettinger, 1881 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Benedenia Gray, 1864 accepted as Balaenoptera Lacépède, 1804 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Balaenopteridae (Family)
     Benedenia Diesing, 1858 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Capsalidea (Order) > Capsalidae (Family)
     Benedenia Lehrer, 1976 accepted as Sarcophaga Meigen, 1826 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Benedeniella
     Benedeniella Johnston, 1929 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Capsalidea (Order) > Capsalidae (Family)
 Benedeniella Yamaguti, 1958 accepted as Benedeniella Johnston, 1929 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Capsalidea (Order) > Capsalidae (Family)

Benedictia
     Benedictia Dybowski, 1875 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Lithoglyphidae (Family)
     Benedictia Sanderson, 1939 accepted as Warwickia Smith & Evans, 2005 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Bengana
 Bengana Gray, 1834 accepted as Bengala Gray, 1834 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Bengana Gray, 1835 accepted as Cyprinus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Bengtsonella
     Bengtsonella Müller & Hinz, 1991 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodonta (awaiting allocation) (Order) > (Family)
     Bengtsonella Mostler, 1996 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Demospongiae (awaiting allocation) (Order) > Demospongiae (awaiting allocation) (Family)
 Bengtsonella Cooper & Leanza, 2019 † accepted as Bengtsonigonia Ceccolini & Cianferoni, 2021 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Megatrigoniidae (Family)

Benjaminella
     Benjaminella Malloch, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chloropidae (Family)
 Benjaminella I.I. Tavares, 1981 accepted as Benjaminiomyces I.I. Tavares, 2000 · Fungi (Kingdom) > Ascomycota (Phylum) > Laboulbeniomycetes (Class) > Laboulbeniales (Order) > Laboulbeniaceae (Family)

Benjaminia
     Benjaminia S. Ahmad, 1967 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Benjaminia Pidoplichko & Milko, 1971 accepted as Benjaminiella J.A. von Arx, 1981 · Fungi (Kingdom) > Mucoromycota (Phylum) > Mucoromycetes (Class) > Mucorales (Order) > Mucoraceae (Family)
     Benjaminia C.F.P. Martius ex L. Benjamin in C.F.P. Martius, 1847 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)
     Benjaminia Viereck, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Benna
     Benna Walker, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cixiidae (Family)
     Benna X.M. Van der Burgt & M.C. Veranso-Libalah in Van der Burgt et al., 2022 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Bennetia
 Bennetia accepted as Bennettiella Gibson, 1982 · Animalia (Kingdom) > Nemertea (Phylum) > Pilidiophora (Class) > Heteronemertea (Order) > Lineidae (Family)
 Bennetia Rafinesque, 1830 accepted as Sporobolus R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Bennettia
 Bennettia Fowler, 1904 accepted as Lutjanus Bloch, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Lutjanidae (Family)
 Bennettia R. Brown in J.J. Bennett & R. Brown, 1852 accepted as Galearia Zollinger & Moritzi in Moritzi, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Pandaceae (Family)
 Bennettia Clark, 1909 accepted as Cenolia A.H. Clark, 1916 · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Comatulida (Order) > Comasteridae (Family)
 Bennettia Gibson, 1981 accepted as Bennettiella Gibson, 1982 · Animalia (Kingdom) > Nemertea (Phylum) > Pilidiophora (Class) > Heteronemertea (Order) > Lineidae (Family)
     Bennettia S.F. Gray, 1821 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Bennettia Miquel, 1858 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Bennettites
 Bennettites N.A. Bolchovitina, 1959 † accepted as Bennettites N.A. Bolchovitina, 1959 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Bennettites W. Carruthers, 1870 † accepted as Cycadeoidea W. Buckland ex Lindley & W. Hutton, 1832 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadeoideales (Order) > Cycadeoideaceae (Family)

Benoistia
     Benoistia Cossmann, 1900 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Brachytrematidae (Family)
     Benoistia H. Perrier de la Bâthie & J. Léandri in J. Léandri, 1938 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Benoistia Chopard, 1920 accepted as Benoistella Uvarov, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Paragryllidae (Family)

Benoitia
     Benoitia Lehtinen, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)
     Benoitia Pallary, 1938 † accepted as Benoitia Pallary, 1938 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Bensonia
 Bensonia L. Abrams & R. Bacigalupi, 1929 accepted as Bensoniella C.V. Morton, 1965 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)
 Bensonia Gray, 1847 accepted as Laguncula Benson, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Naticidae (Family)
     Bensonia Malaise, 1935 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Bensonia Pfeiffer, 1855 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Ariophantidae (Family)
 Bensonia Buckman in Murchison, 1845 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)
     Bensonia Rossi de Garcia, 1969 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cytherettidae (Family)

Bensteinia
     Bensteinia E.A. Christenson, 2010 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Bensteinia E.A. Christenson, 2006 accepted as Bensteinia E.A. Christenson, 2010 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Benthamara
 Benthamara hort., 1974 accepted as Nashara hort., 1974 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Benthamara L.A. Garay & H.R. Sweet, 1966 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Benthamia
 Benthamia J. Lindley, 1833 accepted as Cornus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cornales (Order) > Cornaceae (Family)
     Benthamia A. Richard, 1828 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Benthocrinus
     Benthocrinus Wanner, 1937 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Benthocrinus Verrill, 1885 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Cladida (Order) > Cladida (awaiting allocation) (Family)

Benthoptilum
     Benthoptilum Verrill, 1885 accepted as Anthoptilum Kölliker, 1880 (junior subjective synonym)· Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Scleralcyonacea (Order) > Anthoptilidae (Family)
 Benthoptilum Verrill, 1885 [2] accepted as Benthoptilum Verrill, 1885 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Scleralcyonacea (Order) > Anthoptilidae (Family)

Benthosaurus
 Benthosaurus Goode & Bean, 1886 accepted as Bathypterois Günther, 1878 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Ipnopidae (Family)
     Benthosaurus Efremov, 1929 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)

Benzingia
     Benzingia C.H. Dodson, 2010 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Benzingia C.H. Dodson, 1995 accepted as Benzingia C.H. Dodson, 2010 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Benzingia C.H. Dodson, 1989 accepted as Benzingia C.H. Dodson, 2010 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Benzoin
 Benzoin Boerhaave ex J.C. Schaeffer, 1760 accepted as Lindera Thunberg, 1783 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Lauraceae (Family)
 Benzoin Hayne, 1830 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Styracaceae (Family)

Bephratoides
     Bephratoides Brues, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eurytomidae (Family)
 Bephratoides Girault, 1913 accepted as Bephratelloides Girault, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eurytomidae (Family)

Bequaertia
     Bequaertia Wilczek, 1956 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)
     Bequaertia Schouteden, 1913 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Bequaertomyia
     Bequaertomyia Séguy, 1937 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Bequaertomyia Brennan, 1935 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Beraea
     Beraea Stephens, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Beraeidae (Family)
     Beraea Stephens, 1833 accepted as Beraea Stephens, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Beraeidae (Family)

Beraeodes
     Beraeodes Eaton, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Beraeidae (Family)
 Beraeodes McLachlan, 1879 accepted as Beraeodes McLachlan, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Beraeidae (Family)

Berardia
     Berardia Villars, 1779 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Berardia A.T. Brongniart, 1826 accepted as Nebelia Necker ex Sweet, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Bruniales (Order) > Bruniaceae (Family)

Berberia
     Berberia De Lesse, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Berberia Berkowski, 2008 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Hapsiphyllidae (Family)

Berberonyx
 Berberonyx Korotyaev, 1993 accepted as Thamiocolus Thomson, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Berberonyx Jeannel, 1956 accepted as Amauronyx Reitter, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Berdura
     Berdura Möschler, 1886 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Berdura Reitter, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Berea
 Berea Péringuey, 1926 accepted as Cyrtomoscelis de Chaudoir, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Berea Yamaguti, 1963 accepted as Bereacanthus Huys, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Chondracanthidae (Family)

Berecyntha
     Berecyntha Gistel, 1834 accepted as Aulacocheilus Chevrolat in Dejean, 1836 (nomen oblitum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Berecyntha Baly, 1865 accepted as Aplosonyx Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Berecynthia
 Berecynthia Gistl, 1848 accepted as Berecynthia Gistl, 1848 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Sphaeronectidae (Family)
     Berecynthia Reichenbach, 1852 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Berendtia
     Berendtia Göppert in Berendt, 1845 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)
     Berendtia Townsend, 1921 † accepted as Novoberendtia Rapp, 1945 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Oestridae (Family)
 Berendtia A. Gray, 1868 accepted as Hemichaena Bentham, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Phrymaceae (Family)
     Berendtia Crosse & Fischer, 1869 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)

Berengeria
 Berengeria Trevisan, 1852-1853 accepted as Rinodina (Acharius) S.F. Gray, 1821 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Caliciales (Order) > Physciaceae (Family)
     Berengeria Gil-Santana & Coletto-Silva, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)

Berenice
 Berenice R.A. Salisbury, 1866 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliales (awaiting allocation) (Family)
     Berenice L.R. Tulasne, 1857 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)
 Berenice Eschscholtz, 1829 accepted as Berenix Péron & Lesueur, 1810 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Berenicidae (Family)

Bergamosoma
     Bergamosoma Hoffman, 1979 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Craspedosomatidae (Family)
     Bergamosoma Verhoeff, 1931 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Bergenia
 Bergenia Necker ex Rafinesque, 1838 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)
     Bergenia Moench, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)
     Bergenia Steindachner, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Bergeretia
     Bergeretia Desvaux, 1815 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Bergeretia Bubani, 1901 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Bergeria
     Bergeria K.B. Presl in Sternberg, 1838 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lycopodiopsida (awaiting allocation) (Order) > Lycopodiopsida (awaiting allocation) (Family)
     Bergeria Kiriakoff, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Bergeriella
     Bergeriella Xie & Yokota, 2005 · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Betaproteobacteria (Class) > Neisseriales (Order) > Neisseriaceae (Family)
     Bergeriella Liu, Shao, Gong, Li, Lin & Song, 2010 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Bergeriellidae (Family)

Bergeronia
     Bergeronia Sun, 1937 † accepted as Bergeronites Sun in Kuo, 1965 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Damesellidae (Family)
     Bergeronia M. Micheli, 1883 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Bergeronia Matthew, 1895 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Berggrenia
     Berggrenia M.C. Cooke, 1879 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pezizales incertae sedis (Family)
     Berggrenia Parker, 1976 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Globigerinida (Order) > Globorotaliidae (Family)

Bergia
     Bergia Bertoni, 1901 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bergia Scott, 1881 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Delphacidae (Family)
 Bergia A.E. Fürnrohr, 1829 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Funariales (Order) > Funariaceae (Family)
 Bergia Steindachner, 1891 accepted as Pseudocorynopoma Perugia, 1891 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)
     Bergia Duchassaing & Michelotti, 1860 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Zoantharia (Order) > Parazoanthidae (Family)
     Bergia Bürger, 1890 · Animalia (Kingdom) > Nemertea (Phylum) > Enopla (Class) > Hoplonemertea (Order) > Drepanophoridae (Family)
     Bergia Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Elatinaceae (Family)

Bergiella
 Bergiella Baker, 1897 accepted as Spangbergiella Signoret, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Bergiella Melichar, 1906 accepted as Peripola Melichar, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Issidae (Family)
 Bergiella Eigenmann & Norris, 1900 accepted as Bergiaria Eigenmann & Norris, 1901 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Pimelodidae (Family)
 Bergiella Stshelkanovtzev, 1907 accepted as Bergiola Stshelkanovtzev, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Bergrothia
     Bergrothia Kraatz, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pseudococcidae (Family)
     Bergrothia Reitter, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Bergrothiella
 Bergrothiella Reitter, 1897 accepted as Bergrothia Reitter, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Bergrothiella Reitter, 1898 accepted as Trionymus Berg, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pseudococcidae (Family)

Beria
     Beria Robineau-Desvoidy, 1830 accepted as Rhyncomya Robineau-Desvoidy, 1830 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhiniidae (Family)
     Beria Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Beringia
 Beringia R.A. Price, I.A. Al-Shehbaz & S.L. O'Kane, 2001 accepted as Crucihimalaya I.A. Al-Shehbaz, S.L. O'Kane & R.A. Price, 1999 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Beringia Perestenko, 1975 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Kallymeniaceae (Family)

Beringiella
     Beringiella J.P. Bujak, 1984 † · Biota incertae sedis (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)
     Beringiella M.J. Wynne, 1980 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)

Beringius
     Beringius Dall, 1886 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)
     Beringius Dall, 1879 accepted as Beringius Dall, 1886 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Berkeleya
 Berkeleya auct. [misspelling] accepted as Berkeleyia Hartman, 1971 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Orbiniida (Order) > Orbiniidae (Family)
     Berkeleya Hartman, 1971 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Orbiniida (Order) > Orbiniidae (Family)
     Berkeleya Greville, 1827 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Bacillariophyceae (Class) > Naviculales (Order) > Berkeleyaceae (Family)

Berkutaspis
     Berkutaspis Lisogor, 1977 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)
     Berkutaspis Lisogor, 1974 † accepted as Berkutaspis Lisogor, 1977 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Berla
     Berla White, 1847 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Berla Bubani, 1900 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Berlandia
 Berlandia Dalmas, 1921 accepted as Berlandina Dalmas, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Gnaphosidae (Family)
     Berlandia Lessert, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Sparassidae (Family)

Berlandiella
     Berlandiella Mello-Leitão, 1929 accepted as Cleocnemis Simon, 1886 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Philodromidae (Family)
     Berlandiella Davis, 1939 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Embiodea (Order) > Embiodea (awaiting allocation) (Family)

Berlepschia
     Berlepschia Bertoni, 1901 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
     Berlepschia Ridgway, 1887 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Furnariidae (Family)

Berlesia
 Berlesia Piersig, 1896 accepted as Lebertia Neumann, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Lebertiidae (Family)
     Berlesia Canestrini, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Laelapidae (Family)

Berlesiella
     Berlesiella Hammer, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Haplozetidae (Family)
 Berlesiella P.A. Saccardo, 1888 accepted as Capronia P.A. Saccardo, 1883 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Chaetothyriales (Order) > Herpotrichiellaceae (Family)

Bernardia
 Bernardia Playfair, 1917 accepted as Lagerheimia (G.B. De Toni, 1889) R. Chodat, 1895 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)
     Bernardia Ashmead, 1891 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coccidae (Family)
     Bernardia P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Bernardia Vianey-Liaud, 1991 † accepted as Burgia Vianey-Liaud, Weppe & Marivaux, 2024 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Theridomyidae (Family)
     Bernardia Pujol-Luz & Lamas, 2023 accepted as Bernardimyia Pujol-Luz & Lamas, 2023 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Nemestrinidae (Family)

Bernardinella
     Bernardinella Pascher, 1922 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Bernardinella R. Chodat, 1921 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Volvocales (Order) > Chlorococcaceae (Family)

Bernardinia
     Bernardinia Preston in Coen, 1945 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Bernardinia J.E. Planchon, 1850 accepted as Rourea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Connaraceae (Family)

Bernayia
     Bernayia Cossmann, 1887 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Bernayia Harris, 1897 accepted as Bernaya Jousseaume, 1884 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cypraeidae (Family)

Bernhardia
 Bernhardia Willdenow ex Bernhardi, 1801 accepted as Psilotum O. Swartz, 1801 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Psilotales (Order) > Psilotaceae (Family)
 Bernhardia T.E. von Post & C.E.O. Kuntze accepted as Bernardia P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Bernhardia Datta & Chaudhuri, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)

Bernia
     Bernia Frederickson, 1949 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)
 Bernia Allred & Beck, 1966 accepted as Hyponeocula Vercammen-Grandjean, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombiculidae (Family)

Bernicla
     Bernicla Oken, 1817 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)
     Bernicla Röding, 1798 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Berniera
 Berniera Fisher, 1903 accepted as Berniera Fisher, 1903 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Berniera A.P. de Candolle, 1838 accepted as Berniera A.P. de Candolle, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bernieria
     Bernieria Bonaparte, 1854 accepted as Bernieria Bonaparte, 1854 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bernieria Pucheran, 1855 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Bernieria Baillon, 1884 accepted as Beilschmiedia C.G.D. Nees in Wallich, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Lauraceae (Family)

Berniniella
     Berniniella Özdikmen, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Oribatellidae (Family)
     Berniniella Balogh, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Oppiidae (Family)

Bernoullia
     Bernoullia D. Oliver, 1873 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Bernoullia O. Heer, 1877 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridophyta/Pteridospermophyta (unclassified foliage) (Class) > Pteridophyta/Pteridospermophyta (awaiting allocation) (Order) > Pteridophytes/Pteridosperms (awaiting allocation) (Family)

Beroe
     Beroe O.F. Müller, 1776 · Animalia (Kingdom) > Ctenophora (Phylum) > Nuda (Class) > Beroida (Order) > Beroidae (Family)
     Beroe Gronov, 1760 accepted as Beroe O.F. Müller, 1776 (unavailable name)· Animalia (Kingdom) > Ctenophora (Phylum) > Nuda (Class) > Beroida (Order) > Beroidae (Family)

Beroides
     Beroides Sepkoski, 2002 † accepted as Serioides Pelman, 1985 † (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Mollusca (Phylum) > Stenothecoida (Class) > Stenothecoidea (Order) > Stenothecoidea (awaiting allocation) (Family)
     Beroides Quoy & Gaimard in de Blainville, 1830 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Berosiris
 Berosiris Pascoe, 1874 accepted as Mechistocerus Fauvel, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Berosiris Lea, 1907 accepted as Dystropicus Pascoe, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Berrya
 Berrya Hoyle, 1939 accepted as Danoctopus Joubin, 1933 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Octopoda (Order) > Octopodidae (Family)
     Berrya Roxburgh, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Berrya Knowlton, 1930 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Berta
     Berta Walker, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Berta Kirkaldy, 1902 accepted as Bertsa Kirkaldy, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Bertella
 Bertella Paetel, 1875 accepted as Berthella Blainville, 1824 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Pleurobranchomorpha (Order) > Pleurobranchidae (Family)
     Bertella Pietsch, 1973 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Oneirodidae (Family)

Bertholdia
 Bertholdia F. Schmitz, 1889 accepted as Schmitzia P.C. Silva, 1959 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Calosiphoniaceae (Family)
     Bertholdia Schaus, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Bertholdia Lagerheim, 1889 accepted as Bertholdia Lagerheim, 1889 (nomen dubium)· Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chaetopeltidales (Order) > Chaetopeltidaceae (Family)

Bertia
     Bertia Ancey, 1887 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Dyakiidae (Family)
     Bertia De Notaris, 1844 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Coronophorales (Order) > Bertiaceae (Family)
 Bertia Blanchard, 1891 accepted as Bertiella Stiles & Hassall, 1902 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)

Bertiella
 Bertiella (P.A. Saccardo) P.A. Saccardo & P. Sydow, 1899 accepted as Massarina P.A. Saccardo, 1883 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Massarinaceae (Family)
     Bertiella Stiles & Hassall, 1902 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)
     Bertiella Gonz. Fragoso & Ciferri, 1926 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Coronophorales (Order) > Bertiaceae (Family)
 Bertiella Ruedemann, 1925 † accepted as Pararenicola Wang, 1983 † · Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > Sinosabelliditida (Order) > Protoarenicolidae (Family)
 Bertiella Kirschstein, 1906 accepted as Nitschkia G.H. Otth ex P.A. Karsten, 1873 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Coronophorales (Order) > Nitschkiaceae (Family)

Bertilia
     Bertilia Reuter, 1913 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Bertilia G.V. Cron, 2013 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bertolonia
 Bertolonia K.P.J. Sprengel, 1820 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)
     Bertolonia Raddi, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
 Bertolonia Spin, 1809 accepted as Bertolonia Spin, 1809 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Bertrandia
 Bertrandia R. Heim, 1936 accepted as Hygrocybe (E.M. Fries) P. Kummer, 1871 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Hygrophoraceae (Family)
     Bertrandia Pic, 1943 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Psephenidae (Family)

Bertrandiella
     Bertrandiella Paredes-León, Klompen & Pérez, 2012 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Pterygosomatidae (Family)
 Bertrandiella R. Heim, 1966 accepted as Lactocollybia Singer, 1939 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Marasmiaceae (Family)

Berus
 Berus Motschoulsky, 1864 accepted as Cymindis Latreille, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Berus Oken, 1816 accepted as Berus Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Viperidae (Family)

Berzelia
     Berzelia A.T. Brongniart, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Bruniales (Order) > Bruniaceae (Family)
     Berzelia C.F.P. Martius, 1825 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Besnoitia
     Besnoitia Franco & Borges, 1916 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Besnoitia Henry, 1913 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Eimeriida (Order) > Sarcocystidae (Family)

Besselia
     Besselia H. Nøhr-Hansen & E.B. Koppelhus, 1988 † (uncertain)· Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Besselia Erman, 1854 accepted as (unassessed)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Mycalidae (Family)

Bessera
 Bessera Vellozo, 1829 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)
 Bessera K.P.J. Sprengel, 1815 accepted as Flueggea Willdenow, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)
     Bessera J.H. Schultes, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
 Bessera J.A. Schultes, 1809 accepted as Bessera J.A. Schultes, 1809 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Bessia
     Bessia Rafinesque, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Bessia Pocock, 1900 accepted as Spiroctenus Simon, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Bemmeridae (Family)

Bestiola
     Bestiola Pulawski & Rasnitsyn in Rasnitsyn, Pulawski & Martinez-Delclos, 1999 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Bestiola Andronov, 1972 accepted as Bestiolina Andronov, 1991 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Paracalanidae (Family)
 Bestiola Nikol'skaya, 1963 accepted as Proaphelinoides Girault, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Aphelinidae (Family)

Beta
     Beta Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
     Beta de Saussure, 1855 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Beta Dalla Torre, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)
     Beta Brunner, 1893 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Beta Dillon & Dillon, 1945 accepted as Pseudobeta Zajciw, 1972 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Betaburmesebuthus
     Betaburmesebuthus Lourenço & Beigel, 2015 † · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Palaeoburmesebuthidae (Family)
     Betaburmesebuthus Xuan, Cai & Huang, 2022 † · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Palaeoburmesebuthidae (Family)

Betaraia
 Betaraia Leigh-Sharpe, 1924 accepted as Raja Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rajidae (Family)
     Betaraia Jordan, 1925 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Bethia
     Bethia de Laubenfels, 1936 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Bethia Sutton, Briggs, Siveter & Siveter, 2005 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Orthida incertae sedis (Family)

Bethyllus
 Bethyllus Cabanis, 1847 accepted as Bethyllus Cabanis, 1847 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Bethyllus Panzer, 1806 accepted as Bethyllus Panzer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Bethylidae (Family)

Bethylus
     Bethylus Cuvier & Dumont, 1816 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bethylus Latreille, 1802 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Bethylidae (Family)

Betousa
 Betousa Walker, 1865 [2] accepted as Bucinna Walker, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Betousa Walker, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Betroka
     Betroka Petersen, 1988 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
     Betroka Viette, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Depressariidae (Family)

Bettonia
     Bettonia Beddard, 1903 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)
     Bettonia Butler, 1898 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Bettonia Waterhouse, 1905 accepted as Brachymitra Kolbe, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Bettonia Whittard, 1956 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)

Bettotania
     Bettotania Miller, 1941 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
     Bettotania Willemse, 1933 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Betula
 Betula Ashmead, 1902 accepted as Betyla Cameron, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Diapriidae (Family)
     Betula Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fagales (Order) > Betulaceae (Family)

Betuloxylon
 Betuloxylon E. Hofmann, 1944 † accepted as Betuloxylon E. Hofmann, 1944 † · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Betuloxylon Kaiser, 1880 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fagales (Order) > Betulaceae (Family)

Beushausenia
     Beushausenia Mailleux, 1913 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Beushausenia Cossmann, 1897 † accepted as Parallelodon Meek & Worthen, 1866 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Parallelodontidae (Family)

Beyeria
     Beyeria Miquel, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Beyeria Fenyes, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Beyrichia
     Beyrichia M'Coy in Griffith, 1846 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Beyrichiidae (Family)
 Beyrichia Chamisso & D.F.L. Schlechtendal, 1828 accepted as Achetaria Chamisso & D.F.L. Schlechtendal, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)
     Beyrichia Boll, 1847 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Beyrichiidae (Family)

Beyrichocrinus
     Beyrichocrinus Jaekel, 1918 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Beyrichocrinus Waagen & Jahn in Barrande, 1899 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Monobathrida (Order) > Monobathrida (awaiting allocation) (Family)

Bezdekia
     Bezdekia Özdikmen & Demir, 2008 accepted as Metagonia Kolbe, 1899 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Bezdekia Warchalowski, 2005 accepted as Colasposoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Bezoardicella
 Bezoardicella Habe, 1961 accepted as Phalium Link, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cassidae (Family)
     Bezoardicella Habe, 1962 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Bezverkhovia
     Bezverkhovia Zolotuhin & Sinyaev, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lasiocampidae (Family)
     Bezverkhovia Gorochov, 2018 accepted as Eubezverkhovia Gorochov & Izerskyy, 2020 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Oecanthidae (Family)

Bhatia
     Bhatia W.A. Baker & G.A. Morgan-Jones in Gams, Seifert & Morgan-Jones, 2009 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Bhatia Distant, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Bhatiella
     Bhatiella Setna, 1932 · Chromista (Kingdom) > Miozoa (Phylum) > Paragregarea (Class) > Velocida (Order) > Lecudinidae (Family)
     Bhatiella D.N. Wanasinghe, E. Camporesi & K.D. Hyde, 2018 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Phaeosphaeriaceae (Family)

Bhawania
 Bhawania accepted as Bhavania Hora, 1920 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Balitoridae (Family)
     Bhawania Schmarda, 1861 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Chrysopetalidae (Family)

Bia
     Bia Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Bia Klotzsch, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Bia Hope, 1840 accepted as Bius Dejean, 1834 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Bia Weise, 1896 accepted as Discomorpha Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Biacantha
     Biacantha Wolfgang, 1954 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Molineidae (Family)
     Biacantha Martynova, 1971 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)

Biacumontia
     Biacumontia Staręga, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Triaenonychidae (Family)
     Biacumontia Lawrence, 1931 accepted as Biacumontia Staręga, 1992 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Triaenonychidae (Family)

Biala
     Biala del Valle & Medina, 1980 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Mesogastropoda (Order) > Mesogastropoda (awaiting allocation) (Family)
     Biala J. Schiller, 1926 (uncertain)· Plantae (Kingdom) > Algae incertae sedis (Phylum) > (Class) > (Order) > (Family)

Biantella
     Biantella Roewer, 1949 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Biantella Roewer, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Biantidae (Family)

Biasolettia
 Biasolettia A. Bertoloni, 1837 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Biasolettia K.B. Presl, 1835 accepted as Hernandia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Hernandiaceae (Family)
 Biasolettia W.D.J. Koch, 1836 accepted as Geocaryum Cosson, 1851 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Biastes
     Biastes Panzer, 1806 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
 Biastes Reichenbach, 1853 accepted as Biatas Cabanis in Cabanis & Heine, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Thamnophilidae (Family)
     Biastes Walker, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)

Biatora
 Biatora Acharius, 1810 accepted as Stenhammarella H. Hertel, 1967 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Pertusariales (Order) > Pertusariaceae (Family)
     Biatora E.M. Fries, 1817 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Ramalinaceae (Family)

Bibia
     Bibia Gray, 1855 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bibia Gray, 1841 accepted as Bibia Gray, 1841 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Bibio
 Bibio Fabricius, 1775 accepted as Thereva Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Therevidae (Family)
     Bibio Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bibionidae (Family)

Bibionus
 Bibionus Rafinesque, 1815 accepted as Thereva Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Therevidae (Family)
     Bibionus Curran, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Blephariceridae (Family)

Biblis
     Biblis Lesson, 1840 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Biblis Lesson, 1837 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Biblis Fabricius, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Bibundia
     Bibundia Poppius, 1914 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Bibundia Bischoff, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachiniscidae (Family)

Bicarina
     Bicarina Jhaveri, 1969 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca incertae sedis (Class) > Gastropoda/Monoplacophora incertae sedis (Order) > Euomphalidae (Family)
     Bicarina García Ramírez, 2018 accepted as Bicarinaus García Ramírez, 2018 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Noteridae (Family)

Bicarinella
     Bicarinella Akopyan, 1976 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Pleurotomariida (Order) > Gosseletinidae (Family)
     Bicarinella Rode, Lieberman & Rowell, 2003 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Bicellaria
 Bicellaria de Blainville, 1830 accepted as Bicellariella Levinsen, 1909 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Bugulidae (Family)
     Bicellaria Macquart, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Hybotidae (Family)

Bicoeca
 Bicoeca Doflein, 1927-29 accepted as Bicosoeca James-Clark, 1866 · Chromista (Kingdom) > Bigyra (Phylum) > Bikosea (Class) > Bicoecida (Order) > Bicosoecidae (Family)
 Bicoeca H. James-Clark, 1866 accepted as Bicosoeca James-Clark, 1866 · Chromista (Kingdom) > Bigyra (Phylum) > Bikosea (Class) > Bicoecida (Order) > Bicosoecidae (Family)

Bicorbula
 Bicorbula Condra & Elias, 1945 † accepted as Bicorbis Condra & Elias, 1945 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Fenestrida (Order) > Polyporidae (Family)
     Bicorbula Fischer, 1887 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Corbulidae (Family)

Bicorium
     Bicorium Meyer, 1880 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bicorium V.P. Maslov, 1956 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Bicornella
     Bicornella Bugrova, 2003 † (uncertain)· Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Oligotrichida (Order) > Oligotrichida (awaiting allocation) (Family)
 Bicornella J. Lindley, 1834 accepted as Cynorkis Du Petit-Thouars, 1809 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Bicornella Coryell & Cuskley, 1934 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Palaeocopida (awaiting allocation) (Family)

Bicorona
     Bicorona Millard, 1966 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Corynidae (Family)
     Bicorona Alph. de Candolle, 1844 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Bicosta
     Bicosta R. Ochyra, 2003 · Plantae (Kingdom) > Bryophyta (Phylum) > Andreaeopsida (Class) > Andreaeales (Order) > Andreaeaceae (Family)
     Bicosta B.S.C. Leadbeater, 1978 · Protozoa (Kingdom) > Choanozoa (Phylum) > Choanoflagellatea (Class) > Acanthoecida (Order) > Acanthoecidae (Family)

Bicrista
 Bicrista O. Kuntze, 1898 accepted as · Chromista (Kingdom) > Heterokontophyta (Phylum) > Phaeophyceae (Class) > Dictyotales (Order) > Dictyotaceae (Family)
     Bicrista Pasteels, 1949 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)

Bidens
     Bidens Fischer, 1814 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Bidens Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Bidens Spix, 1824 accepted as Harpagus Vigors, 1924 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)

Bidentia
     Bidentia Walcott, 1912 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Bidentia Musper, 1920 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Bidentina
 Bidentina Mikhalevich, 1988 accepted as Spiroloculina d'Orbigny, 1826 · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Spiroloculinidae (Family)
     Bidentina Oppenheim, 1895 † accepted as Neomiodon Fischer, 1887 † (junior objective synonym)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Sphaeriida (Order) > Neomiodontidae (Family)

Bidera
     Bidera Krall & Krall, 1973 accepted as Heterodera Schmidt, 1871 (nomen nudum)· Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Heteroderidae (Family)
 Bidera Krall & Krall, 1978 accepted as Heterodera Schmidt, 1871 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Heteroderidae (Family)

Bidigitus
     Bidigitus Valentine, 2005 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Dalmanellidae (Family)
     Bidigitus Smith, 1967 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)

Bielawskia
 Bielawskia Iablokoff-Khnzorian, 1984 accepted as Illeis Mulsant, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
     Bielawskia Marcuzzi, 1985 accepted as Trimytantron Ardoin, 1977 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Bielzia
 Bielzia Verhoeff, 1896 accepted as Entomobielzia Verhoeff, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Entomobielziidae (Family)
     Bielzia Clessin, 1887 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Limacidae (Family)
     Bielzia Schur, 1866 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bietia
 Bietia Oberthur, 1909 accepted as Magos Fletcher in Fletcher & Nye, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)
     Bietia Fairmaire, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Bifaria
     Bifaria M.Y. Belova & V.K. Golovenok, 1999 † · Plantae (Kingdom) > Algae incertae sedis (Phylum) > (Class) > (Order) > (Family)
 Bifaria (Hackel) O. Kuntze, 1898 accepted as Mesosetum Steudel, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Bifaria Van Tieghem, 1896 accepted as Korthalsella Van Tieghem, 1896 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Santalaceae (Family)

Bifida
     Bifida Davidson, 1882 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Anoplothecidae (Family)
 Bifida Stackhouse, 1809 accepted as Rhodophyllis Kützing, 1847 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Cystocloniaceae (Family)

Biflabellum
 Biflabellum Döderlein, 1913 accepted as Monomyces Ehrenberg, 1834 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Flabellidae (Family)
 Biflabellum Oepik, 1935 † accepted as Oepikium Agnew, 1942 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Tetradellidae (Family)

Bifolium
     Bifolium Elliott, 1948 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Thecidellinidae (Family)
 Bifolium Petiver ex Nieuwland, 1913 accepted as Listera R. Brown in W.T. Aiton, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Bifolium P.G. Gaertner, B. Meyer & J. Scherbius, 1799 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)

Bifora
     Bifora G.F. Hoffmann, 1816 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Bifora Agassiz, 1846 accepted as Bifora Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Thaliacea (Class) > Salpida (Order) > Salpidae (Family)

Bifrontia
     Bifrontia Norman, 1872 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Tubeufiales (Order) > Tubeufiaceae (Family)
 Bifrontia Deshayes, 1832 † accepted as Omalaxis Deshayes, 1830 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Omalaxidae (Family)

Bifurca
     Bifurca de Joannis, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Bifurca Fibiger, Zilli & Ronkay, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Bigelovia
 Bigelovia J.E. Smith in Rees, 1819 accepted as Forestiera Poiret in Lamarck, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Oleaceae (Family)
 Bigelovia K.P.J. Sprengel, 1824 accepted as Spermacoce Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Bigelovia K.P.J. Sprengel, 1820 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
 Bigelovia accepted as Bigelowia A.P. de Candolle, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bigelowia
     Bigelowia A.P. de Candolle, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Bigelowia Macdonald & Clench, 1934 accepted as Chiroteuthis d'Orbigny [in Férussac & d'Orbigny], 1841 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Oegopsida (Order) > Chiroteuthidae (Family)
 Bigelowia Rafinesque, 1817 accepted as Bigelowia Rafinesque, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Biggaria
 Biggaria Kahl, 1934 accepted as Biggaria Aescht, 2001 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Cryptochilidae (Family)
     Biggaria Aescht, 2001 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Cryptochilidae (Family)

Biglandularia
     Biglandularia H. Karsten, 1857 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
 Biglandularia B.C. Seemann, 1868 accepted as Sinningia C.G.D. Nees, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Bigotella
     Bigotella Cossmann, 1914 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
 Bigotella Nicolesco, 1916 † accepted as Bigotites Nicolesco, 1918 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)

Bigotinops
     Bigotinops Hupé, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Bigotinidae (Family)
     Bigotinops Hupé, 1952 † accepted as Bigotinops Hupé, 1953 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Bigotinidae (Family)

Bilgramia
     Bilgramia K.S. Panwar, D.K. Purohit & J.S. Chouhan, 1974 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Bilgramia R.N. Yadava, 1990 accepted as Yadavaea J.N. Carpio-Lau, M.E. Mendoza-Tincopa & E.A. Molinari-Novoa, 2016 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Scenedesmaceae (Family)

Bilimbia
 Bilimbia G. De Notaris, 1846 accepted as Mycobilimbia H. Rehm, 1890 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Lecanorales incertae sedis (Family)
 Bilimbia H.G.L. Reichenbach, 1837 accepted as Bilimbia H.G.L. Reichenbach, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Oxalidaceae (Family)

Billardiera
 Billardiera M. Vahl, 1896 accepted as Coussarea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Billardiera J.E. Smith, 1793 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Pittosporaceae (Family)
 Billardiera Moench, 1794 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)

Billbergia
     Billbergia Thunberg, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)
     Billbergia Blackwelder, 1947 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Billingsia
 Billingsia Miller, 1889 † accepted as Matherella Walcott, 1912 † · Animalia (Kingdom) > Mollusca (Phylum) > Helcionelloida (Class) > Onychochiliformes (Order) > Onychochilidae (Family)
     Billingsia Koninck, 1877 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Billingsia Ford, 1886 † accepted as Elkania Ford, 1886 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Elkaniidae (Family)
     Billingsia Walcott, 1886 † accepted as Billingsia Walcott, 1886 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Billingsites
     Billingsites Hyatt, 1884 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ascoceratida (Order) > Ascoceratidae (Family)
     Billingsites Monnet & Bucher, 2005 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Beyrichitidae (Family)

Billotia
 Billotia C.H. Schultz-Bipontinus, 1841 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Billotia R. Brown ex G. Don, 1832 accepted as Agonis (A.P. de Candolle) Sweet, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
     Billotia Schmitz, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Phoridae (Family)

Billya
 Billya Cassini in F. Cuvier, 1825 accepted as Petalacte D. Don, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Billya N. Bethmann ex M.H.J. van der Meer, 2019 accepted as Puybergia M.H.J. van der Meer, 2022 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)

Biloba
 Biloba Stach, 1949 accepted as Neanura Macgillivray, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Neanuridae (Family)
 Biloba Janse, 1954 accepted as Bilobata Vari in Vari & Kroon, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Bilobatus
     Bilobatus Machatschke, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Bilobatus Sieg, 1993 accepted as Siegius Allsopp, 2017 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Apseudidae (Family)

Bilobites
     Bilobites J.E. Dekay, 1824 † · Animalia (Kingdom) > Mollusca (Phylum) > Rostroconchia (Class) > Conocardioida (Order) > Conocardiidae (Family)
 Bilobites Quenstedt, 1869 † accepted as Dicoelosia † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Dicoelosiidae (Family)
     Bilobites Rafinesque, 1831 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Bilyella
 Bilyella Bellamy, 1998 accepted as Bilyesta Bellamy, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Bilyella Majer, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)

Bimulticavea
     Bimulticavea Schafhäutl, 1863 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Bimulticavea d'Orbigny, 1853 † (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)

Bimuria
     Bimuria Ulrich & Cooper, 1942 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Strophomenatida (Order) > Bimuriidae (Family)
     Bimuria D.L. Hawksworth, C.Y. Chea & J.E. Sheridan, 1979 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Didymosphaeriaceae (Family)

Bina
     Bina Shimizu & Alvarado, 2020 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Bina Grishin, 2022 accepted as Neoxeniades Hayward, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)

Binaria
     Binaria Rafinesque, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Binaria Szépligeti, 1904 accepted as Binaria Szépligeti, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Bindera
 Bindera J.G. Agardh, 1841 accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Ceramiaceae (Family)
     Bindera Rafinesque, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Bindera Harvey, 1859 accepted as Webervanbossea G. De Toni, 1936 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Rhodymeniales (Order) > Faucheaceae (Family)

Binderella
     Binderella Roewer, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Assamiidae (Family)
 Binderella F. Schmitz, 1896 accepted as Amphiplexia J.G. Agardh, 1892 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Acrotylaceae (Family)

Bingeria
     Bingeria Martinsson, 1962 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Leperditicopida (Order) > Leperditicopida (awaiting allocation) (Family)
 Bingeria A. Chevalier, 1909 accepted as Turraeanthus Baillon, 1874 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Meliaceae (Family)

Binghamia
 Binghamia Parr, 1937 accepted as Talismania Goode & Bean, 1896 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osmeriformes (Order) > Alepocephalidae (Family)
     Binghamia J.G. Agardh, 1894 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Rhodymeniales (Order) > Lomentariaceae (Family)
 Binghamia Farlow MS accepted as Binghamia J.G. Agardh, 1894 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Rhodymeniales (Order) > Lomentariaceae (Family)
 Binghamia N.L. Britton & J.N. Rose, 1920 accepted as Espostoa N.L. Britton & J.N. Rose, 1920 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
     Binghamia Tutt, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)

Binghamiella
 Binghamiella W.A. Setchell & E.Y. Dawson, 1941 accepted as Binghamia J.G. Agardh, 1894 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Rhodymeniales (Order) > Lomentariaceae (Family)
 Binghamiella Cockerell, 1907 accepted as Callomelitta Smith, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Colletidae (Family)

Binoculus
 Binoculus Demoulin, 1954 accepted as Prosopistoma Latreille, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Prosopistomatidae (Family)
 Binoculus Fourcroy, 1785 accepted as Prosopistoma Latreille, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Prosopistomatidae (Family)
 Binoculus Geoffroy St. Hilaire, 1762 accepted as · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Arguloida (Order) > Argulidae (Family)
 Binoculus von Nordmann, 1832 accepted as Dinemoura Latreille, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Pandaridae (Family)

Binotia
     Binotia Rolfe, 1905 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Binotia Blanchard, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)

Biomyia
     Biomyia Williston, 1908 accepted as Byomya Robineau-Desvoidy, 1830 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Biomyia Schiner, 1868 accepted as Biomya Rondani, 1856 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Biomyia Coquillet, 1897 accepted as Biomya Rondani, 1856 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Bion
     Bion H. Lohmann, 1904 † · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Bion Cambridge, 1898 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Bion Rehn, 1937 accepted as Bionoblatta Rehn, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blaberidae (Family)

Bioppia
 Bioppia Mahunka, 1983 accepted as Ramusella Hammer, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Oppiidae (Family)
 Bioppia Mahunka & Guido Paoletti, 1984 accepted as Ramusella Hammer, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Oppiidae (Family)

Biotia
 Biotia A.P. de Candolle, 1836 accepted as Eurybia (Cassini) Cassini in F. Cuvier, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Biotia Cassini in F. Cuvier, 1825 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bipatinella
     Bipatinella Zheng in Zhen, Zhen, Wan & Xi, 1994 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)
     Bipatinella Chen & Zheng, 1986 † accepted as Tawuia H.J. Hofmann in Hofmann & Aitken, 1979 † (nomen nudum)· Plantae (Kingdom) > Algae incertae sedis (Phylum) > Chuariaphyceae (Class) > Chuariales (Order) > Tawuiaceae (Family)

Bipes
     Bipes de Lacepède, 1788 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Bipes Bonnaterre, 1789 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Bipedidae (Family)

Biphora
 Biphora Bruguière, 1789 accepted as Salpa Forskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Thaliacea (Class) > Salpida (Order) > Salpidae (Family)
     Biphora Bory, 1804 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Biphyllus
     Biphyllus Stephens, 1829 accepted as Biphyllus Dejean, 1821 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Biphyllidae (Family)
     Biphyllus Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Biphyllidae (Family)
     Biphyllus Dejean, 1821 accepted as Biphyllus Stephens, 1830 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Biphyllidae (Family)

Bipinnula
     Bipinnula Commerson ex A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Bipinnula Jordan & Evermann, 1896 accepted as Nesiarchus Johnson, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gempylidae (Family)

Biprocessa
     Biprocessa Li, Li & Xing, 2020 accepted as Neobiprocessa Xing & Li, 2022 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Biprocessa Meng & Yang, 2015 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Biradiolites
     Biradiolites d'Orbigny, 1850 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Hippuritida (awaiting allocation) (Family)
     Biradiolites sensu Toucas, 1909 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Biramus
     Biramus Oswald, 1993 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Hemerobiidae (Family)
     Biramus Waterhouse, 2016 † accepted as Biramus Waterhouse, 2016 † (unreplaced junior homonym)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Condrathyridae (Family)

Biremis
     Biremis D.G. Mann & E.J. Cox in F.E. Round, R.M. Crawford & D.G. Mann, 1990 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Bacillariophyceae (Class) > Naviculales (Order) > Scoliotropidaceae (Family)
     Biremis Polloni, Rowe & Teal, 1973 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Polycirridae (Family)

Birgerbohlinia
     Birgerbohlinia Crusafont-Pairó & Villalta, 1951 † accepted as Birgerbohlinia Crusafont-Pairó & Villalta, 1951 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Birgerbohlinia Crusafont-Pairo, 1952 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Biroella
     Biroella Bolívar, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Biroellidae (Family)
 Biroella Duda, 1925 accepted as Biroina Richards, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)

Birolia
     Birolia Bellardi, 1809 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Elatinaceae (Family)
 Birolia Rafinesque, 1838 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)

Birostrum
     Birostrum Desmoulins, 1827 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Birostrum Bronn, 1837 accepted as Birostrum Bronn, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bischofia
     Bischofia Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)
     Bischofia Hendel, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciomyzidae (Family)

Biscoia
     Biscoia Salmon, 1962 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Hypogastruridae (Family)
 Biscoia † accepted as Briscoia Walcott, 1924 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Dikelocephalidae (Family)

Bisetaria
     Bisetaria Karl, 1943 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Bisetaria Van Tieghem, 1902 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Ochnaceae (Family)

Bisigna
     Bisigna Toll, 1956 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
     Bisigna Falkovitsh, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Coleophoridae (Family)

Bisnius
     Bisnius Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Bisnius Leach, 1832 accepted as Bisnius Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Bisphaera
     Bisphaera Birina, 1948 † · Chromista (Kingdom) > Retaria (Phylum) > Fusulinata (Class) > Fusulinida (Order) > Usloniidae (Family)
     Bisphaera M.S. Yakschin, 1991 † (uncertain)· Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Chroococcales (Order) > Chroococcales (awaiting allocation) (Family)
 Bisphaera Won, 1997 † accepted as Trilonche Hinde, 1899 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Entactinaria (Order) > Entactiniidae (Family)

Bispora
 Bispora Fuckel, 1870 accepted as Bisporella P.A. Saccardo, 1884 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
     Bispora Corda, 1837 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Bissetia
     Bissetia Kapur, 1950 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Bissetia V.F. Brotherus ex M. Fleischer, 1906 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Neckeraceae (Family)

Bistella
     Bistella Fedorov in Fedorov, Parkhaev & Demidenko, 2016 † · Animalia (Kingdom) > Porifera (Phylum) > Heteractinida (Class) > Heteractinellida (Order) > Heterostellidae (Family)
 Bistella Adanson, 1763 accepted as Vahlia Thunberg, 1782 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Vahliales (Order) > Vahliaceae (Family)

Bithecocamara
     Bithecocamara Kozlowski, 1948 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Camaroidea (Order) > Camaroidea (awaiting allocation) (Family)
     Bithecocamara Kozlowski, 1938 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Bithia
     Bithia Robineau-Desvoidy, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Bithia Walker, 1866 accepted as Probithia Warren, 1894 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Bithynella
 Bithynella Guéorguiev, 1976 accepted as Bithyniella Jeannel, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
 Bithynella Fagot, 1886 accepted as Bythinella Moquin-Tandon, 1856 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)

Bithynia
     Bithynia Leach in Abel, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bithyniidae (Family)
 Bithynia Risso, 1826 † accepted as Bithynia Leach in Abel, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bithyniidae (Family)

Bithyniella
 Bithyniella Paetel, 1875 accepted as Bythinella Moquin-Tandon, 1856 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
     Bithyniella Jeannel, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Bithyniphilus
 Bithyniphilus Verhoeff, 1941 accepted as Stenotaenia Koch, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Geophilomorpha (Order) > Geophilidae (Family)
 Bithyniphilus Verhoeff, 1944 accepted as Stenotaenia Koch, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Geophilomorpha (Order) > Geophilidae (Family)

Bitia
     Bitia Gray, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
     Bitia Gray, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Bitomus
     Bitomus de Montfort, 1810 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bitomus Szépligeti, 1910 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Bitta
     Bitta Osuna, 1977 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coreidae (Family)
     Bitta Osuna, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coreidae (Family)

Bittnerella
     Bittnerella Dagis, 1974 † accepted as Brachiobittnerella Ceccolini & Cianferoni, 2022 † (junior homonym)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Thecospirellidae (Family)
     Bittnerella Dall, 1898 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bittneria
     Bittneria Schweitzer & Karasawa, 2004 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Panopeidae (Family)
     Bittneria Broili, 1904 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pterioida (awaiting allocation) (Family)

Bitubichnites
     Bitubichnites Kulkarni & Ghare, 1989 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)
     Bitubichnites Ghare & Kulkarni, 1986 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)

Bituminaria
     Bituminaria Heister ex Fabricius, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Bituminaria C.H. Stirton, 1981 accepted as Bituminaria Heister ex Fabricius, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Bius
     Bius Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Bius Mulsant, 1854 accepted as Bius Dejean, 1834 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Bivetia
 Bivetia Jousseaume, 1887 accepted as Cancellaria Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Cancellariidae (Family)
 Bivetia Jousseaume, 1887 [2] accepted as Bivetiella Wenz in Schindewolf, 1943 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Cancellariidae (Family)

Bivetiella
     Bivetiella Wenz in Schindewolf, 1943 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Cancellariidae (Family)
 Bivetiella Marks, 1949 accepted as Bivetiella Wenz in Schindewolf, 1943 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Cancellariidae (Family)

Bivonia
 Bivonia K.P.J. Sprengel, 1820 accepted as Bernardia P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Bivonia Cocco, 1832 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Phronimidae (Family)
 Bivonia Gray, 1842 accepted as Dendropoma Mörch, 1861 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)

Bizone
     Bizone Lepsi, 1926 (uncertain)· Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)
     Bizone Walker, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Bizone Simon, 1903 accepted as Myrmarachne MacLeay, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Bizonula
     Bizonula Corliss, 1960 (uncertain)· Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)
     Bizonula Pellegrin, 1924 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Bizzozeria
 Bizzozeria Spegazzini, 1889 accepted as Thaxteria P.A. Saccardo, 1891 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Coronophorales (Order) > Nitschkiaceae (Family)
     Bizzozeria P.A. Saccardo & Berlese, 1885 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariales (Order) > Lasiosphaeriaceae (Family)

Blaberus
 Blaberus Schönherr, 1839 accepted as Noxius Jordan, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
     Blaberus Audinet-Serville, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blaberidae (Family)

Blabinotus
 Blabinotus Wollaston, 1854 accepted as Deroplia Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Blabinotus Wollaston, 1862 accepted as Blabinotus Wollaston, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Blabioides
 Blabioides Hampson, 1903 accepted as Zynodes Whalley, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Blabioides Hampson, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Blaborrhinus
 Blaborrhinus Kirby, 1884 accepted as Cylindrothecus Chevrolat, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Blaborrhinus Champion, 1905 accepted as Cylindrothecus Chevrolat, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Blachia
     Blachia Baillon, 1858 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Blachia Walker, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Blackburnia
     Blackburnia J.R. Forster & J.G.A. Forster, 1775 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
     Blackburnia Sharp, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Blackburniella
 Blackburniella Jeannel, 1936 accepted as Eublackburniella Jeannel, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
     Blackburniella Chapin, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)

Blackiella
 Blackiella P. Aellen, 1938 accepted as Atriplex Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Blackiella S.I. Shumenko in B.S. Sokolov, 1987 † accepted as Percivalia Bukry, 1969 † · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Eiffellithales (Order) > Rhagodiscaceae (Family)

Blackwelderioides
     Blackwelderioides Hupé in Piveteau, 1953, nom. nud. † accepted as Blackwelderioides Hupé, 1955 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Dorypygellidae (Family)
     Blackwelderioides Hupé, 1955 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Dorypygellidae (Family)

Blacodes
 Blacodes Kiriakoff, 1959 accepted as Neoblacodes Fletcher in Watson, Fletcher & Nye, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Blacodes Loew, 1874 accepted as Cophura Osten-Sacken, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Blacodes Duponchel in D'Orbigny, 1842 accepted as Blenosia Laporte, 1840 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Blacodes Blanchard, 1845 accepted as Blacodes Duponchel in D'Orbigny, 1842 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Blacodes Dejean, 1834 accepted as Blacodes Duponchel in D'Orbigny, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Blagorrhina
     Blagorrhina Hippa, Mattsson & Vilkamaa, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Lygistorrhinidae (Family)
 Blagorrhina Hippa, Mattsson & Vilkamaa, 2005 accepted as Blagorrhina Hippa, Mattsson & Vilkamaa, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Lygistorrhinidae (Family)

Blainvillea
 Blainvillea Dall, 1898 accepted as Blainvillea Dall, 1898 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
 Blainvillea Quatrefages, 1866 accepted as Lysidice Lamarck, 1818 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Eunicida (Order) > Eunicidae (Family)
     Blainvillea Cassini in F. Cuvier, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Blainvillia
 Blainvillia Hupé in Gay, 1854 accepted as Clementia Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
     Blainvillia Robineau-Desvoidy, 1830 accepted as Hydrotaea Robineau-Desvoidy, 1830 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Blainvillia Robineau-Desvoidy, 1830 [2] accepted as Otites Latreille, 1804 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ulidiidae (Family)

Blairella
     Blairella Miller & Gurley, 1896 † accepted as Rhipidomella Oehlert, 1890 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Rhipidomellidae (Family)
     Blairella Rasetti, 1965 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariidae (Family)

Blakea
     Blakea Grote, 1875 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Blakea Steindachner, 1876 accepted as Gibbonsia Cooper, 1864 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Clinidae (Family)
     Blakea P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Blakeia
     Blakeia Kiriakoff, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
     Blakeia Langeneck, Barbieri, Maltagliati & Castelli, 2019 accepted as Aricidea Webster, 1879 (junior homonym)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Cirratulida (Order) > Paraonidae (Family)

Blakwellia
 Blakwellia J. Gaertner, 1790 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Blakwellia Commerson ex A.L. Jussieu, 1789 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
     Blakwellia Scopoli, 1777 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)
 Blakwellia Lamarck, 1785 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Blanchardia
     Blanchardia Buchecker, ? 1880 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Blanchardia Ortego, Nieto Nafria & Mier Durante, 1997 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
     Blanchardia Wierzejski, 1890 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Blanchardia Gedroyc, 1915 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Hirudinoidea (awaiting allocation) (Order) > Hirudinoidea (awaiting allocation) (Family)
 Blanchardia Blatchley, 1910 † accepted as Blatchleya Knab, 1910 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Omethidae (Family)
 Blanchardia Castelnau, 1875 accepted as Notograptus Günther, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Plesiopidae (Family)
 Blanchardia Brongniart, 1893 † accepted as Triplosoba Handlirsch, 1906 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Triplosobidae (Family)
     Blanchardia M.M. Hanes & R.L. Barrett in Hanes et al., 2024 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Blanchardiella
     Blanchardiella Weber, 1914 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Arhynchobdellida (Order) > Cylicobdellidae (Family)
     Blanchardiella Poppius, 1921 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Blanchardina
     Blanchardina Labbé, 1899 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Blanchardina Viette, 1950 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hepialidae (Family)

Blancoa
 Blancoa Blume, 1843 accepted as Arenga Labillardière in A.P. de Candolle, 1800 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
 Blancoa Blume, 1849 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
     Blancoa Huber, 2000 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pholcidae (Family)
     Blancoa J. Lindley, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Commelinales (Order) > Haemodoraceae (Family)

Blandfordia
 Blandfordia Tate, 1894 accepted as Blanfordia A. Adams, 1863 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Pomatiopsidae (Family)
     Blandfordia J.E. Smith, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Blandfordiaceae (Family)
 Blandfordia H.C. Andrews, 1804 accepted as Blandfordia H.C. Andrews, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Diapensiaceae (Family)

Blanfordia
     Blanfordia Uhlig, 1905 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Blanfordia Duncan, 1880 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Blanfordia A. Adams, 1863 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Pomatiopsidae (Family)

Blanfordiceras
     Blanfordiceras Cossmann, 1907 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Blanfordiceras Spath, 1924 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Blapstinus
     Blapstinus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Blapstinus Sturm, 1826 accepted as Blapstinus Dejean, 1821 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Blapstinus Eschscholtz in Mannerheim, 1843 accepted as Blapstinus Dejean, 1821 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Blaria
 Blaria Gray, 1843 accepted as Blarina Gray, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Soricomorpha (Order) > Soricidae (Family)
     Blaria Gray, 1842 accepted as Blaria Gray, 1842 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Blasipus
     Blasipus Bonaparte, 1853 accepted as Blasipus Bonaparte, 1853 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Blasipus Bruch, 1853 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Blastoceras
 Blastoceras Fitzinger, 1860 accepted as Blastocerus Wagner in Schreber, 1844 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
 Blastoceras Flower & Caster, 1935 † accepted as Blastocerina Flower, 1940 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Oncocerida (Order) > Brevicoceratidae (Family)

Blastocystis
     Blastocystis Aléxéieff, 1911 · Chromista (Kingdom) > Bigyra (Phylum) > Blastocystea (Class) > Blastocystida (Order) > Blastocystidae (Family)
     Blastocystis Jaekel, 1918 † accepted as Astroblastocystis Sałamatin & Kaczmarek, 2022 † (junior homonym)· Animalia (Kingdom) > Echinodermata (Phylum) > Edrioblastoidea (Class) > (Order) > Astroblastocystidae (Family)

Blastomyces
     Blastomyces Gilchrist & W.R. Stokes, 1898 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Onygenales (Order) > Ajellomycetaceae (Family)
     Blastomyces J.N. Costantin & Rolland, 1888 accepted as Chrysosporium Corda in Sturm, 1833 (nomen rejiciendum)· Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Onygenales (Order) > Onygenaceae (Family)

Blastophagus
 Blastophagus Gravenhorst, 1827 accepted as Blastophaga Gravenhorst, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Agaonidae (Family)
 Blastophagus Eichhoff, 1864 accepted as Myelophilus Eichhoff, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Blastophysa
     Blastophysa Reinke, 1889 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Chaetosiphonaceae (Family)
     Blastophysa Riley, 1884 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Blastosmilia
 Blastosmilia Duncan, 1878 accepted as Pourtalosmilia Duncan, 1884 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Caryophylliidae (Family)
     Blastosmilia Étallon, 1859 † · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Scleractinia (awaiting allocation) (Family)

Blastosporidium
 Blastosporidium M. Hartmann, 1912 accepted as Coccidioides Stiles in Rixford & Gilchrist, 1896 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Onygenales (Order) > Onygenaceae (Family)
     Blastosporidium Hartman & Schoo, 1914 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Blastus
     Blastus Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
 Blastus Leach, 1814 accepted as Pisa Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)

Blaszakia
     Blaszakia Koçak & Kemal, 2008 accepted as Blaszakzercon Kemal & Koçak, 2009 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Zerconidae (Family)
     Blaszakia Skoracki & Sikora, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Syringophilidae (Family)

Blatta
     Blatta Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattidae (Family)
 Blatta Serville, 1831 accepted as Blattella Caudell, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Ectobiidae (Family)

Blattaria
     Blattaria Weyenbergh, 1874 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
 Blattaria O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Blattaria P. Miller, 1754 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
     Blattaria Voet, 1806 accepted as (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Blatticida
 Blatticida Girault, 1915 accepted as Blatticidella Gahan & Fagan, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
     Blatticida Ashmead, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Blatticidella
     Blatticidella Gahan & Fagan, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
 Blatticidella Girault, 1923 accepted as Epiblatticida Girault, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Blattidium
     Blattidium Goldenberg, 1877 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Blattidium Westwood, 1854 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Blattidium Heer, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Blattina
     Blattina Germar, 1813 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Archimylacridae (Family)
 Blattina Hebard, 1929 accepted as Hebardina Bey-Bienko, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattidae (Family)

Blattodeaphagus
     Blattodeaphagus Kathirithamby, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Strepsiptera (Order) > Halictophagidae (Family)
     Blattodeaphagus Kathirithamby, 1989 accepted as Blattodeaphagus Kathirithamby, 1992 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Strepsiptera (Order) > Halictophagidae (Family)

Blax
 Blax Loew, 1872 accepted as Blacodes Loew, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Blax Koch in Herrich-Schaefer, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)
     Blax Reichenow, 1894 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Piciformes (Order) > Picidae (Family)
 Blax Thomson, 1860 accepted as Blaxotes McKeown, 1945 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Blax Candèze, 1863 accepted as Metablax Candèze in Harold, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Blediodes
 Blediodes Mulsant & Rey, 1879 accepted as Bledius Leach, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Blediodes Mulsant & Rey, 1878 accepted as Bledius Leach, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Bleekeria
     Bleekeria Günther, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Ammodytidae (Family)
 Bleekeria Miquel, 1859 accepted as Alchornea O. Swartz, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Bleekeria Hasskarl, 1855 accepted as Ochrosia A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Blemus
 Blemus Stephens, 1827 accepted as Blemus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Blemus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Blemus LeConte, 1848 accepted as Blemus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Blennioclinus
     Blennioclinus Gill, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Clinidae (Family)
     Blennioclinus Smith, 1946 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Clinidae (Family)

Blennocampa
     Blennocampa Harris, 1841 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Blennocampa Hartig, 1837 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Blennophis
 Blennophis Valenciennes in Webb & Berthelot, 1843 accepted as Ophioblennius Gill, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Blenniidae (Family)
     Blennophis Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Clinidae (Family)

Blennus
     Blennus Walbaum, 1792 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Blennus Klein, 1779 accepted as Blennius Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Blenniidae (Family)

Blepharella
     Blepharella Macquart, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Blepharella Medvedev, 2000 accepted as Neoblepharella Özdikmen, 2008 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Blepharida
     Blepharida Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Blepharida Rogers, 1856 accepted as Blepharida Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Blepharidia
 Blepharidia Püngeler, 1900 accepted as Blepharosis Boursin, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Blepharidia Hübner, 1822 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Blepharipoda
     Blepharipoda Brauer & Bergenstamm, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Blepharipoda Randall, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Blepharipodidae (Family)

Blepharis
     Blepharis A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Blepharis Audinet-Serville, 1831 accepted as Blepharopsis Rehn, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Empusidae (Family)
     Blepharis Macquart, 1838 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Blepharis Cuvier, 1816 accepted as Alectis Rafinesque, 1815 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)

Blepharisma
     Blepharisma Perty, 1849 · Chromista (Kingdom) > Ciliophora (Phylum) > Heterotrichea (Class) > Heterotrichida (Order) > Blepharismidae (Family)
 Blepharisma Hirshfield, Isquith & Bhandary, 1965 accepted as Blepharisma Perty, 1849 · Chromista (Kingdom) > Ciliophora (Phylum) > Heterotrichea (Class) > Heterotrichida (Order) > Blepharismidae (Family)

Blepharocera
     Blepharocera Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Blephariceridae (Family)
 Blepharocera Chambers, 1877 † accepted as Chambersia Riley in Smith, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Blepharolepis
 Blepharolepis C.G.D. Nees, 1843 accepted as Scirpus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
     Blepharolepis C.G.D. Nees in J. Lindley, 1836 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)

Blepharonia
     Blepharonia Hübner, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Blepharonia Bernhauer, 1928 accepted as Zyras Stephens, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Blepharopoda
     Blepharopoda Enderlein, 1936 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Blepharopoda Stimpson, 1857 accepted as Lophomastix Benedict, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Blepharipodidae (Family)
 Blepharopoda Oldenberg, 1904 accepted as Blepharipoda Brauer & Bergenstamm, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Blepharopoda Rondani in Osculati, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Blepharopsis
 Blepharopsis P.G. Efimov, 2009 accepted as Platanthera L.C. Richard, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Blepharopsis Rehn, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Empusidae (Family)

Blepharopus
     Blepharopus Kolenati, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Hydropsychidae (Family)
 Blepharopus Agassiz, 1846 accepted as Blepharopus Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Blepharostoma
     Blepharostoma (Dumortier) Dumortier, 1835 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Jungermanniales (Order) > Pseudolepicoleaceae (Family)
     Blepharostoma Schewiakoff, 1891 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Hymenostomatida (Order) > Tetrahymenidae (Family)

Blepharum
 Blepharum Hübner, 1809-1813 accepted as Blepharum Hübner, 1809-1813 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Blepharum Thomson, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Blera
 Blera Walker, 1862 accepted as Sericochroa Felder, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
     Blera Billberg, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Blethisa
     Blethisa Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Blethisa Dejean, 1826 accepted as Blethisa Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Blitum
 Blitum J. Hill, 1757 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Blitum Heister ex Fabricius, 1759 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Blitum Scopoli, 1772 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Blitum Linnaeus, 1753 accepted as Chenopodium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Blodgettia
     Blodgettia Hahn & Hahn, 1992 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Trilobitomorpha (awaiting allocation) (Order) > Trilobitomorpha (awaiting allocation) (Family)
     Blodgettia Harvey, 1858 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycotina incertae sedis (Class) > (Order) > (Family)
 Blodgettia E.P. Wright, 1881 accepted as Blodgettia Harvey, 1858 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycotina incertae sedis (Class) > (Order) > (Family)

Blomella
     Blomella Kozur, 1973 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Blomella Sugiyama, 1997 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Blomia
     Blomia Sennikov, 1992 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Thecodontia (Order) > Thecodontia (awaiting allocation) (Family)
     Blomia F. Miranda, 1953 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
     Blomia Oudemans, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Echimyopodidae (Family)

Blumea
     Blumea A.P. de Candolle, 1833 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Blumea H.G.L. Reichenbach, 1829 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Blumenbachia
     Blumenbachia H.A. Schrader, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cornales (Order) > Loasaceae (Family)
 Blumenbachia G.L. Koeler, 1802 accepted as Sorghum Moench, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Blumia
     Blumia Robineau-Desvoidy, 1863 accepted as Phryxe Robineau-Desvoidy, 1830 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Blumia K.P.J. Sprengel, 1826 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Actinidiaceae (Family)
 Blumia C.G.D. Nees, 1825 accepted as Blumia C.G.D. Nees, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Magnoliaceae (Family)

Blythia
     Blythia Theobald, 1868 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Blythia Talwar, 1971 accepted as Johnius Bloch, 1793 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sciaenidae (Family)

Blyttia
 Blyttia E.M. Fries, 1839 accepted as Cinna Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Blyttia Arnott in Jardine & Johnston, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Boana
 Boana Walker, 1862 accepted as Naboa Nye, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Boana Gray, 1825 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)

Boarmia
     Boarmia Treitschke, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Boarmia Stephens, 1829 accepted as Ectropis Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Bobartia
     Bobartia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Bobartia Ker-Gawler, 1827 accepted as Bobartia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Bobinella
     Bobinella d'Hondt, 1981 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Candidae (Family)
     Bobinella Andreeva, 1968 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Pentamerida (Order) > Tetralobulidae (Family)

Bobrovia
 Bobrovia A.P. Khokhrjakov, 1998 accepted as Trifolium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Bobrovia P.N. Kolosov, 1975 † (uncertain)· Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Cyanophyceae (awaiting allocation) (Order) > Cyanophyceae (awaiting allocation) (Family)

Boca
     Boca Vellozo, 1829 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
     Boca Lowry & Stoddart, 1997 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Aristiidae (Family)

Bocana
     Bocana Walker, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Bocana Walker, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Bockia
     Bockia Scopoli, 1777 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
     Bockia Hecker, 1938 † · Animalia (Kingdom) > Echinodermata (Phylum) > Eocrinoidea (Class) > Eocrinoidea (awaiting allocation) (Order) > Eocrinoidea (awaiting allocation) (Family)
     Bockia Reisinger, 1924 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Typhloplanidae (Family)

Bocquetia
     Bocquetia Pawlik, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Akentrogonida (Order) > Chthamalophilidae (Family)
     Bocquetia Ş. Yıldırımlı, 2021 accepted as Gelasia Cassini, 1818 (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bodeniella
     Bodeniella Ivanova † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Palaeocopida (awaiting allocation) (Family)
     Bodeniella Melnikova, 2020 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Richinidae (Family)

Bodianus
     Bodianus Bloch, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Labridae (Family)
     Bodianus Cuvier, 1817 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Bodinia
 Bodinia M. Ota & M. Langeron, 1923 accepted as Trichophyton Malmsten, 1848 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Onygenales (Order) > Arthrodermataceae (Family)
     Bodinia George, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Argestidae (Family)

Boea
     Boea Commerson ex Lamarck, 1785 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Boea Walker, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Boeckhia
     Boeckhia Kunth, 1841 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Restionaceae (Family)
     Boeckhia Szabo, 1982 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Boeckia
     Boeckia Malm, 1870 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Amphipoda (awaiting allocation) (Family)
     Boeckia Brögger, 1882 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Cheiruridae (Family)
     Boeckia Pillet, 1965 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
 Boeckia Brady, 1872 accepted as Herrmannella Canu, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Lichomolgidae (Family)
 Boeckia Grimm in G.O. Sars, 1894 accepted as Axelboeckia Stebbing, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Gammaridae (Family)
 Boeckia Thomson, 1883 accepted as Boeckella Guerne & Richard, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Centropagidae (Family)

Boehmia
     Boehmia Hoek, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Pycnogonida (Class) > Pantopoda (Order) > Ascorhynchidae (Family)
     Boehmia Kutassy, 1940 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Boehmia Raddi, 1806 accepted as Arrhenia E.M. Fries, 1849 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Lichenomphaliaceae (Family)
 Boehmia Cossmann, 1902 † accepted as Boehmiola Strand, 1928 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Heterostrophia (awaiting allocation) (Family)

Boeria
     Boeria Hedqvist, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
     Boeria Kirkaldy, 1908 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Boerlagella
 Boerlagella Cogniaux in Alph. de Candolle & A.C. de Candolle, 1891 accepted as Planchonella Pierre, 1890 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
 Boerlagella Penzig & P.A. Saccardo, 1897 accepted as Boerlagiomyces F. Butzin, 1977 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Tubeufiales (Order) > Tubeufiaceae (Family)

Boerneria
     Boerneria Willem, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)
     Boerneria Grassi & Foà, 1908 accepted as Foaiella Börner, 1909 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Phylloxeridae (Family)

Boethus
 Boethus Thorell, 1878 accepted as Spartaeus Thorell, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Boethus Förster, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Boettcheria
 Boettcheria Hoscheck, 1931 accepted as Obenbergerula Strand, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Boettcheria Parker, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
 Boettcheria Willemse, 1932 accepted as Bacuita Strand, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Boettgeria
     Boettgeria Böttger, 1863 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
 Boettgeria Peyrot, 1931 † accepted as Boettgeriola Wenz in Schindewolf, 1943 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Borsoniidae (Family)

Bogatschevia
     Bogatschevia Jatsko, 1962 † accepted as Bogatschevia Jatsko, 1962 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Bogatschevia Jatsko, 1972 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Bogatschevia Ali-Zade & Kabakova in Ali-Zade, 1969 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Bogdaichthys
     Bogdaichthys Su, 1980 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Actinopterygii (awaiting allocation) (Order) > Actinopterygii (awaiting allocation) (Family)
     Bogdaichthys Su, 1985 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Actinopterygii (awaiting allocation) (Order) > Actinopterygii (awaiting allocation) (Family)

Bogoda
 Bogoda Blyth, 1860 accepted as Priacanthus Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Priacanthidae (Family)
 Bogoda Bleeker, 1853 accepted as Chanda Hamilton, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Ambassidae (Family)

Bogoriella
     Bogoriella Groth, Schumann, Rajney, Martin, Schuetze & Augsten, 1997 · Bacteria (Kingdom) > Actinomycetota (Phylum) > Actinomycetes (Class) > Micrococcales (Order) > Bogoriellaceae (Family)
     Bogoriella A. Zahlbruckner, 1928 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Trypetheliales (Order) > Trypetheliaceae (Family)

Bohadschia
     Bohadschia Crantz, 1762 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Bohadschia K.B. Presl, 1835 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Passifloraceae (Family)
 Bohadschia F.W. Schmidt, 1795 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Bohadschia Hrabe, 1971 accepted as Limnodriloides Pierantoni, 1904 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)
     Bohadschia Jaeger, 1833 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Holothuriida (Order) > Holothuriidae (Family)

Bohemanella
     Bohemanella Ramme, 1951 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Bohemanella DeLong & Freytag, 1972 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Bohemania
     Bohemania Stål, 1855 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Bohemania Gemminger & Harold, 1868 accepted as Bohemania Gemminger & Harold, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Bohemania Robineau-Desvoidy, 1863 accepted as Uromyia Meigen, 1838 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Bohemania Putzeys, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Bohemannia
     Bohemannia Bezzi in Becker-Kertész, 1907 accepted as Bohemania Robineau-Desvoidy, 1863 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Bohemannia Stainton, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nepticulidae (Family)
 Bohemannia Putzeys, 1863 accepted as Bohemaniella Bousquet, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Bohemicocrinus
     Bohemicocrinus Waagen & Jahn in Barrande, 1899 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Monobathrida (Order) > Monobathrida (awaiting allocation) (Family)
     Bohemicocrinus Jahn, 1893 † accepted as Bohemicocrinus Waagen & Jahn in Barrande, 1899 † (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Monobathrida (Order) > Monobathrida (awaiting allocation) (Family)

Bohemilla
 Bohemilla Vejdovský, 1884 accepted as Vejdovskyella Michaelsen, 1903 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)
     Bohemilla Barrande, 1872 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)

Bohemina
     Bohemina Lyashenko, 1969 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cricoconarida (Class) > Cricoconarida (awaiting allocation) (Order) > Cricoconarida (awaiting allocation) (Family)
     Bohemina Snajdr, 1951 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Tricorninidae (Family)

Bohlinia
     Bohlinia Lemmermann, 1899 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)
     Bohlinia Matthew, 1929 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Giraffidae (Family)

Bohmia
 Bohmia Cossmann, 1902 † accepted as Boehmiola Strand, 1928 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Heterostrophia (awaiting allocation) (Family)
 Bohmia Hoek, 1881 accepted as Boehmia Hoek, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Pycnogonida (Class) > Pantopoda (Order) > Ammotheidae (Family)
 Bohmia Kutassy in Quendstedt, 1940 † accepted as Boehmia Kutassy, 1940 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Böhmia
 Böhmia Kutassy in Quendstedt, 1940 † accepted as Boehmia Kutassy, 1940 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Böhmia Hoek, 1881 accepted as Boehmia Hoek, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Pycnogonida (Class) > Pantopoda (Order) > Ammotheidae (Family)
 Böhmia Cossmann, 1902 † accepted as Boehmiola Strand, 1928 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Heterostrophia (awaiting allocation) (Family)

Boholia
     Boholia Kossmann, 1872 accepted as Boholia Kossmann, 1872 (nomen dubium)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Lichomolgidae (Family)
     Boholia Merrill, 1926 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Boisduvalia
     Boisduvalia Signoret, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pseudococcidae (Family)
     Boisduvalia Robineau-Desvoidy, 1830 accepted as Boisduvalia Robineau-Desvoidy, 1830 (taxon inquirendum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Platystomatidae (Family)
 Boisduvalia Spach, 1835 accepted as Epilobium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Onagraceae (Family)
     Boisduvalia Montrouzier, 1855 accepted as Boisduvallia Montrouzier, 1855 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Boisduvalia Houlbert in Oberthuer, 1918 accepted as Duboisvalia Oiticica Filho, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Castniidae (Family)
     Boisduvalia Signoret, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Boisduvallia
     Boisduvallia Montrouzier, 1855 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Boisduvallia accepted as Boisduvalia Spach, 1835 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Onagraceae (Family)

Boivinella
 Boivinella (Pierre ex Baillon) Aubréville & Pellegrin, 1958 accepted as Englerophytum K. Krause, 1914 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
 Boivinella A. Camus, 1925 accepted as Cyphochlaena Hackel, 1901 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Bojeria
     Bojeria Rafinesque, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)
 Bojeria A.P. de Candolle, 1836 accepted as Inula Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bokkeveldia
     Bokkeveldia Ruta & Theron, 1997 † · Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Mitrata (Order) > Mitrata (awaiting allocation) (Family)
     Bokkeveldia D. Müller-Doblies & U. Müller-Doblies, 1985 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Bola
 Bola Günther, 1868 accepted as Raiamas Jordan, 1919 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Bola Hamilton, 1822 accepted as Johnius Bloch, 1793 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sciaenidae (Family)

Bolaspidellus
     Bolaspidellus Lazarenko in Lazarenko & Nikiforov, 1968 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Bolaspidellus Lazarenko & Datsenko, 1967 † accepted as Bolaspidellus Lazarenko & Datsenko, 1967 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Bolax
     Bolax Fischer, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Bolax Commerson ex A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Bolbella
     Bolbella Giglio-Tos, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Chroicopteridae (Family)
     Bolbella Cobb, 1920 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Oncholaimida (Order) > Enchelidiidae (Family)

Bolbidium
 Bolbidium (Lindley) F.G. Brieger in R. Schlechter, 1981 accepted as Dendrobium O. Swartz, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Bolbidium (Lindley) Lindley, 1846 accepted as Maxillaria Ruiz & Pavon, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Bolbocephalus
 Bolbocephalus Dubois, 1934 accepted as Bolbocephalodes Strand, 1935 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Strigeidida (Order) > Bolbocephalodidae (Family)
 Bolbocephalus Kolbe, 1916 accepted as Bolbocranius Kolbe, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Bolbocephalus Whitfield, 1890 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Bathyuridae (Family)

Bolboceras
 Bolboceras Kirby, 1819 accepted as Odonteus Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Geotrupidae (Family)
     Bolboceras Fischer de Waldheim, 1844 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bolbocranius
     Bolbocranius Kolbe, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Bolbocranius Kolbe, 1916 accepted as Bolbocranius Kolbe, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Bolboporites
     Bolboporites Pander, 1830 † · Animalia (Kingdom) > Echinodermata (Phylum) > Eocrinoidea (Class) > Eocrinoidea (awaiting allocation) (Order) > Eocrinoidea (awaiting allocation) (Family)
     Bolboporites Billings, 1859 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Anthozoa (awaiting allocation) (Order) > (Family)

Bolborhynchus
     Bolborhynchus Bonaparte, 1857 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Psittaciformes (Order) > Psittacidae (Family)
     Bolborhynchus Bonaparte, 1857, nom. nud. accepted as Bolborhynchus Bonaparte, 1857 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Psittaciformes (Order) > Psittacidae (Family)
 Bolborhynchus Achmerov & Achmerova, 1941 accepted as Bolborhynchoides Achmerow & Dombrovskaja, 1959 · Animalia (Kingdom) > Acanthocephala (Phylum) > Palaeacanthocephala (Class) > Echinorhynchida (Order) > Hypoechinorhynchidae (Family)
 Bolborhynchus Porta, 1906 accepted as Bolbosoma Porta, 1908 · Animalia (Kingdom) > Acanthocephala (Phylum) > Palaeacanthocephala (Class) > Polymorphida (Order) > Polymorphidae (Family)

Bolbozoe
     Bolbozoe Barrande in Bigsby, 1868 † accepted as Bolbozoe Barrande, 1872 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Myodocopida (Order) > Myodocopida (awaiting allocation) (Family)
     Bolbozoe Barrande, 1872 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Myodocopida (Order) > Bolbozoidae (Family)

Boldia
     Boldia W.R. Herndon, 1964 · Plantae (Kingdom) > Rhodophyta (Phylum) > Compsopogonophyceae (Class) > Compsopogonales (Order) > Boldiaceae (Family)
     Boldia van Bellen, 1946 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Gavelinellidae (Family)

Boldoa
     Boldoa Cavanilles ex Lagasca, 1816 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)
 Boldoa Endlicher, 1841 accepted as Peumus Molina, 1782 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Monimiaceae (Family)

Boldu
 Boldu Adanson, 1763 accepted as Peumus Molina, 1782 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Monimiaceae (Family)
 Boldu C.G.D. Nees, 1833 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Lauraceae (Family)

Boletaria
     Boletaria Gray, 1821 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)
 Boletaria Marsham, 1802 accepted as Mycetophagus Hellwig, 1792 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Mycetophagidae (Family)

Boletia
 Boletia L. Agassiz, 1841 accepted as Toxopneustes L. Agassiz, 1841 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Temnopleuroida (Order) > Toxopneustidae (Family)
     Boletia Desor, 1846 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Temnopleuroida (Order) > Toxopneustidae (Family)

Boletophagus
     Boletophagus Say, 1826 accepted as Bolitophagus Illiger, 1798 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Boletophagus Zetterstedt, 1840 accepted as Bolitophagus Illiger, 1798 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Boletophagus Agassiz, 1846 accepted as Bolitophagus Illiger, 1798 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Boletopsis
 Boletopsis P.C. Hennings in Engler & Prantl, 1898 accepted as Boletus E.M. Fries, 1821 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Boletaceae (Family)
     Boletopsis Fayod, 1889 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Thelephorales (Order) > Sarcodonaceae (Family)

Boletus
 Boletus de Tournefort ex Adanson, 1763 accepted as Morchella Dillenius ex Persoon, 1794 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Morchellaceae (Family)
     Boletus Linnaeus, 1753 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Boletaceae (Family)
 Boletus E.M. Fries, 1821 accepted as Boletus Linnaeus, 1753 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Boletaceae (Family)

Bolgarithyris
     Bolgarithyris Titova, 1986 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Capillithyrididae (Family)
     Bolgarithyris Favorskaya, 1980 † (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)

Bolina
     Bolina Münster, 1839 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Bolina Walker, 1857 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Bolina Duponchel, 1845 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Bolina Rafinesque, 1815 accepted as Phasianella Lamarck, 1804 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Phasianellidae (Family)
 Bolina Brusina, 1870 accepted as Bolma Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Turbinidae (Family)
 Bolina Rafinesque, 1838 accepted as Bertolonia Raddi, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
 Bolina Mertens, 1833 accepted as Bolinopsis L. Agassiz, 1860 · Animalia (Kingdom) > Ctenophora (Phylum) > Tentaculata (Class) > Lobata (Order) > Bolinopsidae (Family)

Bolinia
 Bolinia (Nitschke) P.A. Saccardo, 1882 accepted as Camarops P.A. Karsten, 1873 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Boliniales (Order) > Boliniaceae (Family)
     Bolinia Yabe, 1991 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Cottidae (Family)

Bolitobius
     Bolitobius Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Bolitobius Lacordaire, 1835 accepted as Lordithon Thomson, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Bolitogyrus
     Bolitogyrus Chevrolat, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Bolitogyrus Dejean, 1836 accepted as Bolitogyrus Chevrolat, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Bolivaria
 Bolivaria Chamisso & D.F.L. Schlechtendal, 1826 accepted as Menodora Bonpland in Humboldt & Bonpland, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Oleaceae (Family)
     Bolivaria Stål, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Rivetinidae (Family)

Bolivarita
 Bolivarita Hebard, 1933 accepted as Bolivariola Uvarov, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Bolivarita Escalera, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Bollandia
     Bollandia Reed, 1943 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Phillipsiidae (Family)
 Bollandia Glasby, 1994 accepted as Bollandiella Glasby & Krell, 2009 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Syllidae (Family)

Bollmania
 Bollmania accepted as Bollmannia Jordan in Jordan & Bollman, 1890 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gobiiformes (Order) > Gobiidae (Family)
     Bollmania Silvestri, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Bolocera
     Bolocera Berg, 1899 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Bolocera Kirby, 1892 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
     Bolocera Gosse, 1860 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniidae (Family)

Boloria
     Boloria Moore, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Boloria Grunt in Grunt & Dmitriev, 1973 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Paranorellidae (Family)

Bolosoma
     Bolosoma Ijima, 1904 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Euplectellidae (Family)
 Bolosoma Schulze, 1904 accepted as Bolosoma Ijima, 1904 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Euplectellidae (Family)

Boltalia
     Boltalia Gray, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)
     Boltalia Gray, 1840 accepted as Boltalia Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)

Boltenia
     Boltenia Savigny, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Bolteniidae (Family)
 Boltenia Agassiz, 1846 accepted as Boltenia Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)
     Boltenia Pfeiffer, 1878 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Oleacinidae (Family)

Boltonia
     Boltonia König, 1820 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)
     Boltonia Handlirsch, 1920 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Boltonia Pruvost, 1920 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Boltonia L'Héritier de Brutelle, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Boltonia Camacho & Feitosa, 2022 accepted as Bazboltonia Camacho & Feitosa, 2022 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)

Bomakellia
     Bomakellia Fedonkin, 1985 † · Animalia (Kingdom) > Vendobionta (Phylum) > (Class) > Charniomorpha (Order) > Charniidae (Family)
 Bomakellia Fedonkin, 1990 † accepted as Bomakellia Fedonkin, 1985 † · Animalia (Kingdom) > Vendobionta (Phylum) > (Class) > Charniomorpha (Order) > Charniidae (Family)

Bombina
 Bombina Oken, 1816 accepted as Bombina Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Bombinatoridae (Family)
     Bombina Tian & Hu, 1985 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Lissamphibia (awaiting allocation) (Order) > Lissamphibia (awaiting allocation) (Family)

Bombix
     Bombix Medikus, 1787 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Bombix Paetel, 1875 accepted as Bombix Paetel, 1875 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bomburia
     Bomburia van Valen, 1978 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Condylarthra (Order) > Mioclaenidae (Family)
     Bomburia Hedqvist, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)

Bombycia
     Bombycia Stephens, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Bombycia Hübner, 1822 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Drepanidae (Family)

Bombycites
     Bombycites Latreille in Cuvier, 1817 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Bombycites Heer, 1849 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Bombycidae (Family)

Bombylius
     Bombylius Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
 Bombylius Fauvel, 1902 accepted as Bombylodes Fauvel, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Bombylodes
     Bombylodes Fauvel, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Bombylodes Paramonov, 1940 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)

Bommeria
     Bommeria Pascher, 1922 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Bommeria H. Kufferath, 1914 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Euglenophyceae (Class) > Euglenales (Order) > Euglenaceae (Family)
     Bommeria Fournier in Baillon, 1877 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)

Bona
 Bona Medikus, 1787 accepted as Vicia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Bona Pavesi, 1884 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Bonairea
 Bonairea Pijpers, 1933 † accepted as Pijpersia Thalmann, 1954 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Glabratellidae (Family)
     Bonairea Baker, 1924 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Annulariidae (Family)

Bonamia
     Bonamia Du Petit-Thouars, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)
     Bonamia Pichot, Comps, Tigé, Grizel & Rabouin, 1980 · Chromista (Kingdom) > Cercozoa (Phylum) > Ascetosporea (Class) > Haplosporida (Order) > Haplosporidiidae (Family)

Bonannia
     Bonannia Rondani, 1861 accepted as Tryphera Meigen, 1838 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Bonannia K.B. Presl, 1826 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Bonannia Gussone, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Bonannia Rafinesque, 1814 accepted as Bonannia Rafinesque, 1814 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Bonapartia
     Bonapartia Büttikofer, 1896 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bonapartia Goode & Bean, 1896 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Stomiiformes (Order) > Gonostomatidae (Family)

Bonaria
     Bonaria Batista, 1959 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Naetrocymbaceae (Family)
     Bonaria McAtee & Malloch, 1933 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Bonasia
     Bonasia Fox, 1827 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bonasia Kaup, 1829 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Bonasia Bonaparte, 1828 accepted as Bonasa Stephens in Shaw, 1819 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)

Bonasus
 Bonasus accepted as Bonasa Stephens in Shaw, 1819 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
 Bonasus Fitzinger, 1860 accepted as Bison Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
     Bonasus Wagner in Schreber, 1844 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Bonatea
     Bonatea Druce, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Bonatea Willdenow, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Bondarevia
     Bondarevia Carlson in Williams, Brunton & Carlson, 2002 † (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Pentamerida (Order) > Huenellidae (Family)
 Bondarevia Bail & Chino, 2010 accepted as Saotomea Habe, 1943 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Volutidae (Family)

Bondia
     Bondia Newman, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Carposinidae (Family)
 Bondia Fernández-Yépez, 1948 accepted as Curimata Bosc, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Curimatidae (Family)

Bonea
     Bonea R. Ross & P.A. Sims, 1978 † · Chromista (Kingdom) > Heterokontophyta (Phylum) > Mediophyceae (Class) > Biddulphiales (Order) > Biddulphiaceae (Family)
     Bonea Roewer, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Podoctidae (Family)

Bonella
 Bonella accepted as Bonellia Rolando, 1821 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Bonelliida (Order) > Bonelliidae (Family)
 Bonella Eliot, 1913 accepted as Bonella Eliot, 1913 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Bornellidae (Family)

Bonellia
     Bonellia Rolando, 1821 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Bonelliida (Order) > Bonelliidae (Family)
     Bonellia Bertero ex Colla, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)
     Bonellia Robineau-Desvoidy, 1830 accepted as Bonellimyia Townsend, 1919 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Bonellia Deshayes in Lamarck, 1838 † accepted as Niso Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Eulimidae (Family)

Bonetia
     Bonetia Varol & Houghton, 1996 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)
     Bonetia Schiner, 1868 accepted as Bonnetia Robineau-Desvoidy, 1830 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Bonetiella
     Bonetiella Rzedowski, 1957 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)
 Bonetiella Trejo, 1983 † accepted as Bonetocardiella Dufour, 1968 † · Biota incertae sedis (Kingdom) > Calcitarcha (Phylum) > (Class) > (Order) > Pithonellidae (Family)

Bonia
     Bonia Patouillard, 1892 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Gloeophyllales (Order) > Gloeophyllaceae (Family)
     Bonia Walker, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Heliodinidae (Family)
     Bonia Balansa, 1890 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Boninella
     Boninella Matsumaru, 1996 † (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Foraminifera (awaiting allocation) (Class) > (Order) > (Family)
     Boninella Gressitt, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Boninia
 Boninia Pilsbry, 1901 accepted as Mandarina Pilsbry in Tryon & Pilsbry, 1894 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
     Boninia Bock, 1923 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Boniniidae (Family)
     Boninia Planchon, 1872 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Bonjeania
     Bonjeania Irwin & Lyneborg, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Therevidae (Family)
 Bonjeania accepted as Bonjeanea H.G.L. Reichenbach, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Bonnellia
 Bonnellia Dujardin, 1842 accepted as Bonellia Rolando, 1821 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Bonelliida (Order) > Bonelliidae (Family)
     Bonnellia Schiner, 1868 accepted as Bonellia Robineau-Desvoidy, 1830 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Bonnellia Desmarest in Chenu, 1858 accepted as Bonnellia Desmarest in Chenu, 1858 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Eulimidae (Family)

Bonnetella
     Bonnetella Cossmann, 1908 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)
 Bonnetella Trouessart in Bonnet, 1924 accepted as Pandionacarus Balogh, 1937 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Avenzoariidae (Family)

Bonnetia
 Bonnetia Cossmann, 1907 † accepted as Bonnetella Cossmann, 1908 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)
     Bonnetia C.F.P. Martius, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Bonnetiaceae (Family)
 Bonnetia Schreber, 1789 accepted as Bonnetia Schreber, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)
     Bonnetia Robineau-Desvoidy, 1830 accepted as Linnaemya Robineau-Desvoidy, 1830 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Bonnetia Caporiacco, 1955 accepted as Tutaibo Chamberlin, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)

Bonnierella
 Bonnierella R. Viguier, 1905 accepted as Polyscias J.R. Forster & J.G.A. Forster, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)
     Bonnierella Chevreux, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ischyroceridae (Family)

Bonplandara
     Bonplandara J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Bonplandara J.M.H. Shaw, 2004 accepted as Bonplandara J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Bonplandia
 Bonplandia Willdenow, 1802 accepted as Angostura J.J. Roemer & J.A. Schultes, 1819 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
     Bonplandia Cavanilles, 1800 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Polemoniaceae (Family)

Bonthainia
 Bonthainia Heinrich, 1934 accepted as Bonthainiella Heinrich, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Bonthainia Roewer, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)

Bontia
     Bontia Gray, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bontia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Boomerangia
     Boomerangia Siddiqi, 1994 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Tylenchulidae (Family)
 Boomerangia Szymkowiak, 2014 accepted as Boomerangiana Szymkowiak & Sherwood, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Thomisidae (Family)

Boops
     Boops Goüan, 1770 accepted as Boops Goüan, 1770 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Boops Cuvier, 1814 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sparidae (Family)
 Boops Gray, 1821 accepted as Balaenoptera Lacépède, 1804 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Balaenopteridae (Family)
 Boops Gronow in Gray, 1854 accepted as Priacanthus Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Priacanthidae (Family)

Boopsis
     Boopsis Teilhard de Chardin, 1936 † accepted as Boopsis Teilhard de Chardin, 1936 † (unreplaced junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Boopsis Pierantoni, 1923 accepted as Cephalopyge Hanel, 1905 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Phylliroidae (Family)

Bootia
     Bootia Bigelow, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Bootia Necker, 1768 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)
     Bootia Adanson, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Borbonia
 Borbonia P. Miller, 1754 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Lauraceae (Family)
 Borbonia Linnaeus, 1753 accepted as Aspalathus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Borborocoetes
     Borborocoetes Bell, 1843 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Leptodactylidae (Family)
     Borborocoetes Schönherr, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Borckhausenia
     Borckhausenia A.W. Roth, 1800 accepted as Teedia Rudolphi, 1800 (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
 Borckhausenia P.G. Gaertner, B. Meyer & J. Scherbius, 1801 accepted as Corydalis A.P. de Candolle in Lamarck & A.P. de Candolle, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Papaveraceae (Family)

Bordea
 Bordea Maire, 1916 accepted as Autophagomyces Thaxter, 1912 · Fungi (Kingdom) > Ascomycota (Phylum) > Laboulbeniomycetes (Class) > Laboulbeniales (Order) > Laboulbeniaceae (Family)
     Bordea Bosmans, 1995 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)

Bordonia
     Bordonia Cobos, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Bordonia Sakakibara, 1998 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)

Borealia
     Borealia Maksimova, 1977 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Proetida (awaiting allocation) (Family)
     Borealia Korshunova et al., 2017 accepted as Borealea Korshunova et al., 2017 (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Coryphellidae (Family)

Boreas
     Boreas Morris, 1980 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Hippothoidae (Family)
     Boreas Cumberlidge & von Sternberg, 2002 accepted as Boreathelphusa Cumberlidge, 2010 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Deckeniidae (Family)

Borelia
     Borelia Sorrentino, 1934 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Borelia Agassiz, 1844 accepted as Borelis de Montfort, 1808 · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Alveolinidae (Family)

Borelis
     Borelis de Montfort, 1808 · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Alveolinidae (Family)
     Borelis Oken, 1815 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Borellia
     Borellia Necker ex Rafinesque, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
     Borellia Rehn, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Borellia Burr, 1909 accepted as Euborellia Burr, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Dermaptera (Order) > Anisolabididae (Family)

Boreoceras
     Boreoceras Dagys & Ermakova, 1988 † accepted as Rudolftruempyiceras Guex & Bylund in Guex et al., 2010 † (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Columbitidae (Family)
     Boreoceras Miller & Youngquist, 1947 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ellesmerocerida (Order) > Ellesmeroceratidae (Family)

Boreolepis
     Boreolepis Nielsen, 1935 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Palaeonisciformes (Order) > Palaeonisciformes (awaiting allocation) (Family)
     Boreolepis Aldinger, 1935 † accepted as Boreolepis Nielsen, 1935 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Palaeonisciformes (Order) > Palaeonisciformes (awaiting allocation) (Family)

Boreomyia
 Boreomyia Hardy, 1920 accepted as Boreoides Hardy, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
     Boreomyia Coquillet, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Borgella
     Borgella Brood, 1968 accepted as Borgella Brood, 1968 (nomen nudum)· Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Heteroporidae (Family)
     Borgella Kluge, 1952 · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Cerioporidae (Family)

Boriomyia
     Boriomyia Banks, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)
     Boriomyia Banks, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)

Borisia
     Borisia Rohdendorf, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Borisia Hachisuka, 1935 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Borisia Filipjev, 1949 accepted as Sirioba Nye, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Borkhausenia
     Borkhausenia Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
     Borkhausenia A.N. Sennikov & A. Kurtto, 2017 accepted as Scandosorbus A.N. Sennikov, 2018 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)

Borneacris
     Borneacris Ramme, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Borneacrididae (Family)
     Borneacris Bolívar & Bolívar, 1944 accepted as Borneacridium Kevan, 1963 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Chorotypidae (Family)

Bornella
     Bornella Adams & Reeve, 1848 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Bornellidae (Family)
     Bornella Gray, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Bornellidae (Family)

Borneria
     Borneria Axelson, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Neanuridae (Family)
     Borneria Grassi & Foà, 1908 accepted as Boerneria Grassi & Foà, 1908 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Phylloxeridae (Family)
 Borneria Willem, 1902 accepted as Boerneria Willem, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)

Börneria
 Börneria Willem, 1902 accepted as Boerneria Willem, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)
     Börneria Grassi & Foà, 1908 accepted as Boerneria Grassi & Foà, 1908 (misspelling - incorrect original spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Phylloxeridae (Family)
 Börneria Axelson, 1902 accepted as Borneria Axelson, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Neanuridae (Family)

Bornia
     Bornia Philippi, 1836 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Kelliidae (Family)
 Bornia Sternberg, 1825 † accepted as Bornia Sternberg, 1825 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetales (Order) > Calamariaceae (Family)
     Bornia † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)
     Bornia Navás, 1928 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)

Borodinia
     Borodinia Hanzawa, 1940 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Acervulinidae (Family)
 Borodinia Busch, 1921 accepted as Boechera Á. Löve & D. Löve, 1976 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Boroecia
     Boroecia Kock, 1992 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Boroecia Poulsen, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Halocyprida (Order) > Halocyprididae (Family)

Boromys
     Boromys Miller, 1916 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Echimyidae (Family)
 Boromys Dashzeveg, 1990 † accepted as Euboromys Dashzeveg & McKenna, 1991 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Yuomyidae (Family)

Borrera
 Borrera C.P.J. Sprengel, 1830 accepted as Spermacoce Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Borrera Acharius, 1810 accepted as Teloschistes Norman, 1853 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Teloschistaceae (Family)

Borus
     Borus Albers, 1850 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Strophocheilidae (Family)
 Borus Agassiz, 1846 accepted as Boros Herbst in Jablonsky, 1797 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Boridae (Family)

Borya
 Borya Willdenow, 1806 accepted as Forestiera Poiret in Lamarck, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Oleaceae (Family)
     Borya Labillardière, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Boryaceae (Family)

Borysthenia
     Borysthenia Lindholm, 1914 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Valvatidae (Family)
     Borysthenia F.A. Stanislawski, 1976 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Podocarpaceae (Family)

Borzaiella
 Borzaiella Grün & Blau, 1996 † accepted as Borzaites Grün & Blau in Aescht, 2001 † · Protozoa (Kingdom) > Protozoa incertae sedis (Phylum) > (Class) > (Order) > Calpionellidae (Family)
     Borzaiella Makar'eva, 1979 † · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)

Borziella
     Borziella Pop, 1997 † · Protozoa (Kingdom) > Protozoa incertae sedis (Phylum) > (Class) > (Order) > Chitinoidellidae (Family)
 Borziella E.A. Molinari-Novoa & M.D. Guiry in Molinari-Novoa et al., 2021 accepted as Bacillosiphon Copeland, 1936 · Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Synechococcales (Order) > Synechococcaceae (Family)

Boschia
 Boschia Montagne, 1856 accepted as · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Corsiniaceae (Family)
     Boschia P.W. Korthals in Temminck, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Boscia
 Boscia Leach, 1814 accepted as Melita Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Melitidae (Family)
     Boscia Lamarck, 1793 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)
     Boscia Schweigger, 1819 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Boscia Thunberg, 1794 accepted as Vepris Commerson ex A.H.L. Jussieu, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Boscia Férussac, 1822 accepted as Megatrema Sowerby, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Sessilia (Order) > Pyrgomatidae (Family)
 Boscia Leach, 1824 accepted as Selonodon Latreille, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Boscia H. Milne Edwards, 1837 accepted as Guinotia Pretzmann, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pseudothelphusidae (Family)

Boscis
     Boscis Brehm, 1831 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Boscis Brehm, 1828 accepted as Boscis Brehm, 1828 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Bosea
     Bosea Das et al., 1996 · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Alphaproteobacteria (Class) > Hyphomicrobiales (Order) > Boseaceae (Family)
     Bosea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Bosea S.C. Srivastava, 1975 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Pteridospermopsida (awaiting allocation) (Order) > Pteridospermopsida (awaiting allocation) (Family)
     Bosea C. He & Z. Qian, 1979 † accepted as Bosedinia C. He, 1984 † (junior homonym)· Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Peridiniaceae (Family)

Boskovicia
     Boskovicia Dostál & Prokop, 2009 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diaphanopterodea (Order) > Martynoviidae (Family)
     Boskovicia Brusina, 1884 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Lymnaeidae (Family)

Bosmina
     Bosmina Cameron, 1899 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Bosmina Baird, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Diplostraca (Order) > Bosminidae (Family)

Bosquetella
     Bosquetella Smirnova, 1969 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Thecideida (awaiting allocation) (Family)
     Bosquetella Smirnova, 1967 † accepted as Bosquetella Smirnova, 1969 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Thecideida (awaiting allocation) (Family)

Bossea
 Bossea Manza, 1937 accepted as Bossiella P.C. Silva, 1957 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Corallinales (Order) > Corallinaceae (Family)
     Bossea H.G.L. Reichenbach, 1841 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Geraniales (Order) > Geraniaceae (Family)

Bostra
     Bostra Walker, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Bostra Stål, 1875 accepted as Bostranova Villet, 2023 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Diapheromeridae (Family)

Bostrichoides
 Bostrichoides Montrouzier, 1855 accepted as Ancistria Erichson, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Passandridae (Family)
 Bostrichoides Duméril, 1805 accepted as Channa Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Channidae (Family)

Bostrichopus
     Bostrichopus Goldfuss, 1839 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Bostrichopus Goldfuss, 1836 accepted as Bostrichopus Goldfuss, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Bostrichus
     Bostrichus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bostrichidae (Family)
 Bostrichus Fourcroy, 1785 accepted as Bostrichus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bostrichidae (Family)
 Bostrichus Fabricius, 1775 accepted as Ips de Geer, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Bostrychia
     Bostrychia Montagne in Sagra, 1842 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)
     Bostrychia Gray, 1847 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Threskiornithidae (Family)
     Bostrychia Reichenbach, 1853(1852) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Threskiornithidae (Family)
 Bostrychia E.M. Fries, 1821 accepted as Valsa E.M. Fries, 1849 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Cytosporaceae (Family)

Bostrychus
 Bostrychus Agassiz, 1846 accepted as Bostrichus Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Bostrychus Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gobiiformes (Order) > Eleotridae (Family)

Boswellia
     Boswellia Sokolov, 1939 † accepted as Chaetetes Eichwald, 1829 † (junior subjective synonym)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Suberitida (Order) > Suberitidae (Family)
     Boswellia Roxburgh ex Colebrooke, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Burseraceae (Family)

Botanebius
     Botanebius Schoenherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Botanebius Schönherr, 1833 accepted as Botanebius Schoenherr, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Botanobius
 Botanobius Agassiz, 1846 accepted as Botanebius Schoenherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Botanobius Gemminger & Harold, 1871 accepted as Botanebius Schoenherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Botellus
 Botellus Iredale, 1924 accepted as Botelloides Strand, 1928 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Trochidae (Family)
     Botellus Spix & Martius, 1823 accepted as Botellus Spix & Martius, 1823 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Botellus Moniez, 1887 · Chromista (Kingdom) > Cercozoa (Phylum) > Ascetosporea (Class) > Haplosporida (Order) > Haplosporida (awaiting allocation) (Family)
     Botellus F. Schütt, 1900 (uncertain)· Chromista (Kingdom) > Heterokontophyta (Phylum) > (Class) > Bacillariophytina_(awaiting_allocation) (Order) > (Family)

Botelua
 Botelua Lagasca, 1805 accepted as Bouteloua Lagasca, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Botelua Hornemann ex Palisot de Beauvois, 1812 accepted as Botelua Hornemann ex Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Botha
     Botha Shelley, 1902 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Botha Distant, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Bothria
 Bothria Chapman, 1908 accepted as Bothrinia Chapman, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
     Bothria Rondani, 1856 accepted as Botria Rondani, 1856 (misspelling - incorrect original spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Bothrideres
     Bothrideres Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bothrideridae (Family)
 Bothrideres Haldeman, 1843 accepted as Bothrideres Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bothrideridae (Family)

Bothriogaster
     Bothriogaster Sseliwanoff, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Geophilomorpha (Order) > Himantariidae (Family)
     Bothriogaster Fuhrmann, 1904 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Bothriolepis
 Bothriolepis Eichwald, 1840 [2] † accepted as Bothriolepis Eichwald, 1840 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Antiarcha (Order) > Bothriolepididae (Family)
     Bothriolepis Eichwald, 1840 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Antiarcha (Order) > Bothriolepididae (Family)

Bothrioneurum
     Bothrioneurum Stolc, 1888 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)
 Bothrioneurum Michaelsen, 1900 accepted as Bothrioneurum Stolc, 1888 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)

Bothriopsis
 Bothriopsis Schneider, 1875 accepted as Bothriopsides Strand, 1928 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Actinocephalidae (Family)
     Bothriopsis Peters, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Viperidae (Family)

Bothriopterus
 Bothriopterus Chaudoir, 1835 accepted as Pterostichus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Bothriopterus Chaudoir, 1838 accepted as Bothriopterus Chaudoir, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Bothriotaenia
 Bothriotaenia Edwards, 1897 accepted as Bothriotaenia Edwards, 1897 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)
 Bothriotaenia Fuhrmann, 1908 accepted as Tetrabothrius Rudolphi, 1819 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Tetrabothriidae (Family)
     Bothriotaenia Railliet, 1892 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)

Bothrocara
     Bothrocara Uvarov, 1951 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Bothrocara Bean, 1890 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Zoarcidae (Family)

Bothrophis
 Bothrophis Zittel, 1889 † accepted as Bothrophis Zittel, 1889 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Bothrophis Fitzinger, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Viperidae (Family)
     Bothrophis Fitzinger, 1843 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Bothrophorus
     Bothrophorus Savchenko & Plyushch, 1984 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)
 Bothrophorus Leuckart, 1819 accepted as Bothriocephalus Rudolphi, 1808 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Bothriocephalidea (Order) > Bothriocephalidae (Family)

Bothropoma
     Bothropoma Wagner, 1908 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bothropoma Thiele, 1924 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Colloniidae (Family)

Bothrops
     Bothrops Wagler, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Viperidae (Family)
     Bothrops Spix & Martius, 1823 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Bothrosteus
     Bothrosteus Agassiz, 1844 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Bothrosteus Agassiz, 1844, nom. nud. † accepted as Bothrosteus Agassiz, 1844, nom. nud. † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Bothus
     Bothus Cava, 1947 accepted as Buthus Leach, 1816 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Buthidae (Family)
     Bothus Bonaparte, 1841 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Pleuronectidae (Family)
     Bothus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Bothidae (Family)

Bothynoderes
     Bothynoderes Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Bothynoderes Chevrolat, 1873 accepted as Asproparthenis Des Gozis, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Botis
 Botis Agassiz, 1846 accepted as Botys Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
     Botis Swainson, 1821 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Botria
 Botria Loureiro, 1790 accepted as Ampelocissus J.E. Planchon, 1884 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Vitales (Order) > Vitaceae (Family)
     Botria Rondani, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Botriopygus
     Botriopygus Desor, 1857 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Botriopygus d'Orbigny, 1856 † accepted as Pygorhynchus L. Agassiz, 1839 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Euechinoidea incertae sedis (Order) > Pygaulidae (Family)

Botrobatys
     Botrobatys Dejean, 1835 accepted as Desmidophorus Dejean, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Botrobatys Chevrolat, 1842 accepted as Desmidophorus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)

Botrophis
     Botrophis Rafinesque, 1828 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)
     Botrophis Rochebrune, 1880 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Botryanthus
 Botryanthus Kunth, 1843 accepted as Muscari P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
 Botryanthus McMurrich, 1910 accepted as Botruanthus McMurrich, 1910 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Ceriantharia (Order) > Botrucnidiferidae (Family)

Botryceras
     Botryceras Flower, 1968 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Endocerida (Order) > Endocerida (awaiting allocation) (Family)
 Botryceras Willdenow, 1811 accepted as Laurophyllus Thunberg, 1792 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)

Botrydiopsis
 Botrydiopsis Trevisan, 1845 accepted as Lichenomphalia Redhead, Lutzoni, Moncalvo & Vilgalys, 2002 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Lichenomphaliaceae (Family)
     Botrydiopsis A. Borzì, 1889 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Botrydiopsidaceae (Family)

Botrydium
     Botrydium Wallroth, 1815 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Xanthophyceae (Class) > Vaucheriales (Order) > Botrydiaceae (Family)
 Botrydium Spach, 1836 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Botryella
 Botryella H. Sydow & P. Sydow, 1916 accepted as Sphaerellopsis M.C. Cooke, 1883 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Phaeosphaeriaceae (Family)
 Botryella V.P. Shuysky, 1987 † accepted as Vitinella E.A. Molinari-Novoa & C.E. Sánchez Ocharan in Molinari-Novoa et al., 2021 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Codiaceae (Family)

Botryllus
     Botryllus Pallas, 1774 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)
 Botryllus Oken, 1815 accepted as Botryllus Oken, 1815 · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Botryllus Gaertner, 1774 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Styelidae (Family)

Botryobasidium
 Botryobasidium Rick, 1959 accepted as Botryobasidium Rick, 1959 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Thelephorales (Order) > Thelephoraceae (Family)
     Botryobasidium Donk, 1931 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Cantharellales (Order) > Botryobasidiaceae (Family)

Botryochaete
     Botryochaete Corda, 1854 · Fungi (Kingdom) > Basidiomycota (Phylum) > Atractiellomycetes (Class) > Atractiellales (Order) > Phleogenaceae (Family)
     Botryochaete Rick, 1959 · Fungi (Kingdom) > Basidiomycota (Phylum) > Basidiomycota incertae sedis (Class) > Basidiomycota incertae sedis (Order) > Basidiomycota incertae sedis (Family)

Botryomyces
     Botryomyces Greco, 1916 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Botryomyces G.S. de Hoog & C. Rubio, 1982 accepted as Ybotromyces Rulamort, 1986 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Botryonopa
     Botryonopa Blanchard, 1845 accepted as Bothryonopa Guérin-Méneville, 1840 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Botryonopa Dejean, 1836 accepted as Bothryonopa Guérin-Méneville, 1840 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Botryophora
 Botryophora J.G. Agardh, 1887 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)
 Botryophora Bompard, 1867 accepted as Halimeda J.V.F. Lamouroux, 1812 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Codiaceae (Family)
     Botryophora J.D. Hooker, 1888 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Botryopteris
 Botryopteris K.B. Presl, 1825 accepted as Helminthostachys Kaulfuss, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Ophioglossales (Order) > Ophioglossaceae (Family)
 Botryopteris B. Renault, 1875 † accepted as Botryopteridium A.B. Doweld, 2001 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Stauropteridales (Order) > Botryopteridiaceae (Family)

Botryosphaerostroma
 Botryosphaerostroma Petrak, 1921 accepted as Botryodiplodia (P.A. Saccardo) P.A. Saccardo, 1884 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Diaporthales incertae sedis (Family)
 Botryosphaerostroma Petrak & H. Sydow, 1926 accepted as Sphaeropsis P.A. Saccardo, 1880 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Botryosphaeriales (Order) > Botryosphaeriaceae (Family)

Botryosporium
     Botryosporium Corda in J. Sturm, 1831 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Botryosporium Schweinitz, 1832 accepted as Dictyosporium Corda, 1836 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Dictyosporiaceae (Family)

Botrys
     Botrys Nieuwland, 1914 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
     Botrys C. Bauhin ex Fourreau, 1869 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Botrys M.S. Yakschin, 2002 † accepted as (unavailable name)· Plantae (Kingdom) > Algae incertae sedis (Phylum) > (Class) > (Order) > (Family)
 Botrys D.I. Schirschova, 1985 † accepted as Vitivisus E.A. Molinari-Novoa & C.E. Sánchez Ocharan in Molinari-Novoa et al., 2021 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Codiaceae (Family)

Botula
 Botula Neave, 1939 accepted as Rotula Schumacher, 1817 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Clypeasteroida (Order) > Rotulidae (Family)
     Botula Leske, 1778 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Botula Mörch, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)
 Botula accepted as Botulus Guiart, 1938 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Azygiida (Order) > Botulidae (Family)

Botuloides
     Botuloides Y. Zheng, 1979 · Chromista (Kingdom) > Retaria (Phylum) > Nodosariata (Class) > Nodosariida (Order) > Nodosariidae (Family)
     Botuloides Freneix, 1960 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Bouchardia
 Bouchardia Guiart, 1927 accepted as Sphyriocephalus Pintner, 1913 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Trypanorhyncha (Order) > Sphyriocephalidae (Family)
     Bouchardia Davidson, 1850 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Bouchardiidae (Family)

Bouchetia
     Bouchetia Houart & Héros, 2008 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
     Bouchetia Dunal in Alph. de Candolle, 1852 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Boudiera
     Boudiera M.C. Cooke, 1877 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pezizaceae (Family)
 Boudiera Lázaro Ibiza, 1916 accepted as Phellinus Quélet, 1886 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Hymenochaetales (Order) > Hymenochaetaceae (Family)

Boudierella
 Boudierella Costantin, 1897 accepted as Conidiobolus Brefeld, 1884 · Fungi (Kingdom) > Entomophthoromycota (Phylum) > Entomophthoromycetes (Class) > Entomophthorales (Order) > Conidiobolaceae (Family)
     Boudierella P.A. Saccardo in Marchal, 1895 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pyronemataceae (Family)

Bougainvillea
 Bougainvillea Forbes, 1848 accepted as Bougainvillia Lesson, 1830 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Bougainvilliidae (Family)
     Bougainvillea Commerson ex A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)

Boulaya
     Boulaya J. Cardot, 1912 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Thuidiaceae (Family)
     Boulaya M. Gandoger, 1886 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Boulaya Carpentier, 1925 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Pteridospermopsida (awaiting allocation) (Order) > Pteridospermopsida (awaiting allocation) (Family)

Boulengerina
 Boulengerina Fowler, 1907 accepted as Kuhlia Gill, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Kuhliidae (Family)
     Boulengerina Dollo, 1886 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)

Bourcieria
 Bourcieria Crosse, 1869 accepted as Bourciera Pfeiffer, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Helicinidae (Family)
     Bourcieria Bonaparte, 1850 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Bourdonia
 Bourdonia E.L. Greene, 1893 accepted as Chaetopappa A.P. de Candolle, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Bourdonia Rybakov, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Cabiropidae (Family)

Bourdotia
     Bourdotia Dall, 1901 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Lucinidae (Family)
 Bourdotia (Bresadola) Trotter in P.A. Saccardo, 1925 accepted as · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Auriculariales (Order) > Auriculariaceae (Family)
     Bourdotia (Bresadola) Bresadola & Torrend, 1913 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Auriculariales (Order) > Auriculariales incertae sedis (Family)

Bouteloua
     Bouteloua Hornemann ex Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Bouteloua Lagasca, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Boutonia
     Boutonia A.P. de Candolle, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Boutonia W. Bojer, 1846 accepted as Hancea B.C. Seemann, 1857 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Bouvierella
     Bouvierella Chevreux, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Calliopiidae (Family)
 Bouvierella Surcouf, 1909 accepted as Bouvieromyia Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)

Bouvieria
     Bouvieria Daday, 1913 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Bouvieria Vayssière, 1896 accepted as Berthella Blainville, 1824 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Pleurobranchomorpha (Order) > Pleurobranchidae (Family)

Bowdenia
     Bowdenia Nouioui et al., 2018 accepted as Bowdeniella corrig. Nouioui et al., 2018 (misspelling - incorrect original spelling)· Bacteria (Kingdom) > Actinomycetota (Phylum) > Actinomycetes (Class) > Actinomycetales (Order) > Actinomycetaceae (Family)
     Bowdenia Dall, 1903 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Pholadomyoida (awaiting allocation) (Family)

Bowenia
     Bowenia J.D. Hooker, 1863 · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadales (Order) > Zamiaceae (Family)
 Bowenia Haast, 1873 accepted as Rhombosolea Günther, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Pleuronectidae (Family)

Bowiea
 Bowiea A.H. Haworth, 1824 accepted as Bowiea A.H. Haworth, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
     Bowiea W.H. Harvey ex J.D. Hooker, 1867 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)

Bowkeria
     Bowkeria W.H. Harvey, 1859 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Stilbaceae (Family)
     Bowkeria Quickelberge, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)

Bowlesia
     Bowlesia Ruiz & Pavón, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Bowlesia Etayo-Serna, 1979 † accepted as Turritellidae Lovén, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Turritellidae (Family)

Bowmania
     Bowmania G. Gardner, 1843 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Bowmania Walcott, 1925 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Bowmaniella
     Bowmaniella Bacescu, 1968 accepted as Bowmaniella Bacescu, 1968 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)
 Bowmaniella Heard & Price, 2006 accepted as Chlamydopleon Ortmann, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)

Bowringia
 Bowringia Champion ex Bentham, 1852 accepted as Leucomphalos Bentham ex J.E. Planchon, 1848 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Bowringia W.J. Hooker, 1853 accepted as Brainea J. Smith, 1856 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Blechnaceae (Family)

Box
 Box Gistl, 1848 accepted as Aspidophorus Ziegler in Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Sphindidae (Family)
 Box Valenciennes in Cuvier & Valenciennes, 1830 accepted as Boops Cuvier, 1814 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sparidae (Family)

Boydia
     Boydia Newman, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Xyloryctidae (Family)
 Boydia A.L. Smith, 1919 accepted as Vialaea P.A. Saccardo, 1896 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Amphisphaeriales (Order) > Vialaeaceae (Family)

Bozorgniella
     Bozorgniella Rahaghi, 1973 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Nummulitidae (Family)
 Bozorgniella Cózar & Vachard, 2001 † accepted as Bozorgnites Cózar, Vachard & Le Coze, 2019 † · Chromista (Kingdom) > Retaria (Phylum) > Fusulinata (Class) > Fusulinida (Order) > Pseudoendothyridae (Family)

Bracea
 Bracea N.L. Britton, 1905 accepted as Neobracea N.L. Britton in N.L. Britton & Millspaugh, 1920 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Bracea G. King, 1895 accepted as Sarcosperma J.D. Hooker in Bentham & J.D. Hooker, 1876 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)

Bracebridgea
 Bracebridgea accepted as Bracebridgia MacGillivray, 1886 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Adeonidae (Family)
 Bracebridgea J.G. Agardh, 1894 accepted as Wrangelia C.A. Agardh, 1828 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Wrangeliaceae (Family)

Brachaelurus
     Brachaelurus Ogilby, 1907 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Orectolobiformes (Order) > Brachaeluridae (Family)
 Brachaelurus Ogilby, 1908 accepted as Brachaelurus Ogilby, 1907 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Orectolobiformes (Order) > Brachaeluridae (Family)

Brachiacantha
     Brachiacantha Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
     Brachiacantha Chevrolat in d'Orbigny, 1842 accepted as Brachiacantha Chevrolat in Dejean, 1836 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)

Brachidia
 Brachidia Gemminger & Harold, 1868 accepted as Brachidius de Chaudoir, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Brachidia Solier in Gay, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)

Brachina
     Brachina Barnard & Williams, 1995 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Melitidae (Family)
     Brachina van Beneden, 1850 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Brachina Wade, 1972 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Scyphozoa (Class) > Scyphozoa (awaiting allocation) (Order) > Scyphozoa (awaiting allocation) (Family)

Brachionus
     Brachionus Billberg, 1833 accepted as (unassessed)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Ogcocephalidae (Family)
     Brachionus Blumenbach, 1790 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Brachionus Schrank, 1776 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Brachionus Pallas, 1766 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Brachionidae (Family)

Brachionyx
     Brachionyx Meigen, 1832 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Brachionyx Sainte Claire-Deville, 1923 accepted as Brachonyx Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Brachiosphaera
     Brachiosphaera D. Noël, 1958 † accepted as (nomen dubium)· Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Coccolithophyceae incertae sedis (Order) > (Family)
     Brachiosphaera A. Nawawi in E. Descals et al., 1976 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Jahnulales (Order) > Aliquandostipitaceae (Family)

Brachipalpus
     Brachipalpus Rondani, 1863 accepted as Palpibracus Rondani, 1863 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Brachipalpus Rondani, 1845 accepted as Brachypalpus Macquart, 1834 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Brachipus
     Brachipus Costa, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Brachipus Latreille, 1828 accepted as Brachygyius Marshall, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Brachipus Bonaparte, 1825 accepted as Brachipus Bonaparte, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Apodidae (Family)
 Brachipus Swainson, 1837 accepted as Brachipus Swainson, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Pycnonotidae (Family)

Brachirus
 Brachirus Swainson, 1838 accepted as Dendrochirus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)
     Brachirus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Soleidae (Family)

Brachonyx
     Brachonyx Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Brachonyx Swainson, 1827 accepted as Mirafra Horsfield, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Alaudidae (Family)

Brachtia
     Brachtia H.G. Reichenbach, 1850 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Brachtia Trevisan, 1848 accepted as Palmophyllum Kützing, 1847 · Plantae (Kingdom) > Prasinodermatophyta (Phylum) > Palmophyllophyceae (Class) > Palmophyllales (Order) > Palmophyllaceae (Family)

Brachyandra
 Brachyandra Naudin, 1844 accepted as Brachyandra Naudin, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
 Brachyandra R.A. Philippi, 1860 accepted as Helogyne Nuttall, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Brachyaspis
 Brachyaspis Miller, 1936 † accepted as Brachyaspidion Miller, 1936 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Kingstoniidae (Family)
     Brachyaspis Salter, 1866 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Brachyaspis Boulenger, 1896 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)

Brachybamus
     Brachybamus Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
     Brachybamus Germar, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Brachybamus Germar, 1833 accepted as Brachybamus Germar, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)

Brachybasis
     Brachybasis Selys, 1868 accepted as Brachybasis Selys, 1868 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
     Brachybasis Kirby, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
     Brachybasis Reuter, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Brachybasis Swinhoe, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Brachybelus
     Brachybelus Stål, 1869 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Brachybelus Naef, 1922 † accepted as Brevibelus Doyle, 1992 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Belemnitida (Order) > Passaloteuthidae (Family)
 Brachybelus Zimmerman, 1994 accepted as Hadrobelus Zimmerman in Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Belidae (Family)

Brachyblemma
     Brachyblemma Wagler, 1833 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Brachyblemma Hampson, 1926 † accepted as Habershonia Nye, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Brachycaulus
     Brachycaulus Fairmaire, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Brachycaulus Marshall, 1916 accepted as Brachymiscus Marshall, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Brachycentrum
 Brachycentrum C.F. Meisner, 1838 accepted as Centronia D. Don, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
     Brachycentrum Dahl, 1886 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Brachycentrus
     Brachycentrus Taschenberg, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Brachycentrus Metcalf & Bruner, 1925 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
     Brachycentrus Szépligeti, 1907 accepted as Phaedrotoma Förster, 1862 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
     Brachycentrus Curtis, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Brachycentridae (Family)

Brachycephalus
     Brachycephalus Fitzinger, 1826 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Brachycephalidae (Family)
 Brachycephalus Hollard, 1857 accepted as Tetraodon Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontidae (Family)
     Brachycephalus Signoret, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Brachycephalus Förster, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Brachyceraea
     Brachyceraea Röder, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Conopidae (Family)
 Brachyceraea Fieber, 1861 accepted as Brachyceraea Fieber, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Brachycercus
 Brachycercus Willemse, 1921 accepted as Megra Campion, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pyrgomorphidae (Family)
     Brachycercus Curtis, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Caenidae (Family)

Brachychaeta
     Brachychaeta Bezzi in Becker et al., 1907 accepted as Brachicheta Rondani, 1861 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Brachychaeta Brauer & Bergenstamm, 1889 accepted as Brachicheta Rondani, 1861 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Brachychaeta Torrey & A. Gray, 1842 accepted as Solidago Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Brachychaeta X.W. Wang & J. Houbraken in Wang et al., 2019 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariales (Order) > Chaetomiaceae (Family)

Brachychara
     Brachychara L. Grambast & N. Grambast, 1954 † (uncertain)· Plantae (Kingdom) > Charophyta (Phylum) > Charophyceae (Class) > Charales (Order) > Characeae (Family)
     Brachychara Sharp, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Brachycis
 Brachycis Casey, 1898 accepted as Malacocis Gorham, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ciidae (Family)
 Brachycis Lea, 1913 accepted as Brachyphyes Marshall, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Brachycladium
 Brachycladium M.J. Berkeley, 1848 † accepted as Brachycarphium Berkeley, 1849 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Brachycladium Looss, 1899 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Brachycladiidae (Family)
 Brachycladium Corda, 1838 accepted as Dendryphion Wallroth, 1833 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Torulaceae (Family)

Brachycnemis
     Brachycnemis Schönherr, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Brachycnemis Waterhouse, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Brachycodon
 Brachycodon (Bentham) A. Progel in C.F.P. Martius, 1865 accepted as Irlbachia C.F.P. Martius, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
 Brachycodon A.A. Fedorov in B.K. Schischkin & E.G. Bobrov, 1957 accepted as Campanula Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)

Brachycoelia
     Brachycoelia Meade, 1892 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Brachycoelia Waterhouse, 1881 accepted as Migadops Waterhouse, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Brachycola
 Brachycola Audinet-Serville, 1838 accepted as Hormetica Burmeister, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blaberidae (Family)
     Brachycola Warren, 1897 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Brachycola Saussure, 1864 accepted as Parahormetica Brunner von Wattenwyl, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blaberidae (Family)

Brachycolus
     Brachycolus Buckton, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
     Brachycolus Konow, 1895 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)

Brachycoma
     Brachycoma Brauer & Bergenstamm, 1889 accepted as Brachicoma Rondani, 1856 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
     Brachycoma Meade, 1892 accepted as Brachycoma Brauer & Bergenstamm, 1889 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Brachyconger
 Brachyconger Bleeker, 1864 accepted as Cynoponticus Costa, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Muraenesocidae (Family)
 Brachyconger Norman, 1922 accepted as Chilorhinus Lütken, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Chlopsidae (Family)

Brachycoryna
     Brachycoryna Dejean, 1835 accepted as Brachycoryna Guérin-Méneville, 1844 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Brachycoryna Baly, 1886 accepted as Brachycoryna Guérin-Méneville, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Brachycoryna Guérin-Méneville, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Brachycoryne
     Brachycoryne Mabille, 1883 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
     Brachycoryne Aizenberg, 1935 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Brachycosmia
     Brachycosmia Butler, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Brachycosmia Hampson, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Brachycrepis
 Brachycrepis Ashmead, 1888 accepted as Bubekia Dalla Torre, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Brachycrepis Leconte, 1854 accepted as Anchastus Leconte, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Brachycrotaphus
     Brachycrotaphus Krauss, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Brachycrotaphus Czerny, 1932 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Heleomyzidae (Family)

Brachycryptus
     Brachycryptus Thomson, 1873 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Brachycryptus Quedenfeldt, 1891 accepted as Tripolicryptus Strand, 1929 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Brachycyrtus
 Brachycyrtus Hoffer, 1957 accepted as Brachyencyrtus Hoffer, 1959 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
     Brachycyrtus Kriechbaumer, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Brachycyrtus Fairmaire, 1886 accepted as Brachycyclus Marshall, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Brachycyttara
 Brachycyttara Turner, 1945 accepted as Brevicyttara Fletcher in Fletcher & Nye, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Cossidae (Family)
     Brachycyttara Turner, 1933 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Brachydactyla
     Brachydactyla Brookes, 1828 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Brachydactyla Lacordaire, 1845 accepted as Pseudocrioceris Pic, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Brachydactylus
     Brachydactylus O.M. Reis, 1923 † (uncertain)· Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Cyanophyceae (awaiting allocation) (Order) > Cyanophyceae (awaiting allocation) (Family)
     Brachydactylus Smith, 1834 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Brachydactylus Peters, 1863 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)

Brachydectes
     Brachydectes Cope, 1868 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Brachydectes Owen, 1879 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Goniopholididae (Family)

Brachydella
     Brachydella Ball & Beamer, 1940 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Brachydella Coiffait, 1980 accepted as Brachyda Coiffait, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Brachydema
 Brachydema Sloane, 1915 accepted as Sloaneana Csiki, 1933 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Brachydema Fairmaire, 1881 accepted as Tanyproctus Faldermann in Ménétriés, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Brachydirus
 Brachydirus Nordmann, 1837 accepted as Nordus Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Brachydirus Smith Woodward, 1891 † accepted as Brachydeirus Koenen, 1880 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Arthrodira (awaiting allocation) (Family)

Brachydonta
     Brachydonta Schlüter, 1838 accepted as Brachydonta Schlüter, 1838 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Brachydonta Bucquoy, Dautzenberg & Dollfus, 1890 accepted as Brachidontes Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)

Brachydromicus
     Brachydromicus Bordoni, 1986 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Brachydromicus Bordoni, 1984 accepted as Geodromicus Redtenbacher, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Brachydromicus Bordoni, 1993 accepted as Geodromicus Redtenbacher, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Brachydromicus Anonymous, 1987 accepted as Geodromicus Redtenbacher, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Brachyelasma
     Brachyelasma Lang, Smith & Thomas, 1940 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Streptelasmatidae (Family)
     Brachyelasma Breuning, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Brachygaster
     Brachygaster Leach, 1817 accepted as Brachygaster Leach, 1817 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Evaniidae (Family)
 Brachygaster Mulsant, 1853 accepted as Regimbartia Zaitzev, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)
     Brachygaster von Meyer, 1847 accepted as Brachygaster von Meyer, 1847 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Brachygaster Meigen, 1826 accepted as Saltella Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sepsidae (Family)

Brachygenius
     Brachygenius Dejean, 1834 accepted as Brachygenius Dejean, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Brachygenius Schoch, 1896 accepted as Brachagenius Kraatz, 1890 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Brachygenius Dejean, 1836 accepted as Gyriosomus Guérin, 1834 (junior objective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Brachyglossa
 Brachyglossa Friese, 1922 accepted as Brachyglossula Hedicke, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Colletidae (Family)
 Brachyglossa Fauvel, 1866 accepted as Feluva Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Brachyglossa Boisduval, 1828 accepted as Acherontia Laspeyres, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)

Brachygnathus
 Brachygnathus Hussakof, 1909 † accepted as Hussakofia Cossmann, 1910 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Dinichthyidae (Family)
     Brachygnathus Agassiz, 1844 † accepted as Brachygnathus Agassiz, 1844 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Brachygnathus Perty, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Brachygnathus Gervais, 1848-52 † accepted as Synaphodus Pomel, 1848 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Dichobunidae (Family)

Brachygnatus
     Brachygnatus Pomel, 1848 † accepted as Synaphodus Pomel, 1848 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Dichobunidae (Family)
 Brachygnatus Sturm, 1854 accepted as Brachygnathus Perty, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Brachygonia
     Brachygonia Walsingham, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Brachygonia Kirby, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Libellulidae (Family)

Brachygramma
 Brachygramma Girault, 1912 accepted as Brachyia Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Trichogrammatidae (Family)
 Brachygramma Day, 1865 accepted as Garra Hamilton, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Brachygyne
 Brachygyne Cassini, 1827 accepted as Eriocephalus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Brachygyne (Bentham) J.K. Small, 1903 accepted as Dasistoma Rafinesque, 1819 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Brachyiulus
     Brachyiulus Verhoeff, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Julida (Order) > Julidae (Family)
     Brachyiulus Berlese, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Julida (Order) > Julidae (Family)

Brachylabis
     Brachylabis Schnabl, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Brachylabis Dohrn, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Dermaptera (Order) > Anisolabididae (Family)

Brachylepis
 Brachylepis C.A. Meyer ex Ledebour, 1829 accepted as Anabasis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Brachylepis W.J. Hooker & Arnott, 1839 (?) accepted as Melinia Decaisne in Alph. de Candolle, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Brachylepis R. Wight & Arnott in R. Wight, 1834 accepted as Decalepis R. Wight & Arnott in R. Wight, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
     Brachylepis Kolbe, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Brachylepis Karpenko & Gulyaev, 1999 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Hymenolepididae (Family)

Brachyleptus
     Brachyleptus Motschoulsky, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Kateretidae (Family)
 Brachyleptus Motschulsky, 1870 accepted as Brachyleptus Motschoulsky, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Kateretidae (Family)

Brachylister
 Brachylister Bickhardt, 1914 accepted as Reninus Lewis, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
 Brachylister Bickhardt, 1917 accepted as Reninus Lewis, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Brachylobus
 Brachylobus de Chaudoir, 1876 accepted as Chlaenius Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Brachylobus Dulac, 1867 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Brachyloma
 Brachyloma Chambers, 1878 † accepted as Brachyloma Chambers, 1878 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Brachyloma Sonder in J.G.C. Lehmann, 1845 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Brachyloma Portevin, 1914 accepted as Ipelates Reitter, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Agyrtidae (Family)
 Brachyloma Hanstein, 1854 accepted as Kohleria Regel, 1847 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Brachylophus
     Brachylophus Fischer von Waldheim, 1829 accepted as Brachyderes Schönherr, 1823 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Brachylophus Swainson, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Brachylophus Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Iguanidae (Family)

Brachymeris
 Brachymeris A.P. de Candolle, 1837 accepted as Phymaspermum Lessing, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Brachymeris Conrad in Kerr, 1875 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Ungulinidae (Family)

Brachymerus
 Brachymerus Dahlbom, 1845 accepted as Tracheliodes Morawitz, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Crabronidae (Family)
 Brachymerus Smith, 1847 accepted as Phrynomantis Peters, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Microhylidae (Family)
 Brachymerus Shaler, 1865 † accepted as Anastrophia Hall, 1867 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Pentamerida (Order) > Parastrophinidae (Family)
 Brachymerus Hope, 1841 accepted as Brachymerus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Brachymerus Chevrolat in Dejean, 1836 accepted as Iphiclus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)

Brachymetra
 Brachymetra Stossich, 1904 accepted as Ratzia Poche, 1926 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Opisthorchiida (Order) > Ratziidae (Family)
     Brachymetra Mayr, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Gerridae (Family)

Brachymonas
     Brachymonas Grassé, 1952 · Protozoa (Kingdom) > Metamonada (Phylum) > Anaeromonadea (Class) > Oxymonadida (Order) > Polymastigidae (Family)
     Brachymonas Hiraishi, Shin & Sugiyama, 1995 · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Betaproteobacteria (Class) > Burkholderiales (Order) > Comamonadaceae (Family)

Brachymycterus
     Brachymycterus Heyden, 1866 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Oedemeridae (Family)
 Brachymycterus Ferguson, 1915 accepted as Brachyrothus Marshall, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Brachymyia
     Brachymyia Parent, 1933 accepted as Brevimyia Miller, 1945 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Brachymyia Williston, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Brachymys
     Brachymys Fairmaire, 1885 accepted as Pachymys Fairmaire, 1888 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Byrrhidae (Family)
     Brachymys Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Brachymys Meyer, 1847 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Gliridae (Family)

Brachynema
 Brachynema F. von Mueller, 1862 accepted as Abrophyllum J.D. Hooker ex Bentham, 1864 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Rousseaceae (Family)
 Brachynema W. Griffith, 1854 accepted as Brachynema W. Griffith, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
     Brachynema Bentham, 1857 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Olacaceae (Family)
 Brachynema Cobb, 1893 accepted as Brachynemella Cobb, 1933 · Animalia (Kingdom) > Nematoda (Phylum) > Nematoda incertae sedis (Class) > Nemata incertae sedis (Order) > Nematoda incertae sedis (Family)
 Brachynema G. Ålvik, 1934 accepted as Brachynematella P.C. Silva, 1979 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Xanthophyceae (Class) > Tribonematales (Order) > Tribonemataceae (Family)
 Brachynema Ercegovic, 1931 accepted as Ercegovicia De Toni, 1936 · Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Pleurocapsales (Order) > Pleurocapsaceae (Family)
     Brachynema Mulsant, 1852 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Brachyneura
     Brachyneura Selys, 1871 accepted as Brachyneura Selys, 1871 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
 Brachyneura Agassiz, 1846 accepted as Brachineura Rondani, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Brachyneura Oken, 1844 accepted as Brachineura Rondani, 1840 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Brachynotus
     Brachynotus De Haan, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Varunidae (Family)
 Brachynotus Kirby, 1837 accepted as Podabrus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cantharidae (Family)

Brachynus
 Brachynus Agassiz, 1846 accepted as Brachinus Weber, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Brachynus Sturm in Germar, 1812 accepted as Brachinus Weber, 1801 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Brachyochirus
 Brachyochirus Bonaparte, 1845 accepted as Aphia Risso, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gobiiformes (Order) > Gobiidae (Family)
 Brachyochirus Nardo, 1844 accepted as Aphia Risso, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gobiiformes (Order) > Gobiidae (Family)

Brachyodon
     Brachyodon Lartet, 1868 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Artiodactyla (awaiting allocation) (Family)
 Brachyodon Trofimov, 1952 † accepted as Ergilobia Trofimov, 1958 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Entelodontidae (Family)
 Brachyodon Fürnrohr, 1827 accepted as Brachydontium A.E. Fürnrohr, 1827 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Grimmiales (Order) > Seligeriaceae (Family)
 Brachyodon Jukes-Browne, 1905 accepted as Brachidontes Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)

Brachyodus
     Brachyodus C.G.D. Nees, C.F. Hornschuch & J. Sturm, 1831 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Grimmiales (Order) > Seligeriaceae (Family)
     Brachyodus Depéret, 1895 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Anthracotheriidae (Family)

Brachyonyx
 Brachyonyx Gistl, 1834 accepted as Brachonyx Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Brachyonyx Agassiz, 1846 [2] accepted as Brachonyx Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Brachyonyx Agassiz, 1846 accepted as Mirafra Horsfield, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Alaudidae (Family)

Brachyotus
 Brachyotus Kolenati, 1856 accepted as Myotis Kaup, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Vespertilionidae (Family)
     Brachyotus Gould, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Brachypalpus
 Brachypalpus Mitrofanov, 1973 accepted as Brevipalpus Donnadieu, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tenuipalpidae (Family)
 Brachypalpus de Laporte, 1840 accepted as Laccobius Erichson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)
     Brachypalpus Macquart, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Brachypeplus
 Brachypeplus de Charpentier, 1843 † accepted as Brachystola Scudder, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)
     Brachypeplus Erichson, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)

Brachypeza
     Brachypeza Winnertz, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mycetophilidae (Family)
     Brachypeza Garay, 1972 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Brachyphlebia
     Brachyphlebia Hong & Zhang, 2004 † accepted as Orthophlebia Westwood in Brodie, 1845 † (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mecoptera (Order) > Orthophlebiidae (Family)
 Brachyphlebia Westwood, 1840 accepted as Baetis Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Baetidae (Family)

Brachyphylla
     Brachyphylla Mulsant, 1842 accepted as Omaloplia Schönherr, 1817 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Brachyphylla Gray, 1834 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)

Brachyphyllum
 Brachyphyllum Gray, 1844 accepted as Brachyphylla Gray, 1834 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)
 Brachyphyllum Chi, 1931 † accepted as Bradyphyllum Grabau, 1928 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Stauriida (Order) > Antiphyllidae (Family)
     Brachyphyllum A.T. Brongniart, 1828 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Araucariaceae (Family)

Brachyplatysoma
     Brachyplatysoma Bleeker, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Brachyplatysoma Bleeker, 1862 accepted as Brachyplatysoma Bleeker, 1862 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Brachypleura
     Brachypleura Angelin † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Brachypleura Günther, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Citharidae (Family)

Brachypoda
 Brachypoda Forel, 1879 accepted as Brachypoda Forel, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Aturidae (Family)
     Brachypoda Zhang, 1989 † accepted as (unassessed)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Brachypoda · Animalia (Kingdom) > Arthropoda (Phylum) > Cephalocarida (Class) > Brachypoda (Order) > (Family)

Brachypodella
     Brachypodella Heissig, 1972 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Rhinocerotidae (Family)
     Brachypodella Beck, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Urocoptidae (Family)
 Brachypodella Viets, 1926 accepted as Brachypoda Forel, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Aturidae (Family)

Brachypodium
     Brachypodium Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Brachypodium S.E. Bridel, 1826 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Grimmiales (Order) > Ptychomitriaceae (Family)

Brachypremna
     Brachypremna Osten-Sacken, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)
 Brachypremna Gleason, 1935 accepted as Ernestia A.P. de Candolle, 1828 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Brachyprosopus
     Brachyprosopus Olson, 1937 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Brachyprosopus Schaub, 1942 † accepted as Schaubia Camp, Welles & Green, 1949 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Felidae (Family)

Brachypteris
     Brachypteris Grisebach, 1839 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
     Brachypteris Hong, 1984 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Brachypternus
     Brachypternus Strickland, 1841 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Brachypternus Bonaparte, 1850 accepted as Brachypternus Bonaparte, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Brachypterois
     Brachypterois Fowler, 1938 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)
 Brachypterois Jordan & Seale, 1906 † accepted as Bathypterois Günther, 1878 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Ipnopidae (Family)

Brachypterus
     Brachypterus Lesson, 1836 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Brachypterus Blyth, 1852 accepted as Bradypterus Swainson, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Locustellidae (Family)
     Brachypterus Kugelann, 1794 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)
     Brachypterus Dejean, 1835 accepted as Trigonocolus Lacordaire, 1863 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Brachypterus Gravenhorst, 1829 accepted as Pterocormus Förster, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Brachypteryx
     Brachypteryx Horsfield, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)
 Brachypteryx Bonaparte, 1850 accepted as Brachypteryx Bonaparte, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Brachypteryx Owen, 1848 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Gruiformes (Order) > Rallidae (Family)
     Brachypteryx Kraatz, 1899 accepted as Syntomopteryx Kraatz, 1900 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Brachypus
 Brachypus Meyer, 1814 accepted as Apus Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Apodidae (Family)
     Brachypus Ledebour, 1841 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Brachypus Swainson, 1824 accepted as Brachypus Swainson, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Pycnonotidae (Family)
 Brachypus Guilding, 1828 accepted as Brachypus Guilding, 1828 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Brachypus Fitzinger, 1826 accepted as Brachypus Fitzinger, 1826 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gymnophthalmidae (Family)
 Brachypus Gray, 1825 accepted as Cacajao Lesson, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Pitheciidae (Family)
     Brachypus Schönherr, 1825 accepted as Brachygyius Marshall, 1939 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Brachypus Schönherr, 1826 accepted as Brachygyius Marshall, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
     Brachypus Meigen, 1824 accepted as Diaphorus Meigen, 1824 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Brachyramphus
 Brachyramphus A.P. de Candolle, 1838 accepted as Launaea Cassini in F. Cuvier, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Brachyramphus Brandt, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Alcidae (Family)

Brachyrhamphus
     Brachyrhamphus Brandt, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Brachyrhamphus Bertoni, 1901 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Passeres (awaiting allocation) (Family)
     Brachyrhamphus Carl, 1915 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Phasmatidae (Family)
     Brachyrhamphus Haglund, 1894 accepted as (unassessed)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cydnidae (Family)

Brachyrhinus
 Brachyrhinus Latreille, 1802 accepted as Otiorhynchus Germar, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Brachyrhinus Gill, 1862 accepted as Paranthias Guichenot, 1868 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Serranidae (Family)

Brachyrhopala
     Brachyrhopala Burmeister, 1865 accepted as Ischionodonta Chevrolat in Thomson, 1859 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Brachyrhopala Macquart, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Brachyrhynchocyon
     Brachyrhynchocyon Scott & Jepsen, 1936 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Amphicyonidae (Family)
 Brachyrhynchocyon Senut, 2008 † accepted as Brevirhynchocyon Senut & Georgalis, 2014 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Macroscelidea (Order) > Rhynchocyonidae (Family)

Brachyrhynchus
 Brachyrhynchus Artois & Schockaert, 2013 accepted as Brachyrhynchoides Artois & Schockaert, 2013 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Polycystididae (Family)
     Brachyrhynchus Dejean, 1821 accepted as Otiorhynchus Germar, 1822 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Brachyrhynchus Laporte, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aradidae (Family)
 Brachyrhynchus Selys, 1842 accepted as Brachyrhynchus Selys, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Brachyrhynchus Fitzinger, 1843 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Brachyrhynchus van Beneden, 1871 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Brachyrrhopala
     Brachyrrhopala Gemminger & Harold, 1872 accepted as Brachyrhopala Burmeister, 1865 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Brachyrrhopala Kertész, 1909 accepted as Brachyrhopala Macquart, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Brachyrynchus
 Brachyrynchus Laporte, 1833 accepted as Brachyrhynchus Laporte, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aradidae (Family)
     Brachyrynchus Selys in van der Maelen, 1831 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Brachys
 Brachys Zagulyaev, 1979 accepted as Eudarcia Clemens, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
     Brachys Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Brachys Solier, 1833 accepted as Brachys Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Brachysaccus
     Brachysaccus K. Mädler, 1964 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Brachysaccus Johnston, 1912 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Brachysaurus
     Brachysaurus Williston, 1897 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Brachysaurus Hallowell, 1856 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Tropiduridae (Family)

Brachyscelio
     Brachyscelio Brues, 1940 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Brachyscelio Risbec, 1950 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Brachyscelis
 Brachyscelis Schrader, 1863 accepted as Apiomorpha Rübsaamen, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Apiomorphidae (Family)
     Brachyscelis Dejean, 1834 accepted as Pachyscelis Solier, 1836 (nomen oblitum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Brachyscelis Germar, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Brachyscelis Fischer de Waldheim, 1837 accepted as Brachyscelis Dejean, 1834 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Brachysema
 Brachysema R. Brown in W.T. Aiton, 1811 accepted as Gastrolobium R. Brown in W.T. Aiton, 1811 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Brachysema Warren, 1895 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Brachysipalia
     Brachysipalia Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Brachysipalia Bernhauer, 1935 accepted as Brachysipalia Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Brachysipalia Bernhauer, 1940 accepted as Brachysipalia Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Brachysiphon
     Brachysiphon Chapman, 1906 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Saccamminidae (Family)
     Brachysiphon A.H.L. Jussieu, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Penaeaceae (Family)

Brachysoma
     Brachysoma Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)
 Brachysoma Schoenherr, 1833 accepted as Sternechus Schönherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Brachysoma Austaut, 1880 accepted as Somabrachys Kirby, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Somabrachyidae (Family)
     Brachysoma Brandt, 1835 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Brachysoma Dejean, 1821 accepted as Brachysoma Schoenherr, 1833 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Brachysomus
     Brachysomus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Brachysomus Liu in Liu, Yin, Wang, Luo & Wang, 2003 † accepted as Guizhoubrachysomus Liu, 2004 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Luganoiiformes (Order) > Luganoiidae (Family)

Brachyspira
     Brachyspira Pfeiffer, 1855 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Brachyspira Hovind-Hougen, Birch-Andersen, Henrik-Nielsen, Orholm, Pedersen, Teglbjaerg & Thaysen, 1983 · Bacteria (Kingdom) > Spirochaetota (Phylum) > Spirochaetia (Class) > Brachyspirales (Order) > Brachyspiraceae (Family)

Brachystephanus
     Brachystephanus Simpson, Minoprio & Patterson, 1962 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Oldfieldthomasiidae (Family)
     Brachystephanus C.G.D. Nees in Alph. de Candolle, 1847 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Brachysternus
     Brachysternus Guérin, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Brachysternus Dejean, 1833 accepted as Brachysternus Guérin, 1831 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Brachystira
     Brachystira Fieber, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Brachystira Mayr, 1904 accepted as Brachista Walker, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Trichogrammatidae (Family)

Brachystoma
 Brachystoma Swainson, 1837 accepted as Struthidea Gould, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)
     Brachystoma Rambur, 1842 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Nemopteridae (Family)
     Brachystoma Gardner, 1876 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Brachystoma Gray, 1847 † accepted as Brachytoma Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turridae (Family)
     Brachystoma Meigen, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)

Brachystylus
 Brachystylus de Chaudoir, 1838 accepted as Pterostichus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Brachystylus Dulac, 1867 accepted as Koeleria Persoon, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Brachystylus Schönherr, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Brachysynodontis
     Brachysynodontis Bleeker, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Mochokidae (Family)
 Brachysynodontis Bleeker, 1863 accepted as Synodontis Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Mochokidae (Family)

Brachytaenia
     Brachytaenia Stainton, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Brachytaenia Stephens, 1852 accepted as Brachytaenia Stephens, 1852 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Brachytarsus
 Brachytarsus LeConte, 1876 accepted as Trigonorhinus Wollaston, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Brachytarsus Schönherr, 1823 accepted as Anthribus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Brachyteles
     Brachyteles Spix, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Atelidae (Family)
     Brachyteles Spix & Martius, 1823 accepted as Brachyteles Spix, 1824 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Atelidae (Family)

Brachytes
     Brachytes Westwood in Hope, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coreidae (Family)
     Brachytes Hendel, 1914 accepted as Hetschkomyia Hendel, 1914 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Brachythrix
     Brachythrix McFadden, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
     Brachythrix H. Wild & G.V. Pope, 1978 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Brachythrix A. Braun in Rabenhorst, 1865 accepted as Chamaesiphon A. Braun in L. Rabenhorst, 1864 · Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Synechococcales (Order) > Chamaesiphonaceae (Family)

Brachytoma
     Brachytoma Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Pseudomelatomidae (Family)
     Brachytoma Westwood, 1874 accepted as Perreyia Brullé in Lepeletier, 1846 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pergidae (Family)

Brachytrachelus
     Brachytrachelus Schönherr, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Brachytrachelus Morawitz, 1861 accepted as Trachelobrachys Gemminger in Harold, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
     Brachytrachelus Giebel, 1850 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Brachytrema
     Brachytrema Cossmann, 1889 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Brachytrema Morris & Lycett, 1851 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Brachytrematidae (Family)

Brachytrichia
     Brachytrichia Schoch, 1896 accepted as Brachytricha Reiche, 1871 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Brachytrichia Zanardini ex Bornet & Thuret, 1886 · Bacteria (Kingdom) > Cyanobacteriota (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Symphyonemataceae (Family)

Brachytrochus
 Brachytrochus Duncan, 1876 accepted as Heterocyathus Milne Edwards & Haime, 1848 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Caryophylliidae (Family)
     Brachytrochus Reuss, 1864 † · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Caryophylliidae (Family)

Brachytron
     Brachytron Evans, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Aeshnidae (Family)
     Brachytron Selys, 1850 accepted as Brachytron Evans, 1845 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Aeshnidae (Family)

Brachytropis
 Brachytropis (A.P. de Candolle) H.G.L. Reichenbach, 1829 accepted as Polygala Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Polygalaceae (Family)
     Brachytropis Silvestri, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Paradoxosomatidae (Family)
 Brachytropis Fieber, 1858 accepted as Brachytropis Fieber, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Brachytropisoma
     Brachytropisoma Silvestri, 1897, nom. nud. accepted as Brachytropisoma Silvestri, 1897 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Opisthocheiridae (Family)
     Brachytropisoma Silvestri, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Opisthocheiridae (Family)

Brachyura
     Brachyura Kuhl & Hasselt, 1822 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
     Brachyura Spix, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Brachyurus
 Brachyurus Germar, 1829 accepted as Brachycerus Olivier, 1789 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Brachyurus Thunberg, 1822 accepted as Pitta Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Pittidae (Family)
 Brachyurus Laporte de Castelnau, 1840 accepted as Byrsops Germar, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Brachyurus Agassiz, 1846 accepted as Dendrochirus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)
     Brachyurus Schlotheim, 1832 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Brachyurus Fischer, 1808 accepted as Lemmus Link, 1795 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Cricetidae (Family)
 Brachyurus Blyth, 1852 accepted as Brachyurus Blyth, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Brachyurus Szidat, 1938 accepted as Archigetes Leuckart, 1878 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Caryophyllidea (Order) > Caryophyllaeidae (Family)
 Brachyurus Spix, 1823 accepted as Cacajao Lesson, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Pitheciidae (Family)
 Brachyurus Trouessart, 1878 accepted as Cacajao Lesson, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Pitheciidae (Family)

Brachyvalva
     Brachyvalva Olivares & Angulo, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Brachyvalva Diakonoff, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Brachyzancla
     Brachyzancla Turner, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
     Brachyzancla Turner, 1947 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Brackenridgia
 Brackenridgia Busck, 1903 accepted as Paraclemensia Busck, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Incurvariidae (Family)
     Brackenridgia Ulrich, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Trichoniscidae (Family)

Bracteola
 Bracteola Swallen, 1933 accepted as Chrysochloa Swallen, 1941 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Bracteola Rikhter, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Brada
     Brada Stimpson, 1854 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Flabelligerida (Order) > Flabelligeridae (Family)
     Brada Walker, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Bradburia
 Bradburia K.P.J. Sprengel, 1826 accepted as Bradburya Rafinesque, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Bradburia J. Torrey & A. Gray, 1842 accepted as Chrysopsis (Nuttall) S. Elliott, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Bradburia Faubel, Blome & Cannon, 1994 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Macrostomida (Order) > Macrostomidae (Family)

Bradibates
 Bradibates Trouessart, 1892 accepted as Euthyas Piersig, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Hydryphantidae (Family)
 Bradibates Gray, 1869 accepted as Bradibates Gray, 1869 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Bradlea
 Bradlea Necker ex Rafinesque, 1840 accepted as Bradlea Necker ex Rafinesque, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Bradlea Adanson, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Bradleyella
     Bradleyella Krombein, 1963 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scoliidae (Family)
     Bradleyella Woollam, 1983 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > (Family)
     Bradleyella Zimmerman, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Bradya
 Bradya Stache, 1873 † accepted as Keramosphaerina Stache, 1913 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Keramosphaeridae (Family)
     Bradya Carter, 1877 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Bradya Lang, 1944 accepted as Bradya Boeck, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Ectinosomatidae (Family)
     Bradya Boeck, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Ectinosomatidae (Family)

Bradybates
     Bradybates Hodgson in Gray, 1846 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bradybates Tschudi, 1838 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
 Bradybates Neuman, 1874 accepted as Euthyas Piersig, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Hydryphantidae (Family)
 Bradybates Reitter, 1913 accepted as Bradybatus Germar, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Bradycellus
     Bradycellus Erichson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Bradycellus Motschoulsky, 1864 accepted as Bradycellus Erichson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Bradycinetus
 Bradycinetus Horn, 1871 accepted as Bradycinetulus Cockerell, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bolboceratidae (Family)
     Bradycinetus Sars, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda incertae sedis (Family)
 Bradycinetus Schaufuss, 1882 accepted as Balearicola Semenov, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Bradylemur
     Bradylemur de Blainville, 1839 accepted as Loris Geoffroy, 1796 (junior subjective synonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Lorisidae (Family)
     Bradylemur Grandidier, 1899 † accepted as Archaeolemur Filhol, 1895 † (junior subjective synonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Archaeolemuridae (Family)

Bradynella
 Bradynella Saidova, 1975 accepted as Globocassidulina Voloshinova, 1960 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Cassidulinidae (Family)
 Bradynella Burmistrova, 1974 accepted as Globocassidulina Voloshinova, 1960 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Cassidulinidae (Family)

Bradypetes
     Bradypetes Gray, 1869 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Bradypetes Agassiz, 1846 accepted as Bradypetes Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Bradypterus
     Bradypterus Gray, 1846 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bradypterus Hodgson in Gray, 1844 accepted as Bradypterus Hodgson in Gray, 1844 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bradypterus Swainson, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Locustellidae (Family)

Bradystoma
 Bradystoma Stekhoven, 1943 accepted as Calyptronema Marion, 1870 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Oncholaimida (Order) > Enchelidiidae (Family)
     Bradystoma Schornikov & Keyser, 2004 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Paradoxostomatidae (Family)

Bradytes
 Bradytes Gistl, 1848 accepted as Bradytes Gistl, 1848 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Bradytes Dejean, 1834 accepted as (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Bradytherium
     Bradytherium Grandidier, 1901 † accepted as Palaeopropithecus Grandidier, 1899 † (junior subjective synonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Palaeopropithecidae (Family)
 Bradytherium Andrews, 1901 † accepted as Barytherium Andrews, 1901 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Proboscidea (Order) > Barytheriidae (Family)

Bragantia
 Bragantia Vandelli, 1771 accepted as Gomphrena Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Bragantia Loureiro, 1790 accepted as Thottea Rottboell, 1783 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Piperales (Order) > Aristolochiaceae (Family)

Brairdia
     Brairdia M'Coy in Griffith, 1842 † accepted as Brairdia M'Coy in Griffith, 1842 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Bairdiidae (Family)
     Brairdia M'Coy, 1844 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Bairdiidae (Family)

Brama
 Brama Bleeker, 1863 (ex Klein) accepted as Abramis Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Brama Walbaum, 1792 accepted as Abramis Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Brama Klein, 1775 accepted as Abramis Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
     Brama Bloch & Schneider, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Bramidae (Family)

Bramiltumnia
     Bramiltumnia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Bramiltumnia J.M.H. Shaw, 2004 accepted as Bramiltumnia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Bramus
     Bramus De Gregorio, 1930 † accepted as Bramus De Gregorio, 1930 † (nomen dubium)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Echinoidea (awaiting allocation) (Order) > Echinoidea (awaiting allocation) (Family)
     Bramus Pomel, 1892 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Cricetidae (Family)

Branchana
     Branchana Li, 2024 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Branchana Li in Li et al., 2011 accepted as Branchana Li, 2024 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Branchiobdella
     Branchiobdella de Blainville, 1827 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)
     Branchiobdella Odier, 1823 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Branchiobdellida (Order) > Branchiobdellidae (Family)

Branchiomma
 Branchiomma Claparède, 1869 accepted as Acromegalomma Gil & Nishi, 2017 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Sabellidae (Family)
     Branchiomma Kölliker, 1858 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Sabellidae (Family)

Branchiostoma
 Branchiostoma Newport, 1845 accepted as Rhysida Wood, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Scolopendromorpha (Order) > Scolopendridae (Family)
     Branchiostoma Costa, 1834 · Animalia (Kingdom) > Chordata (Phylum) > Leptocardii (Class) > Amphioxiformes (Order) > Branchiostomatidae (Family)
 Branchiostoma Banks, 1905 accepted as Branchiostoma Banks, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Sisyridae (Family)

Branchipolynoe
     Branchipolynoe Pettibone, 1984 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Polynoidae (Family)
     Branchipolynoe Miura & Hashimoto, 1991 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Polynoidae (Family)

Branchobdella
     Branchobdella Kearn, Whittington & Evans-Gowing, 2007 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Capsalidea (Order) > Capsalidae (Family)
     Branchobdella Moquin-Tandon, 1846 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Temnocephalidae (Family)

Brancoceras
     Brancoceras Steinmann, 1881 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Acanthoceratida (Order) > Brancoceratidae (Family)
     Brancoceras Hyatt, 1884 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Brandella
     Brandella Gray, 1869 accepted as Villogorgia Duchassaing & Michelloti, 1862 (junior subjective synonym)· Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Acanthogorgiidae (Family)
 Brandella R.R. Mill, 1986 accepted as Adelocaryum A. Brand, 1915 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Brandesia
     Brandesia Stossich, 1899 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Lecithodendriidae (Family)
 Brandesia C.F.P. Martius, 1825 accepted as Alternanthera Forsskål, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Brandonia
     Brandonia Perkins, 1904 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Brandonia Bonaparte, 1990 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Dryolestida (Order) > Brandoniidae (Family)

Brandtia
     Brandtia Spence Bate, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Acanthogammaridae (Family)
 Brandtia Kunth, 1831 accepted as Arundinella Raddi, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Brandtia R. Hoshina in Hoshina et al., 2017 accepted as Carolibrandtia R. Hoshina & T. Nakada, 2018 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Chlorellaceae (Family)

Branisella
     Branisella Hoffstetter, 1969 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > (Family)
     Branisella Pribyl & Vanek, 1981 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Branta
     Branta Boie, 1822 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Branta Oken, 1815 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Branta Scopoli, 1769 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)

Brasadastele
     Brasadastele J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Brasadastele J.M.H. Shaw, 2004 accepted as Brasadastele J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Brascidostele
     Brascidostele J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Brascidostele J.M.H. Shaw, 2004 accepted as Brascidostele J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Brasilia
 Brasilia Cossmann, 1918 † accepted as Buckmanina Cossmann, 1920 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)
 Brasilia G.M. Barroso, 1962 accepted as Calea Linnaeus, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Brasilia Buckman, 1898 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
 Brasilia Clarke, 1913 † accepted as Chapadella Greger, 1920 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulida (awaiting allocation) (Family)

Brasiliana
 Brasiliana Ersch & Gruber, 1835 accepted as Hylocharis Boie, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)
     Brasiliana Lallemand, 1959 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Brasiliana Dias, 1963 accepted as Amblyomma Koch, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)

Brasiliella
     Brasiliella Troelsen, 1978 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Squamulinidae (Family)
     Brasiliella C. Zimmermann, 1918 · Chromista (Kingdom) > Heterokontophyta (Phylum) > (Class) > Bacillariophytina_(awaiting_allocation) (Order) > (Family)
     Brasiliella Mandl, 1963 accepted as Brasiella Rivalier, 1954 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)

Brasilina
 Brasilina Clarke, 1921 † accepted as Chapadella Greger, 1920 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulida (awaiting allocation) (Family)
     Brasilina Buckman, 1899 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Brasilium
     Brasilium J.F. Gmelin, 1791 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindales (awaiting allocation) (Family)
     Brasilium Pic, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melandryidae (Family)

Brasiloniscus
     Brasiloniscus Cardoso, Campos-Filho & Araujo, 2018 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Pudeoniscidae (Family)
     Brasiloniscus Lemos de Castro, 1973 accepted as Brasiloniscus Cardoso, Campos-Filho & Araujo, 2018 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Pudeoniscidae (Family)

Brassavola
     Brassavola R. Brown in W.T. Aiton, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Brassavola Adanson, 1763 accepted as Brassavola Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Brassia
 Brassia A. Massalongo, 1860 accepted as Thelotrema Acharius, 1803 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Graphidales (Order) > Thelotremataceae (Family)
     Brassia R. Brown in W.T. Aiton, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Brassochilum
     Brassochilum J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Brassochilum J.M.H. Shaw, 2004 accepted as Brassochilum J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Brassopsis
     Brassopsis J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Brassopsis J.M.H. Shaw, 2004 accepted as Brassopsis J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Brassostele
     Brassostele J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Brassostele J.M.H. Shaw, 2004 accepted as Brassostele J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Braunia
     Braunia Hornschuch, 1828 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Neckeraceae (Family)
 Braunia R. Givulescu, 1970 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)
 Braunia Leon, 1908 accepted as Ligula Bloch, 1782 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Diphyllobothriidea (Order) > Diphyllobothriidae (Family)
 Braunia J. Rick, 1934 accepted as Brauniella Rick ex R. Singer, 1955 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Strophariaceae (Family)
     Braunia Bruch & W.P. Schimper in Bruch, W.P. Schimper & Gümbel, 1846 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hedwigiales (Order) > Hedwigiaceae (Family)

Braunsia
     Braunsia Schwantes, 1928 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Braunsia Kriechbaumer, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
     Braunsia Buckman, 1902 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Hildoceratidae (Family)

Braunsiella
 Braunsiella Escherich, 1904 accepted as Hemilepisma Paclt, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Zygentoma (Order) > Lepismatidae (Family)
     Braunsiella Raffray, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Braunsiella Enderlein, 1928 accepted as Brasia Strand, 1932 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Braunsina
 Braunsina Escherich, 1904 accepted as Hemilepisma Paclt, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Zygentoma (Order) > Lepismatidae (Family)
     Braunsina Buckman, 1902 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Braya
     Braya Nolan & Cribb, 2006 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Diplostomida (Order) > Aporocotylidae (Family)
     Braya Sternberg & Hoppe, 1815 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Brazieria
 Brazieria Petterd, 1889 accepted as Petterdiana Brazier, 1896 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
     Brazieria Ancey, 1887 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Zonitidae (Family)

Brebissonia
     Brebissonia Grunow, 1860 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Bacillariophyceae (Class) > Cymbellales (Order) > Cymbellaceae (Family)
 Brebissonia Spach, 1835 accepted as Fuchsia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Onagraceae (Family)

Brehmia
     Brehmia Schrank, 1823-1824 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Brehmia W.H. Harvey, 1842 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianales (awaiting allocation) (Family)

Brehmiella
     Brehmiella Pascher, 1928 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Chrysophyceae (Class) > Chromulinales (Order) > Chrysamoebaceae (Family)
 Brehmiella Chappuis, 1929 accepted as Mrazekiella Brehm, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Canthocamptidae (Family)

Bremeria
     Bremeria S.G. Razafimandimbison & G.D. Alejandro, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Bremeria Tutt, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
     Bremeria Moore, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Bremeria Alphéraky in Romanoff, 1892 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)

Bremia
 Bremia Kriechbaumer, 1890 accepted as Bremiella Dalla Torre, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Bremia Regel, 1843 · Chromista (Kingdom) > Oomycota (Phylum) > Peronosporomycetes (Class) > Peronosporales (Order) > Peronosporaceae (Family)
     Bremia Robineau-Desvoidy, 1863 accepted as Bremia Robineau-Desvoidy, 1863 (unreplaced junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Bremia Rondani, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Bremiella
     Bremiella G.W. Wilson, 1914 · Chromista (Kingdom) > Oomycota (Phylum) > Peronosporomycetes (Class) > Peronosporales (Order) > Peronosporaceae (Family)
     Bremiella Dalla Torre, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Bremus
 Bremus Panzer, 1801 accepted as Bremus Panzer, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Bremus Billberg, 1828 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Brenesia
     Brenesia Caballero & Caballero, 1969 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Lecithodendriidae (Family)
 Brenesia Schlechter, 1923 accepted as Pleurothallis R. Brown in W.T. Aiton, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Brennania
     Brennania Vercammen-Grandjean, 1954 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Brennania Philip, 1941 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)
     Brennania Radford, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombiculidae (Family)

Brenthidomimus
 Brenthidomimus Günther, 1943 accepted as Alloscolytroproctus Hustache, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
 Brenthidomimus Guenther, 1942 accepted as Alloscolytroproctus Hustache, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Brenthus
 Brenthus Illiger, 1801 accepted as Brentus Fabricius, 1787 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Brenthus Sundevall, 1872 accepted as Brenthus Sundevall, 1872 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Brentus
 Brentus Panzer, 1788 accepted as Arrenodes Shoenherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Brentus Fabricius, 1787 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Brephia
     Brephia Heinemann, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Brephia Hübner, 1822 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Brephulus
     Brephulus Beck, 1837 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Brephulus Westerlund, 1902 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Enidae (Family)
     Brephulus Westerlund, 1898 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bresadolina
     Bresadolina J. Rick, 1928 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Bresadolina W. Brinkmann, 1909 accepted as Cotylidia P. Karsten, 1881 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricomycetes incertae sedis (Order) > Agaricomycetes incertae sedis (Family)

Brethesia
     Brethesia Maia, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
 Brethesia Timberlake, 1919 accepted as Brethesiella Porter, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
     Brethesia Schrottky, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Brethesia Linsenmaier, 1985 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chrysididae (Family)

Brethesiella
     Brethesiella Linsenmaier, 1987 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chrysididae (Family)
     Brethesiella Porter, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
 Brethesiella Timberlake, 1920 accepted as Brethesiella Porter, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Bretonia
     Bretonia C.E. Bertrand & Hovalacque in Bertrand & Renault, 1892 † · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Bretonia Derbès & Solier, 1851 accepted as · Chromista (Kingdom) > Heterokontophyta (Phylum) > Xanthophyceae (Class) > (Order) > (Family)
     Bretonia Schweitzer, Feldmann, Franţescu & Klompmaker, 2012 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Feldmanniidae (Family)

Breuningia
 Breuningia Matsushita, 1943 accepted as Parapolytretus Breuning, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Breuningia Villiers, 1942 accepted as Parametopides Breuning, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Brevecarphurus
     Brevecarphurus Wittmer, 1950 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Brevecarphurus Pic, 1950 accepted as Microcarphurus Pic, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)

Brevicaudus
     Brevicaudus Shaposhnikov, 1964 accepted as Thuleaphis Hille Ris Lambers, 1960 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
     Brevicaudus Chen & Jin in Chen et al., 2023 accepted as Brevicaudus Chen & Jin in Chen et al., 2023 (unreplaced junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Cunaxidae (Family)

Breviceps
 Breviceps Swainson, 1838 accepted as Bagre Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ariidae (Family)
     Breviceps Merrem, 1820 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Microhylidae (Family)

Breviclavatoscydmaenus
 Breviclavatoscydmaenus Franz, 1993 accepted as Scydmaenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Breviclavatoscydmaenus Franz, 1994 accepted as Scydmaenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Brevicollis
     Brevicollis Kott, 1990 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Ascidiacea (awaiting allocation) (Order) > Ascidiacea (awaiting allocation) (Family)
 Brevicollis Marseul, 1879 accepted as Anthicus Paykull, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthicidae (Family)

Brevinema
     Brevinema Defosse, Johnson, Paster, Dewhirst & Fraser, 1995 · Bacteria (Kingdom) > Spirochaetota (Phylum) > Spirochaetia (Class) > Brevinematales (Order) > Brevinemataceae (Family)
 Brevinema Stegaresku, 1980 accepted as Longidorus Micoletzky, 1922 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Dorylaimida (Order) > Longidoridae (Family)
     Brevinema Rubtsov, 1978 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Mermithida (Order) > Tetradonematidae (Family)

Breviredlichia
     Breviredlichia Zhang & Lin in Zhang, Lu, Zhu, Qian, Lin, Zhou, Zhang & Yuan, 1980 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Breviredlichia Chang & Lin, 1978 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Redlichiida (Order) > Redlichiida (awaiting allocation) (Family)

Brevisiana
     Brevisiana Fagot, 1892 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Brevisiana Boulard, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Brevispina
 Brevispina Cavalier-Smith in Scoble & Cavalier-Smith, 2014 accepted as Paraphysomonas De Saedeleer, 1930 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Chrysophyceae (Class) > Paraphysomonadales (Order) > Paraphysomonadaceae (Family)
     Brevispina Smith-Herron, Cook & Cook, 2014 · Chromista (Kingdom) > Miozoa (Phylum) > Paragregarea (Class) > Stenophorida (Order) > Brevispinidae (Family)

Brevistoma
 Brevistoma Mukhina, 1981 accepted as Mukhina Özdikmen, 2010 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Panagrolaimidae (Family)
     Brevistoma Tjeder, 1967 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Nemopteridae (Family)

Brevoortia
     Brevoortia Gill, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Alosidae (Family)
 Brevoortia A. Wood, 1867 accepted as Dichelostemma Kunth, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)

Breyeria
     Breyeria Preudhomme de Borre, 1875 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Palaeodictyoptera (Order) > Palaeodictyoptera (awaiting allocation) (Family)
 Breyeria Janse, 1920 accepted as Eubreyeria Fletcher in Watson, Fletcher & Nye, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Breynia
 Breynia Linnaeus, 1753 accepted as Quadrella (A.P. de Candolle) J.S. Presl in Berchtold & J.S. Presl, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)
     Breynia Desor in Agassiz & Desor, 1847 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Loveniidae (Family)
     Breynia J.R. Forster & J.G.A. Forster, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)

Bria
 Bria de Gregorio, 1890 accepted as Gregorioiscala Cossmann, 1912 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Epitoniidae (Family)
 Bria Giebel, 1856 accepted as Sylvicola Harris, 1776 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anisopodidae (Family)
     Bria de Boury, 1891 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Brianella
     Brianella Huddleston, 1982 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Holothuroidea (awaiting allocation) (Order) > Holothuroidea (awaiting allocation) (Family)
 Brianella Monard, 1926 accepted as Brianola Monard, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Canuelloida (Order) > Canuellidae (Family)
     Brianella Wilson, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Lernaeopodidae (Family)

Briania
     Briania D.R. Reynolds, 1989 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Meliolinaceae (Family)
     Briania Boucek, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
     Briania Chasen & Kloss, 1930 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Briania Edgecombe, 1994 † accepted as Brianurus Edgecombe & Fortey, 1995 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Encrinuridae (Family)

Briardia
     Briardia Munier-Chalmas, 1884 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Briardia P.A. Saccardo, 1885 accepted as Duebenia E.M. Fries, 1849 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)

Briarea
 Briarea Duchassaing & Michelotti, 1860 accepted as Briareum Blainville, 1834 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Scleralcyonacea (Order) > Briareidae (Family)
 Briarea Herrmannsen, 1846 accepted as Briarea Herrmannsen, 1846 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
 Briarea Corda in J. Sturm, 1831 accepted as Aspergillus P. Micheli ex Haller, 1768 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Aspergillaceae (Family)

Briareus
     Briareus Quoy & Gaimard, 1826 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
 Briareus Hickson, 1883 accepted as Briareum Blainville, 1834 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Scleralcyonacea (Order) > Briareidae (Family)
     Briareus A.H. Knoll, 1992 † · Biota incertae sedis (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Briba
     Briba Amaral, 1935 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)
     Briba do Amaral, 1937 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Brickellia
     Brickellia S. Elliott, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Brickellia Rafinesque, 1808 accepted as Brickellia Rafinesque, 1808 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Polemoniaceae (Family)

Bridgesia
     Bridgesia Bertero ex Cambessèdes, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
 Bridgesia W.J. Hooker, 1831 accepted as Bridgesia W.J. Hooker, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Bridgesia W.J. Hooker & Arnott, 1833 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Phytolaccaceae (Family)
 Bridgesia Backeberg, 1935 accepted as Rebutia K. Schumann, 1895 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)

Briggsia
     Briggsia Craig & Randall, 2009 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gobiesociformes (Order) > Gobiesocidae (Family)
     Briggsia Craib, 1919 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Brightonia
     Brightonia Kier, 1957 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Holasteroida (Order) > Somaliasteridae (Family)
     Brightonia T.M. Harris, 1932 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Brightonia Casey, 1961 † accepted as Brightonella Casey, 1961 † (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Brignolia
     Brignolia A. Bertoloni, 1813 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Brignolia A.P. de Candolle, 1830 accepted as Isertia Schreber, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Brignolia Dumitresco & Georgesco, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Oonopidae (Family)

Briseis
 Briseis Kerremans, 1893 accepted as Melobasis Laporte & Gory, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Briseis Saunders, 1871 accepted as Briseis Saunders, 1871 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Briseis R.A. Salisbury, 1866 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)

Brissoides
     Brissoides Leske, 1778 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Brissoides Schinz, 1825 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Brissoides Cuvier, 1817 accepted as · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Brissoides Lambert & Thiéry, 1924 accepted as Eupatagus L. Agassiz in Agassiz & Desor, 1847 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Eupatagidae (Family)

Brissomorpha
     Brissomorpha Laube, 1870 † accepted as Brissomorpha Laube, 1871 † (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Prenasteridae (Family)
 Brissomorpha Laube, 1871 † accepted as Prenaster Desor, 1853 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Prenasteridae (Family)

Brissonia
     Brissonia Hartlaub, 1860 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Brissonia Necker ex Desvaux, 1814 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Brissus
 Brissus Leske, 1778 accepted as Brissus Leske, 1778 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Brissidae (Family)
 Brissus Link, 1807 accepted as Brissus Link, 1807 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Brissus Oken, 1815 accepted as Brissus Oken, 1815 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Brissus Müller, 1781 accepted as Brissus Müller, 1781 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Brissus Modeer, 1793 accepted as Brissus Modeer, 1793 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Brissidae (Family)
 Brissus Dahl, 1823 accepted as Strophosoma Billberg, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Brissus Gray, 1825 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Brissidae (Family)

Bristowia
     Bristowia Reimoser, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Bristowia Saaristo, 1978 accepted as Bristowiella Saaristo, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Lycosidae (Family)

Brittenia
     Brittenia Edwards, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Brittenia Cogniaux in Boerlage, 1890 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Brittonella
     Brittonella Fisher, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Brittonella H.H. Rusby, 1893 accepted as Mionandra Grisebach, 1874 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
     Brittonella Kortchagin in Korchagin, 1989 accepted as Hedbergella Brönnimann & Brown, 1958 † (junior homonym)· Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Hedbergellidae (Family)

Brittonema
     Brittonema Kirejtshuk, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)
 Brittonema Thorne, 1967 accepted as Brasilaimus Lordello & Zamith, 1957 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Dorylaimida (Order) > Actinolaimidae (Family)

Brixia
     Brixia Walker, 1859 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Brixia Stål, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cixiidae (Family)
     Brixia Jóźwiak, Drumm, Bird & Błażewicz, 2018 accepted as Brixitanais Kakui, 2024 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Akanthophoreidae (Family)

Brizopyrum
 Brizopyrum Link, 1827 accepted as Desmazeria Dumortier, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Brizopyrum O. Stapf, 1898 accepted as Tribolium Desvaux, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Brizopyrum J.S. Presl, 1830 accepted as Distichlis Rafinesque, 1819 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Brocchia
 Brocchia Bronn, 1828 † accepted as Capulus Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Capulidae (Family)
 Brocchia Tenore, 1845 accepted as Simmondsia Nuttall, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Simmondsiaceae (Family)
     Brocchia Visiani, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Brocchina
 Brocchina Pallary, 1912 † accepted as Brochina Gray, 1857 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Caecidae (Family)
 Brocchina Fulton, 1922 accepted as Brocchinia Jousseaume, 1887 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Cancellariidae (Family)

Brocchinia
     Brocchinia Jousseaume, 1887 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Cancellariidae (Family)
     Brocchinia J.H. Schultes in J.A. Schultes & J.H. Schultes, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)

Brochidium
 Brochidium Perty, 1849 accepted as Ophiocytium Nägeli, 1849 · Chromista (Kingdom) > Heterokontophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Ophiocytiaceae (Family)
     Brochidium Koken, 1889 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Liotiidae (Family)

Brochus
 Brochus Brown, 1827 accepted as Caecum Fleming, 1813 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Caecidae (Family)
 Brochus Germar, 1819 accepted as Bronchus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Brochus Oken, 1838 accepted as Odobenus Brisson, 1762 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Odobenidae (Family)

Brodenia
     Brodenia Surcouf, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)
     Brodenia Gedoelst, 1913 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Dicrocoeliidae (Family)

Broeckella
     Broeckella E. Munier-Chalmas ex L. Morellet & J. Morellet, 1922 † (uncertain)· Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)
     Broeckella Sherborn, 1893 accepted as Broeckella Sherborn, 1893 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Broeckia
     Broeckia Carter, 1877 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Broeckia Koninck, 1885 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Broeggeria
     Broeggeria Nathorst, 1914-1915 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Protolepidodendrales (Order) > Blasariaceae (Family)
     Broeggeria Walcott, 1903 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Elkaniidae (Family)
 Broeggeria Bancroft, 1933 † accepted as Broeggerolithus Bancroft, 1935 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Trinucleidae (Family)

Broilisaurus
     Broilisaurus Hoffstetter, 1953 † accepted as Eichstaettisaurus Kuhn, 1958 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Eichstaettisauridae (Family)
     Broilisaurus Kuhn, 1938 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anthracosauria (Order) > Anthracosauridae (Family)

Bromelia
 Bromelia Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)
     Bromelia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)

Bromeloecia
     Bromeloecia Spuler, 1925 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)
     Bromeloecia Spuler, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)

Bromius
 Bromius Baly, 1865 accepted as Trichochrysea Baly, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Bromius Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Bromius Redtenbacher, 1845 accepted as Bromius Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Bromus
     Bromus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Bromus J.A. Scopoli, 1777 accepted as Triticum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Brongniartella
     Brongniartella Reed, 1918 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Bathycheilidae (Family)
     Brongniartella Bory de Saint-Vincent, 1822 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)

Brongniartia
     Brongniartia Kunth in Humboldt, Bonpland & Kunth, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Brongniartia Blume, 1825 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Monimiaceae (Family)
     Brongniartia Salter, 1865 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Brongniartia Eights, 1833 accepted as Ceratoserolis Cals, 1977 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Serolidae (Family)
     Brongniartia Leach, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
     Brongniartia Eaton, 1832 † accepted as Isotelus De Kay, 1824 † (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Asaphidae (Family)

Brongniartites
     Brongniartites Unger, 1845 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Brongniartites Handlirsch, 1919 † accepted as (unassessed)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Palaeodictyoptera (Order) > Palaeodictyoptera (awaiting allocation) (Family)
 Brongniartites Zalessky, 1927 † accepted as Brongniartites Zalessky, 1927 † · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Bronislavia
     Bronislavia Rakowski, 1901 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Bronislavia Semenov, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Bronteopsis
     Bronteopsis Nicholson & Etheridge, 1879 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Tsinaniidae (Family)
     Bronteopsis Salter, 1866 † accepted as Bronteopsis Nicholson & Etheridge, 1879 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Tsinaniidae (Family)

Brontes
 Brontes Montfort, 1810 accepted as Haustellum Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
 Brontes Fabricius, 1801 accepted as Uleiota Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Silvanidae (Family)
 Brontes Valenciennes in Cuvier & Valenciennes, 1840 accepted as Astroblepus Humboldt, 1805 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Astroblepidae (Family)
 Brontes Goldfuss, 1839 † accepted as Brontes Goldfuss, 1839 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Thysanopeltidae (Family)

Bronteus
 Bronteus Goldfuss, 1843 † accepted as Bronteus Goldfuss, 1843 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Thysanopeltidae (Family)
     Bronteus Rafinesque, 1815 accepted as Bronteus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Brontocephalina
     Brontocephalina Chugaeva, 1972 † accepted as Brontocephalina Chugaeva, 1972 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Brontocephalina Chugaeva, 1975 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Brontocephalus
     Brontocephalus Kolobova, 1977 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Brontocephalus Kolobova, 1969 † accepted as Brontocephalus Kolobova, 1969 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Brooksella
     Brooksella Walcott, 1898 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Reticulosa (Order) > Protospongiidae (Family)
     Brooksella Kelton, 1979 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Brooksella accepted as Nelsonophryne Frost, 1987 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Microhylidae (Family)

Brooksia
 Brooksia accepted as Brookesia Gray, 1865 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Chamaeleonidae (Family)
     Brooksia Hansford, 1956 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dothideomycetes incertae sedis (Family)
     Brooksia Metcalf, 1918 · Animalia (Kingdom) > Chordata (Phylum) > Thaliacea (Class) > Salpida (Order) > Salpidae (Family)

Brooksiella
     Brooksiella Rego, Chubb & Pavanelli, 1999 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Proteocephalidea (Order) > Proteocephalidae (Family)
     Brooksiella Vockeroth, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Scathophagidae (Family)

Brookvalichnus
     Brookvalichnus Webby, 1970 † (uncertain)· Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > (Family)
     Brookvalichnus Tandon & Bhatia, 1978 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)

Brosme
 Brosme Rafinesque, 1815 accepted as · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Lotidae (Family)
     Brosme Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Lotidae (Family)

Brosmus
 Brosmus Fleming, 1828 accepted as Brosme Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Lotidae (Family)
 Brosmus Stark, 1828 accepted as Brosme Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Lotidae (Family)

Broteas
 Broteas Agassiz, 1846 accepted as Brotheas Koch, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Chactidae (Family)
 Broteas Lovén, 1847 accepted as Paradiaptomus Daday, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Diaptomidae (Family)

Brotella
 Brotella Kaup, 1858 accepted as Sirembo Bleeker, 1857 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ophidiiformes (Order) > Ophidiidae (Family)
 Brotella Rovereto, 1899 accepted as Paracrostoma Cossmann, 1900 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Pachychilidae (Family)

Brotera
 Brotera Vellozo, 1829 accepted as Melhania Forsskål, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Brotera Willdenow, 1803 accepted as Cardopatium A.L. Jussieu, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Brotera K.P.J. Sprengel, 1801 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Brotera Cavanilles, 1799 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Brotera K.P.J. Sprengel, 1802 accepted as Hyptis N.J. Jacquin, 1787 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Broteroa
 Broteroa A.P. de Candolle, 1836 accepted as Hyptis N.J. Jacquin, 1787 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Broteroa C.E.O. Kuntze, 1891 accepted as Cardopatium A.L. Jussieu, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Brotheas
     Brotheas Koch, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Chactidae (Family)
 Brotheas Gervais, 1844 accepted as Buthus Leach, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Buthidae (Family)

Brotherus
 Brotherus Budde-Lund, 1908 accepted as Argathona Stebbing, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Corallanidae (Family)
 Brotherus Imhoff, 1856 accepted as Brotheus Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)

Brotheus
     Brotheus Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
     Brotheus Koch, 1837 accepted as Brotheas Koch, 1837 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Chactidae (Family)
     Brotheus Distant, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Brotis
     Brotis Hübner, 1823 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Brotis Hübner, 1821 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Brotzenella
     Brotzenella Vasilenko, 1958 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Cancrisidae (Family)
 Brotzenella Podobina, 1975 † accepted as Gavelinella Brotzen, 1942 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Gavelinellidae (Family)

Brotzenia
 Brotzenia Horowitz, 1975 † accepted as Dichadogonyaulax W.A.S. Sarjeant, 1966 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)
 Brotzenia Hofker, 1954 † accepted as Epistomina Terquem, 1883 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Robertinida (Order) > Epistominidae (Family)

Broughtonia
     Broughtonia Harz, 1969 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Broughtonia R. Brown in W.T. Aiton, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Brounia
     Brounia Sharp, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptilodactylidae (Family)
 Brounia Raffray, 1898 accepted as Whitea Hutton, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Brounia Cameron, 1945 accepted as Brouniana Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Brounia Blackwelder, 1952 accepted as Brouniana Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Brouniphylax
     Brouniphylax Strand, 1943 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ulodidae (Family)
     Brouniphylax Leschen & Bouchard, 2025 accepted as Brouniphylax Strand, 1943 (junior objective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ulodidae (Family)

Broussonetia
     Broussonetia L'Héritier de Brutelle ex Ventenat, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Moraceae (Family)
 Broussonetia Ortega, 1798 accepted as Sophora Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Brownia
     Brownia Johnson in Mathison, 2021 accepted as Billbrownia Johnson, 2023 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Brownia Nunberg, 1963 accepted as Ambrosiodmus Hopkins, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Brownia Adams, 1858 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Brownia d'Orbigny in Sagra, 1841 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Brucea
     Brucea J.F. Miller, 1779-1780 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Simaroubaceae (Family)
     Brucea J. Rikkinen, 2003 accepted as Bruceomyces J. Rikkinen in Tuovila et al., 2012 (junior homonym)· Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Lecanorales incertae sedis (Family)

Brucella
     Brucella Meyer & Shaw, 1920 (Approved Lists, 1980) · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Alphaproteobacteria (Class) > Hyphomicrobiales (Order) > Brucellaceae (Family)
 Brucella Ritchie, 1907 accepted as Zygophylax Quelch, 1885 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Lafoeidae (Family)

Bruchella
 Bruchella Sturm, 1826 accepted as Urodon Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Bruchella Navás, 1920 accepted as Leptohyphes Eaton, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Leptohyphidae (Family)

Bruchia
     Bruchia Schwägrichen, 1824 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Dicranales (Order) > Bruchiaceae (Family)
     Bruchia Weise, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Bruchia Spaeth, 1907 accepted as Carlobruchia Spaeth, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Bruchia Hornschuch, 1825 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Hypnaceae (Family)

Bruchus
 Bruchus Müller, 1764 accepted as Ptinus Linnaeus, 1767 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Bruchus Geoffroy, 1762 accepted as Ptinus Linnaeus, 1767 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
     Bruchus Linnaeus, 1767 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Brucia
 Brucia Pagenstecher, 1909 accepted as Bruceia Neumoegen, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Brucia Cossmann, 1920 † accepted as Haplovoluta Wade, 1918 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Fasciolariidae (Family)

Bruesia
 Bruesia Perkins, 1905 accepted as Halictophagus Dale in Curtis, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Strepsiptera (Order) > Halictophagidae (Family)
     Bruesia Ashmead, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Mutillidae (Family)
     Bruesia Kieffer, 1913 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Serphidae (Family)

Brugmansia
     Brugmansia Persoon, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)
 Brugmansia Blume, 1827 accepted as Rhizanthes Dumortier, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Rafflesiaceae (Family)

Bruguiera
 Bruguiera Du Petit-Thouars, 1806 accepted as Lumnitzera Willdenow, 1803 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Combretaceae (Family)
     Bruguiera Savigny in Lamarck, 1798 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Rhizophoraceae (Family)

Bruguieria
 Bruguieria G.A.W. Arnott, 1838 accepted as Bruguiera Savigny in Lamarck, 1798 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Rhizophoraceae (Family)
     Bruguieria Prever, 1902 † (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Brullea
     Brullea Blanchard (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Brullea Laporte, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Brundinia
 Brundinia Roback, 1978 accepted as Brundiniella Roback, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
     Brundinia Tottenham, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Brunella
 Brunella G.W. Smith, 1909 accepted as Calamoecia Brady, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Centropagidae (Family)
     Brunella Forel, 1917 accepted as Malagidris Bolton & Fisher, 2014 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Brunella P. Miller, 1754 accepted as Prunella Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Brunellia
     Brunellia Ruiz & Pavón, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Brunelliaceae (Family)
     Brunellia Mola, 1932 (uncertain)· Animalia (Kingdom) > Gastrotricha (Phylum) > Gastrotricha (awaiting allocation) (Class) > Gastrotricha (awaiting allocation) (Order) > Gastrotricha (awaiting allocation) (Family)

Brunerella
     Brunerella Young, 1952 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Brunerella (uncertain)· Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Brunia
     Brunia Moore, 1878 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Brunia J. Tempere ex G.B. De Toni, 1894 † accepted as Neobrunia O. Kuntze, 1894 † · Chromista (Kingdom) > Heterokontophyta (Phylum) > Coscinodiscophyceae (Class) > Asterolamprales (Order) > Neobruniaceae (Family)
     Brunia Lamarck, 1785 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Bruniales (Order) > Bruniaceae (Family)
 Brunia Linnaeus, 1753 accepted as Brunia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Bruniales (Order) > Bruniaceae (Family)

Brunnea
 Brunnea Brunner von Wattenwyl, 1895 accepted as Brunneana Uvarov, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Brunnea Dupont, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Brunneria
     Brunneria McNeill, 1897 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Brunneria Saussure, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Coptopterygidae (Family)

Brunonia
     Brunonia Müller, 1898 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Brunonia J.E. Smith ex R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Goodeniaceae (Family)

Brunswickia
     Brunswickia Wherry, 1916 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Brunswickia Howell, 1937 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariidae (Family)

Brutaspis
     Brutaspis Ivshin, 1983 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Brutaspis Ivshin, 1962 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Brya
 Brya Vellozo, 1829 accepted as Hirtella Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Chrysobalanaceae (Family)
     Brya P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Bryanella
     Bryanella Blair, 1928 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Bryanella China, 1930 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)

Bryanictis
     Bryanictis MacIntyre, 1965 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Viverravidae (Family)
     Bryanictis Maclntyre, 1966 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Viverravidae (Family)

Bryantella
     Bryantella Wolin et al., 2004 accepted as Marvinbryantia Wolin et al., 2008 (junior homonym)· Bacteria (Kingdom) > Bacillota (Phylum) > Clostridia (Class) > Eubacteriales (Order) > Lachnospiraceae (Family)
     Bryantella Chickering, 1946 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Bryantella Britton, 1957 accepted as Brittonius Özdikmen & Demir, 2008 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Bryantia
 Bryantia Webb in Gaudichaud-Beaupré, 1841 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Pandanales (Order) > Pandanaceae (Family)
     Bryantia Schaus, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Bryantia Mello-Leitao, 1946 accepted as Bryantina Brignoli, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pholcidae (Family)
     Bryantia Medvedev, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Bryantiella
     Bryantiella J.M. Porter in J.M. Porter & L.A. Johnson, 2000 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Polemoniaceae (Family)
     Bryantiella Medvedev, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Bryantina
     Bryantina Brignoli, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pholcidae (Family)
     Bryantina Malloch, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Bryaxis
     Bryaxis Kugelann, 1794 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Bryaxis Leach, 1817 accepted as Rybaxis Saulcy, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Bryaxis G.O. Sars, 1901 accepted as Bryaxona Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Aetideidae (Family)

Brychaetus
     Brychaetus Woodward, 1901 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osteoglossiformes (Order) > Osteoglossiformes (awaiting allocation) (Family)
     Brychaetus Agassiz, 1845 † accepted as Brychaetus Woodward, 1901 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osteoglossiformes (Order) > Osteoglossiformes (awaiting allocation) (Family)

Bryodema
 Bryodema Hull, 1966 accepted as Bryodemina Hull, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
     Bryodema Fieber, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Bryodemella
     Bryodemella Yin, 1982 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Bryodemella Yin, 1984 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Bryodes
     Bryodes Bentham in Alph. de Candolle, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Phrymaceae (Family)
 Bryodes R.A. Philippi, 1895 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Santalaceae (Family)

Bryolophus
     Bryolophus Ehrenberg, 1839 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
 Bryolophus Jordan & Snyder, 1902 accepted as Bryozoichthys Whitley, 1931 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Stichaeidae (Family)

Bryomima
     Bryomima Turner, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Bryomima Staudinger, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Bryomyces
     Bryomyces P. Döbbeler, 1978 accepted as Bryobroma Döbbeler & Greiff, 2024 (junior homonym)· Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Pseudoperisporiaceae (Family)
     Bryomyces Miquel, 1839 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Orthotrichales (Order) > Orthotrichaceae (Family)

Bryonopsis
 Bryonopsis Arnott in R. Wight, 1840 accepted as Kedrostis Medikus, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)
     Bryonopsis C.S. Rafinesque, 1814 (uncertain)· Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Bryopsidaceae (Family)

Bryonosema
     Bryonosema Canning, Refardt, Vossbrinck, Okamura & Curry, 2004 · Fungi (Kingdom) > Rozellomycota (Phylum) > Microsporidea (Class) > Neopereziida (Order) > Neopereziidae (Family)
     Bryonosema Canning, Refardt, Vossbrinck, Okamura & Curry, 2002 accepted as Bryonosema Canning, Refardt, Vossbrinck, Okamura & Curry, 2004 (unavailable name)· Fungi (Kingdom) > Rozellomycota (Phylum) > Microsporidea (Class) > Neopereziida (Order) > Neopereziidae (Family)

Bryopa
     Bryopa Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Clavagellidae (Family)
     Bryopa Gray, 1840 accepted as Bryopa Gray, 1847 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Clavagellidae (Family)

Bryophila
     Bryophila Treitschke, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Bryophila Carpenter, 1864 accepted as Philobrya Carpenter, 1872 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Philobryidae (Family)

Bryophilopsis
 Bryophilopsis Dyar, 1920 accepted as Parabryophila Dyar, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Bryophilopsis Hampson, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nolidae (Family)

Bryophrya
     Bryophrya Kahl, 1931 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Bryophrya Wengel, 1953 · Chromista (Kingdom) > Ciliophora (Phylum) > Colpodea (Class) > Bryophryida (Order) > Bryophryidae (Family)

Bryophyllum
 Bryophyllum R.A. Salisbury, 1805 accepted as Kalanchoe Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)
     Bryophyllum Kahl, 1931 · Chromista (Kingdom) > Ciliophora (Phylum) > Litostomatea (Class) > Spathidiida (Order) > Spathidiidae (Family)
     Bryophyllum A. Vizzini, 2014 accepted as Sphagnurus S.A. Redhead & V. Hofstetter in Redhead, 2014 (junior homonym)· Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Hygrophoraceae (Family)

Bryopogon
 Bryopogon Th. Fries, 1860 accepted as Bryoria I.M. Brodo & D.L. Hawksworth, 1977 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)
 Bryopogon Link, 1833 accepted as Alectoria Acharius, 1810 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)

Bryoporus
     Bryoporus Kraatz, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Bryoporus Roger, 1856 accepted as Bryoporus Kraatz, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Bryopsis
     Bryopsis J.V.F. Lamouroux, 1809 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Bryopsidaceae (Family)
     Bryopsis Boursin, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Bryopsis C.F. Reiche, 1895 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Bryssus
 Bryssus Dejean, 1821 accepted as Strophosoma Billberg, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Bryssus Martens in Decken, 1869 accepted as Brissus Gray, 1825 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Brissidae (Family)

Bua
     Bua Wei & Nie, 1998 accepted as Bua Wei & Nie, 1998 (unreplaced junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)
     Bua Bolivar, 1918 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Bubalis
 Bubalis Lichtenstein, 1814 accepted as Bubalus Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Bubalis Goldfuss, 1820 accepted as Alcelaphus de Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Bubaloceras
     Bubaloceras Walsingham, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Cosmopterigidae (Family)
     Bubaloceras Matjašič, 1958 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Turbellaria (awaiting allocation) (Order) > Turbellaria (awaiting allocation) (Family)

Bubalus
 Bubalus Ogilby, 1837 accepted as Alcelaphus de Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
     Bubalus Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Bubalus Frisch, 1775 accepted as Bubalus Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Bubaris
 Bubaris Pascoe, 1882 accepted as Sosytelus Pascoe, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Bubaris Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Bubarida (Order) > Bubaridae (Family)

Bubas
     Bubas Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Bubas Mulsant, 1842 accepted as Bubas Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Bubo
 Bubo Rambur, 1842 accepted as Bubopsis McLachlan, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Ascalaphidae (Family)
     Bubo Duméril, 1805 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)
 Bubo Brisson, 1760 accepted as Bubo Duméril, 1805 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)

Bubotus
 Bubotus Rafinesque, 1815 accepted as Bubo Duméril, 1805 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)
 Bubotus Agassiz, 1846 accepted as Bubotus Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Bubulcus
     Bubulcus Bonaparte, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ardeiformes (Order) > Ardeidae (Family)
     Bubulcus Bonaparte, 1854 accepted as Bubulcus Bonaparte, 1855 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ardeiformes (Order) > Ardeidae (Family)
     Bubulcus Dlabola, 1961 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Bucardia
 Bucardia Rollier, 1911 † accepted as Bucardiomya Rollier, 1912 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Pholadomyidae (Family)
 Bucardia Schumacher, 1817 accepted as Glossus Poli, 1795 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Glossidae (Family)

Bucardium
 Bucardium Agassiz, 1846 accepted as Bucardium Agassiz, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Glossidae (Family)
     Bucardium Herrmannsen, 1846 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bucardium J.E. Gray, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Cardiidae (Family)

Buccinella
 Buccinella Perry, 1811 accepted as Turbinella Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turbinellidae (Family)
 Buccinella Thiele, 1912 accepted as Fusinella Thiele, 1917 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Buccinofusus
 Buccinofusus Conrad, 1868 † accepted as Conradconfusus Snyder, 2002 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Fasciolariidae (Family)
 Buccinofusus Conrad, 1866 accepted as Conradconfusus Snyder, 2002 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Fasciolariidae (Family)

Buccinopsis
 Buccinopsis Jeffreys, 1867 accepted as Liomesus Stimpson, 1865 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)
     Buccinopsis Conrad, 1857 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
     Buccinopsis Deshayes, 1865 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Buccinopsis Mayer, 1876 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bucco
     Bucco Brisson, 1760 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bucco Linnaeus, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Piciformes (Order) > Bucconidae (Family)
 Bucco Möhring, 1758 accepted as Bucco Möhring, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Bucco J.C. Wendland, 1805 accepted as Bucco J.C. Wendland, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Buccotrogon
     Buccotrogon Kreling, 1853 accepted as Buccotrogon Kreling, 1853 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Buccotrogon Reichenbach, 1854 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Bucculina
 Bucculina J. Lindley, 1837 accepted as Holothrix L.C. Richard ex J. Lindley, 1835 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Bucculina V.S. Maljavkina, 1949 † accepted as Bucculina V.S. Maljavkina, 1949 † (unreplaced junior homonym)· Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Bucephala
     Bucephala Baird, 1858 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)
     Bucephala Gray, 1840 accepted as Bucephala Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Bucephalinus
 Bucephalinus Koch, 1934 accepted as Carpelimus Leach in Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Bucephalinus Blackwelder, 1952 accepted as Carpelimus Leach in Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Bucephalon
 Bucephalon Linnaeus, 1753 accepted as Trophis P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Moraceae (Family)
     Bucephalon Lesson, 1836 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Bucephalopsis
 Bucephalopsis Nicoll, 1914 accepted as Bucephaloides Hopkins, 1954 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Strigeidida (Order) > Bucephalidae (Family)
 Bucephalopsis Diesing, 1855 accepted as Prosorhynchoides Dollfus, 1929 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Strigeidida (Order) > Bucephalidae (Family)

Bucephalus
     Bucephalus Dejean, 1821 accepted as Bucephalus Dejean, 1821 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Bucephalus von Baer, 1827 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Strigeidida (Order) > Bucephalidae (Family)
 Bucephalus Prjewalski in Rowley, 1878 accepted as Bucephala Baird, 1858 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)
     Bucephalus Smith, 1829 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Buceras
 Buceras Haller, 1768 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Buceras P. Browne, 1756 accepted as Bucida Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Combretaceae (Family)

Buchanania
 Buchanania J.E. Smith, 1806 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Buchanania K.P.J. Sprengel, 1802 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)
     Buchanania Lesson, 1831 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Fissurellidae (Family)

Bucheria
 Bucheria Dorf, 1933 † accepted as Rebuchia F.M. Hueber, 1970 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Zosterophyllopsida (Class) > Zosterophyllales (Order) > Zosterophyllales (awaiting allocation) (Family)
 Bucheria Heynhold, 1846 accepted as Thryptomene Endlicher, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Buchholzia
     Buchholzia Engler, 1886 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)
     Buchholzia Michaelsen, 1886 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Enchytraeidae (Family)
 Buchholzia Barnes & Benjamin, 1926 accepted as Benjaminiola Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Buchholzia Trouessart, 1916 accepted as Bonnetella Trouessart in Bonnet, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Avenzoariidae (Family)

Buchia
     Buchia Rouillier, 1845 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myalinida (Order) > Myalinidae (Family)
 Buchia Kunth in Humboldt, Bonpland & Kunth, 1817 accepted as Perama Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Buchingera
 Buchingera Boissier & Hohenacker in Boissier, 1849 accepted as Asperuginoides S. Rauschert, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Buchingera F. Schultz, 1847 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)

Buchnera
     Buchnera Munson, Baumann & Kinsey, 1991 · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Gammaproteobacteria (Class) > Enterobacterales (Order) > Erwiniaceae (Family)
     Buchnera Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Orobanchaceae (Family)

Buchneria
 Buchneria Erbaeva, 1988 † accepted as Ochotona Link, 1795 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Lagomorpha (Order) > Ochotonidae (Family)
     Buchneria Harmer, 1957 accepted as Bryobuchneria Martha, Vieira, Souto, Grischenko, Gordon & Ostrovsky, 2020 (junior homonym)· Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Bryocryptellidae (Family)
     Buchneria Börner, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
     Buchneria Verhoeff, 1941 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Julida (Order) > Julidae (Family)
 Buchneria Moncharmont Zei & Sgarerella, 1977 accepted as Sipholagena Moncharmont Zei & Sgarella, 1980 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Ellipsolagenidae (Family)

Bucholzia
 Bucholzia C.F.P. Martius, 1825 accepted as Alternanthera Forsskål, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
     Bucholzia Stadtmann ex Willemet, 1796 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Combretaceae (Family)

Buchozia
 Buchozia C.L. L'Héritier de Brutelle ex A.L. de Jussieu, 1806 accepted as Serissa Commerson ex A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Buchozia Bayan, 1873 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)

Bucinella
 Bucinella H. Wiehler, 1977 accepted as Columnea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Bucinella A. Fucini, 1936 † (uncertain)· Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)

Buckia
     Buckia Cobos, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
     Buckia D. Ríos Poveda, M.T. Gallego & J. Guerra in Câmara et al., 2018 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnales (Order) > Pylaisiaceae (Family)

Buckiella
     Buckiella Cobos, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
     Buckiella R.R. Ireland, 2001 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Hypnaceae (Family)

Bucklandia
 Bucklandia H. Roivainen, 1955 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Grimmiales (Order) > Grimmiaceae (Family)
 Bucklandia R. Brown ex W. Griffith, 1836 accepted as Exbucklandia R.W. Brown, 1946 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Hamamelidaceae (Family)
     Bucklandia Sternberg, 1825 † accepted as Conites Sternberg, 1823 † (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadeoideales (Order) > Cycadeoideaceae (Family)
     Bucklandia A.T. Brongniart, 1828 † accepted as Conites Sternberg, 1823 † (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadeoideales (Order) > Cycadeoideaceae (Family)

Buckleya
     Buckleya J. Torrey, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Santalaceae (Family)
 Buckleya Sarwar, 1956 accepted as Trichostrongylus Looss, 1905 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Trichostrongylidae (Family)
 Buckleya Mousson, 1873 accepted as Buckleyia Higgins, 1872 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Neocyclotidae (Family)

Bucobia
 Bucobia Heynemann, 1906 accepted as Bukobia Simroth, 1896 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Urocyclidae (Family)
     Bucobia Poppius, 1914 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Bucolus
     Bucolus Reichenbach, 1850 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Bucolus Mulsant, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)

Budaia
 Budaia Mehes, 1941 † accepted as Mehesella Reyment, 1960 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Budaia Wells, 1933 † · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Amphiastraeidae (Family)

Budvicia
     Budvicia Bouvet et al., 1985 · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Gammaproteobacteria (Class) > Enterobacterales (Order) > Budviciaceae (Family)
 Budvicia Aldová et al., 1985 accepted as Budvicia Bouvet et al., 1985 · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Gammaproteobacteria (Class) > Enterobacterales (Order) > Budviciaceae (Family)

Buekia
 Buekia C.G.D. Nees, 1834 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Buekia Giseke, 1792 accepted as Alpinia Roxburgh, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)

Buena
 Buena Pohl, 1826 accepted as Cosmibuena Ruiz & Pavón, 1802 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Buena Cavanilles, 1800 accepted as Gonzalagunia Ruiz & Pavon, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Buergeria
     Buergeria Tschudi, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Rhacophoridae (Family)
 Buergeria Siebold & Zuccarini, 1845 accepted as Magnolia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Magnoliaceae (Family)
 Buergeria Miquel, 1867 accepted as Maackia Ruprecht, 1856 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Buetschliella
     Buetschliella Awerinzew, 1908 accepted as Buetschliella Awerinzew, 1908 (nomen nudum)· Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)
     Buetschliella Jirovec, 1933 accepted as Pseudobuetschlia Jirovec, 1933 (junior homonym)· Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)

Buettneria
     Buettneria Case, 1922 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Temnospondyli (Order) > Metoposauridae (Family)
     Buettneria Simroth, 1888 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Buettneria Karsch, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Buettneria Murray, 1784 accepted as Byttneria Loefling, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Buffo
 Buffo de Lacepède, 1788 accepted as Bufo Laurenti, 1768 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Bufonidae (Family)
 Buffo de Montfort, 1810 accepted as Marsupina Dall, 1904 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bursidae (Family)

Buffonella
 Buffonella Keferstein, 1868 accepted as Pseudophryne Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Myobatrachidae (Family)
 Buffonella Jullien, 1888 † accepted as Buffonellodes Strand, 1928 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Schizoporellidae (Family)

Buffonellaria
     Buffonellaria Canu & Bassler, 1927 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Celleporidae (Family)
     Buffonellaria Canu & Lecointre, 1925 † accepted as Buffonellaria Canu & Bassler, 1927 (nomen nudum)· Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Schizoporellidae (Family)

Bufo
 Bufo Agassiz, 1846 accepted as Bufo Agassiz, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bursidae (Family)
     Bufo Rösel von Rosenhof, 1758 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Bufo Laurenti, 1768 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Bufonidae (Family)

Bufonaria
     Bufonaria Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bursidae (Family)
     Bufonaria Emel'yanov, 1963 accepted as Neobufonaria Koçak, 1981 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Bufotettix
     Bufotettix Caudell, 1918 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Bufotettix Uvarov, 1929 accepted as Batrachidacris Uvarov, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Lathiceridae (Family)

Buglossites
 Buglossites Bubani, 1897 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
     Buglossites Moris, 1845 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Buglossus
 Buglossus Günther, 1862 accepted as Microchirus Bonaparte, 1833 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Soleidae (Family)
 Buglossus Wahlenberg ex Wahlenberg, 1826 accepted as Fistulina Bulliard, 1791 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Fistulinaceae (Family)

Bugula
     Bugula Oken, 1815 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Bugulidae (Family)
     Bugula P. Miller, 1754 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Bulbamphiascus
     Bulbamphiascus Lang, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)
 Bulbamphiascus Lang, 1948 accepted as Bulbamphiascus Lang, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)

Bulbaspis
     Bulbaspis Chugaeva, 1958 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Raphiophoridae (Family)
     Bulbaspis Chugaeva, 1956 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Bulbella
     Bulbella Braem, 1951 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Victorellidae (Family)
     Bulbella V.S. Maljavkina, 1949 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Bulbine
 Bulbine J. Gaertner, 1788 accepted as Crinum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
     Bulbine N.M. Wolf, 1776 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asphodelaceae (Family)

Bulbocephalus
     Bulbocephalus Watson, 1917 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Stylocephalidae (Family)
     Bulbocephalus Rasheed, 1966 accepted as Rasheedia Moravec & Justine, 2018 (junior homonym)· Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Physalopteridae (Family)

Bulbocodium
 Bulbocodium Gronovius, 1755 accepted as Romulea Maratti, 1772 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Bulbocodium Linnaeus, 1753 accepted as Colchicum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Colchicaceae (Family)

Bulbodacnitis
     Bulbodacnitis Lane, 1916 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Cucullanidae (Family)
 Bulbodacnitis Maggenti, 1971 accepted as Cucullanus Müller, 1777 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Cucullanidae (Family)

Bulbospermum
     Bulbospermum C.L. Blume, 1827 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Bulbospermum D.D. Pant, D.D. Nautiyal & S.P. Tiwari, 1985 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cordaitales (Order) > Cordaitales (awaiting allocation) (Family)

Bulbostylis
     Bulbostylis Kunth, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Bulbostylis C. Steven, 1817 accepted as Bulbostylis C. Steven, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Bulbostylis A.P. de Candolle, 1836 accepted as Coleostephus Cassini in F. Cuvier, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Bulbulus
     Bulbulus Lesne, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Bulbulus J.R. Swallen, 1964 accepted as Rehia F. Fijten, 1975 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Bulbus
     Bulbus T. Brown, 1839 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Naticidae (Family)
     Bulbus Smith, 1839 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bulga
     Bulga Gistl, 1868 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Bulga O. Kuntze, 1891 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Bulgariella
     Bulgariella P.A. Karsten, 1885 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiaceae (Family)
     Bulgariella Karaman, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Bulimella
     Bulimella Hall, 1858 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bulimella Pfeiffer, 1854 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bulimina
     Bulimina d'Orbigny, 1826 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Buliminidae (Family)
 Bulimina Ehrenberg, 1831 accepted as Ena Turton, 1831 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Enidae (Family)

Buliminopsis
     Buliminopsis Rzehak, 1895 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Buliminopsis Heude, 1890 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)

Bulimulus
     Bulimulus Risso, 1826 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bulimulus Leach, 1814 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Bulimulidae (Family)

Bulimus
 Bulimus Pallary, 1901 † accepted as Bulinus O. F. Müller, 1781 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)
 Bulimus Scopoli, 1777 accepted as Bithynia Leach in Abel, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bithyniidae (Family)
 Bulimus Bruguière, 1789 accepted as Bithynia Leach in Abel, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bithyniidae (Family)

Bulina
     Bulina Lesson, 1833 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Bulina Walker, 1866 accepted as Libuna Moore, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Bulinella
     Bulinella Penard, 1907 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Bulinella Fischer, 1898 accepted as Bulinella Fischer, 1898 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Scaphandridae (Family)

Bulinus
 Bulinus Broderip, 1828 accepted as Bithynia Leach in Abel, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bithyniidae (Family)
     Bulinus O. F. Müller, 1781 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)
     Bulinus Studer, 1820 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bulinus Férussac, 1822 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bulis
 Bulis Gistl, 1848 accepted as Triton Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cirripedia (awaiting allocation) (Order) > Cirripedia (awaiting allocation) (Family)
     Bulis Laporte & Gory, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Bulla
     Bulla Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Bullidae (Family)
 Bulla Battarra ex Earle, 1909 accepted as Agrocybe Fayod, 1889 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Strophariaceae (Family)
 Bulla Linnaeus, 1758 [2] accepted as Bullacris Roberts, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pneumoridae (Family)
     Bulla Müller, 1776 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bulla Bruguière, 1789 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bullaea
     Bullaea Brown, 1827 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Bullaea Lamarck, 1801 accepted as Philine Ascanius, 1772 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Philinidae (Family)

Bullaria
 Bullaria A.P. de Candolle in Lamarck & A.P. de Candolle, 1805 accepted as Puccinia Persoon, 1794 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Bullaria Rafinesque, 1815 accepted as Bulla Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Bullidae (Family)

Bullata
     Bullata Frierson, 1927 accepted as Pustulosa Frierson, 1927 (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
     Bullata Jousseaume, 1875 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Marginellidae (Family)

Bullatella
     Bullatella Swain & Cornell, 1961 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Palaeocopida (awaiting allocation) (Family)
     Bullatella Bogoyavlenskaya, 1977 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Hydrozoa (awaiting allocation) (Order) > Hydrozoa (awaiting allocation) (Family)

Bullea
     Bullea de Blainville, 1825 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Bullea Rafinesque, 1815 accepted as Bullaea Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Philinidae (Family)

Bullia
     Bullia Griffith, 1834 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)
     Bullia Gray, 1833 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)

Bullina
     Bullina Férussac, 1822 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Bullinidae (Family)
     Bullina Risso, 1826 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Scaphandridae (Family)

Bullinula
 Bullinula G. B. Sowerby II, 1839 accepted as Bullina Férussac, 1822 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Bullinidae (Family)
 Bullinula Penard, 1911 accepted as Bullinularia Deflandre in Grassé, 1953 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Tubulinea (Class) > Arcellinida (Order) > Plagiopyxidae (Family)

Bullinus
 Bullinus Oken, 1815 accepted as Bulinus O. F. Müller, 1781 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)
     Bullinus Fabricius, 1823 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bullites
     Bullites Schlotheim, 1813 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Bullites Schläpfer, 1821 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Bullockia
     Bullockia (Bridson) S.G. Razafimandimbison, H. Lantz & B. Bremer, 2009 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Bullockia Arratia, Chang, Menu-Marque & Rojas, 1978 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Trichomycteridae (Family)

Bullulina
     Bullulina V.S. Maljavkina, 1949 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Bullulina Hammerschmidt, 1838 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Buloloa
     Buloloa Boucek, 1988 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Buloloa Hardy, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Bulweria
 Bulweria F. von Mueller, 1864 accepted as Deplanchea Vieillard, 1862 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Bignoniaceae (Family)
     Bulweria Bonaparte, 1843 (1842) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Procellariiformes (Order) > Procellariidae (Family)

Bumbanomys
     Bumbanomys Shevyreva, 1989 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Chapattimyidae (Family)
 Bumbanomys Shevyreva, 1983 † accepted as Bumbanomys Shevyreva, 1989 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Chapattimyidae (Family)
 Bumbanomys Shevyreva in Badamgarav & Reshetov, 1985 † accepted as Bumbanomys Shevyreva, 1989 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Chapattimyidae (Family)

Bunburia
     Bunburia Jóźwiak & Jakiel, 2012 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Agathotanaidae (Family)
     Bunburia W.H. Harvey, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Bundleia
     Bundleia Strelkow, 1939 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Bundleia Cunha & Muniz, 1928 · Chromista (Kingdom) > Ciliophora (Phylum) > Prostomatea (Class) > Prostomatida (Order) > Buetschliidae (Family)

Bungarus
     Bungarus Oppel, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)
     Bungarus Daudin, 1803 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Bunnya
     Bunnya F. von Mueller, 1865 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
     Bunnya Baker, 1942 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helminthoglyptidae (Family)

Bunocephalichthys
     Bunocephalichthys Bleeker, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Aspredinidae (Family)
     Bunocephalichthys Bleeker, 1858 accepted as Bunocephalus Kner, 1855 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Aspredinidae (Family)

Bunodella
     Bunodella Matthew, 1888 † · Animalia (Kingdom) > Arthropoda (Phylum) > Xiphosura (Class) > (Order) > Xiphosura (awaiting allocation) (Family)
 Bunodella Pfeffer, 1889 accepted as Parantheopsis McMurrich, 1904 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniidae (Family)
 Bunodella Verrill, 1899 accepted as Isoaulactinia Belém, Herrera & Schlenz, 1996 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniidae (Family)

Bunodes
     Bunodes Gosse, 1855 accepted as Urticina Ehrenberg, 1834 (junior homonym)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Tealidae (Family)
     Bunodes Eichwald, 1854 † · Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > (Order) > Bunodidae (Family)

Bunodus
     Bunodus Guettard, 1770 accepted as Bunodus Guettard, 1770 (nomen dubium)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Serpulidae (Family)
 Bunodus de Blainville, 1817 accepted as Bunodus Guettard, 1770 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Serpulidae (Family)

Bunofagea
     Bunofagea Staręga, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Zalmoxidae (Family)
     Bunofagea Lawrence, 1959 accepted as Bunofagea Staręga, 1992 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Zalmoxidae (Family)

Bunomys
     Bunomys Thomas, 1910 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)
 Bunomys Grandidier, 1905 accepted as Bunomys Thomas, 1910 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)

Bunostomum
 Bunostomum Roewer, 1911 accepted as Bunochelis Roewer, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Phalangiidae (Family)
     Bunostomum Railliet, 1902 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Ancylostomatidae (Family)

Bupala
     Bupala Pascoe, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Zopheridae (Family)
 Bupala Snellen, 1867 accepted as Bupalus Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Buphagus
 Buphagus Möhring, 1758 accepted as Buphagus Möhring, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Stercorariidae (Family)
     Buphagus Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sturnidae (Family)

Buphthalmum
     Buphthalmum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Buphthalmum P. Miller, 1754 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Buprestis
 Buprestis K.P.J. Sprengel, 1813 accepted as Bupleurum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Buprestis Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Buprestis Geoffroy, 1762 accepted as Carabus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Buprestis Müller, 1764 accepted as Carabus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Buprestris
 Buprestris Gebler in Ledebour, 1830 accepted as Buprestis Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Buprestris Trost, 1801 accepted as Buprestis Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Burara
     Burara Swinhoe, 1893 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Burara Dworakowska, 1980 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Burcardia
 Burcardia Necker ex Rafinesque, 1838 accepted as Campomanesia Ruiz & Pavón, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Burcardia Schmidel, 1797 accepted as Sarcosoma Caspary in Rabenhorst, 1891 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Sarcosomataceae (Family)
 Burcardia Heister ex Duhamel du Monceau, 1755 accepted as Burcardia Heister ex Duhamel du Monceau, 1755 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)

Burchellia
     Burchellia Rehn, 1933 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Ectobiidae (Family)
     Burchellia R. Brown, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Burckhardtia
     Burckhardtia Frech, 1907 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pterioida (awaiting allocation) (Family)
     Burckhardtia Brown & Hodkinson, 1988 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Burckhardtia Straube & Miretzki, 1999 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Psyllidae (Family)

Bureiomya
     Bureiomya Voronetz, 1938 † accepted as Bucardiomya Rollier, 1912 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Pholadomyidae (Family)
     Bureiomya Nevesskaja in Nevesskaja et al., 2013 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Pholadomyidae (Family)

Burenia
 Burenia Reddy & Kramer, 1975 accepted as Buerenia M.S. Reddy & C.L. Kramer, 1975 · Fungi (Kingdom) > Ascomycota (Phylum) > Taphrinomycetes (Class) > Taphrinales (Order) > Protomycetaceae (Family)
     Burenia Attems, 1928 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polyzoniida (Order) > Siphonotidae (Family)

Bureschiella
     Bureschiella Popov, 1974 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)
     Bureschiella Jacentkovský, 1940 accepted as Pollenia Robineau-Desvoidy, 1830 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Polleniidae (Family)

Burgeonia
     Burgeonia Medvedev, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Burgeonia Schouteden, 1919 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Burgersia
     Burgersia J.M. Anderson & H.M. Anderson, 1985 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridophyta/Pteridospermophyta (unclassified foliage) (Class) > Pteridophyta/Pteridospermophyta (awaiting allocation) (Order) > Pteridophytes/Pteridosperms (awaiting allocation) (Family)
 Burgersia Werner, 1928 accepted as Calofulcinia Giglio-Tos, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Nanomantidae (Family)

Burgundia
     Burgundia Dehorne, 1916 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > (Order) > Burgundiidae (Family)
     Burgundia Törnquist, 1901 † accepted as Burgundia Dehorne, 1916 † (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > (Order) > Burgundiidae (Family)

Burhinacarus
     Burhinacarus Dubinin, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Freyanidae (Family)
     Burhinacarus Dubinin, 1953 accepted as Burhinacarus Dubinin, 1955 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Freyanidae (Family)

Buria
     Buria Morozova & Zharnikova, 1984 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Cyclostomatida (awaiting allocation) (Family)
     Buria Giebel, 1857 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Buritia
     Buritia Young, 1952 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Buritia Brant, 1974 accepted as Orthospinus Reis, 1989 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)

Burkea
     Burkea Sprague, 1977 · Fungi (Kingdom) > Rozellomycota (Phylum) > (Class) > (Order) > Burkeidae (Family)
     Burkea W.J. Hooker, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Burkillia
 Burkillia H.N. Ridley, 1925 accepted as Burkilliodendron A.R.K. Sastry, 1969 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Burkillia W. West & G.S. West, 1908 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Volvocales (Order) > Chlorochytriaceae (Family)
 Burkillia Iredale, 1915 accepted as Tragula Monterosato, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)

Burmannia
     Burmannia Bleszynski in Amsel, Gregor & Reisser, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
     Burmannia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dioscoreales (Order) > Burmanniaceae (Family)

Burmeisteria
     Burmeisteria Schickendantz, 1868 accepted as Burmeisteriellus Berg, 1898 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Burmeisteria Gray, 1865 accepted as Calyptophractus Fitzinger, 1871 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cingulata (Order) > Dasypodidae (Family)
     Burmeisteria Salter, 1865 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Homalonotidae (Family)
     Burmeisteria Weyenbergh, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)

Burmesia
     Burmesia Healey, 1908 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Burmesiidae (Family)
 Burmesia Wunderlich in Wunderlich & Müller, 2020 † accepted as Burmesiana Wunderlich in Wunderlich & Müller, 2021 † · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Nemesiidae (Family)

Burmirhynchia
     Burmirhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)
     Burmirhynchia Buckman, 1915 † accepted as Burmirhynchia Buckman, 1917 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)

Burnetia
     Burnetia Broom, 1923 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Theriodontia (Order) > Burnetiidae (Family)
 Burnetia Walcott, 1924 † accepted as Burnetiella Lochman, 1958 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)
 Burnetia Macchiavello, 1947 accepted as Coxiella (Philip, 1943) Philip, 1948 (Approved Lists, 1980) · Bacteria (Kingdom) > Pseudomonadota (Phylum) > Gammaproteobacteria (Class) > Legionellales (Order) > Coxiellaceae (Family)

Burnettia
     Burnettia J. Lindley, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Burnettia Stanisic in Stanisic, Shea, Potter & Griffiths, 2010 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicarionidae (Family)
 Burnettia Grout, 1903 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Brachytheciaceae (Family)

Burrowsia
     Burrowsia Tutt, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Burrowsia Fryday & I. Medeiros, 2020 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Caliciales (Order) > Caliciaceae (Family)

Bursa
 Bursa Boehmer in C.G. Ludwig, 1760 accepted as Capsella Medikus, 1792 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Bursa Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bursidae (Family)
     Bursa [misspelling] † accepted as Bursata Rhoads, 1962 † (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Septemchitonida (Order) > Septemchitonidae (Family)

Bursaphelenchus
     Bursaphelenchus Fuchs, 1937 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Aphelenchoididae (Family)
     Bursaphelenchus Rühm, 1956 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)

Bursaria
     Bursaria Cavanilles, 1797 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Pittosporaceae (Family)
     Bursaria Müller, 1773 · Chromista (Kingdom) > Ciliophora (Phylum) > Heterotrichea (Class) > Heterotrichida (Order) > Bursariidae (Family)

Bursatella
     Bursatella Blainville, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Anaspidea (Order) > Aplysiidae (Family)
 Bursatella Agassiz, 1843 accepted as Bursatella Agassiz, 1843 · Animalia (Kingdom) > Rotifera (Phylum) > Rotifera (awaiting allocation) (Class) > Rotifera (awaiting allocation) (Order) > Rotifera (awaiting allocation) (Family)

Bursella
     Bursella Schmidt, 1921 · Chromista (Kingdom) > Ciliophora (Phylum) > Prostomatea (Class) > Prostomatida (Order) > Holophryidae (Family)
     Bursella Turpin, 1828 (uncertain)· Animalia (Kingdom) > Rotifera (Phylum) > Rotifera (awaiting allocation) (Class) > Rotifera (awaiting allocation) (Order) > Rotifera (awaiting allocation) (Family)

Burtinia
     Burtinia Endlicher, 1837 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
     Burtinia van Beneden, 1873 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Perciformes (awaiting allocation) (Family)

Burtonella
     Burtonella M.E.J. Chandler, 1962 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)
 Burtonella de Laubenfels, 1928 accepted as Iophon Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Acarnidae (Family)

Burtonia
 Burtonia R.A. Salisbury, 1807 accepted as Burtonia R.A. Salisbury, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dilleniales (Order) > Dilleniaceae (Family)
 Burtonia R. Brown ex W.T. Aiton, 1811 accepted as Gompholobium J.E. Smith, 1798 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Burtonia Bonaparte, 1850 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Burtonia D. Beju, 1983 † accepted as Atopodinium W.S. Drugg, 1978 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > (Family)
 Burtonia Buckman, 1910 † accepted as Bredyia Buckman, 1910 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
 Burtonia Bourguignat, 1883 accepted as Pseudospatha Simpson, 1900 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Mutelidae (Family)

Burttia
     Burttia Dirsh, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Burttia E.G. Baker & Exell, 1931 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Connaraceae (Family)

Busbeckea
 Busbeckea Endlicher, 1833 accepted as Capparis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)
 Busbeckea C.F.P. von Martius, 1829 accepted as Salpichroa Miers, 1845 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Busbeckia
 Busbeckia G.A.J. Hécart, 1808 accepted as Syringa Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Oleaceae (Family)
 Busbeckia H.G.L. Reichenbach, 1841 accepted as Capparis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)

Buscarla
     Buscarla Gray, 1855 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Buscarla Bonaparte, 1857 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Busckia
     Busckia Dyar, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Busckia Champion, 1909 accepted as Busckiella Champion, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Bushia
     Bushia Dall, 1886 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Thraciidae (Family)
     Bushia Nieuwland accepted as Bushiola Nieuwland, 1915 (misspelling - incorrect subsequent spelling)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Buskia
     Buskia Tenison-Woods, 1877 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Cheilostomatida (awaiting allocation) (Family)
     Buskia Reuss, 1865 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Cyclostomatida (awaiting allocation) (Family)
     Buskia Alder, 1857 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Buskiidae (Family)
 Buskia Hustache, 1938 accepted as Busckiella Champion, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Buskiella
 Buskiella Hustache, 1938 accepted as Busckiella Champion, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Buskiella McIntosh, 1885 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Flabelligerida (Order) > Flabelligeridae (Family)

Bussa
     Bussa Ragonot, 1888 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Bussa Johnson, Kruse & Kroenlein, 1997 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)

Bustia
 Bustia Adanson, 1763 accepted as Buphthalmum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Bustia L. Grauvogel-Stamm, 1991 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lycopodiopsida (awaiting allocation) (Order) > Lycopodiopsida (awaiting allocation) (Family)

Bustilloxia
     Bustilloxia Exposito Hermosa, 1978 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Bustilloxia Exposito Hermosa, 1979 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Busuanga
     Busuanga Yeh, 1990 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Nassellaria (awaiting allocation) (Family)
 Busuanga Herre, 1930 accepted as Tylosurus Cocco, 1833 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Beloniformes (Order) > Belonidae (Family)

Butaetes
 Butaetes Heuglin, 1862 accepted as Butaetes Heuglin, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Butaetes Lesson, 1830 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Butaetus
     Butaetus Blyth, 1845 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Butaetus Bonaparte, 1855 accepted as Butaetus Bonaparte, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Butalis
     Butalis Treitschke, 1833 accepted as Scythris Hübner, 1825 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Scythrididae (Family)
 Butalis Boie, 1826 accepted as Muscicapa Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)

Butania
     Butania Bolivar, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Chorotypidae (Family)
 Butania P.C. Keng, 1982 accepted as Yushania P.C. Keng, 1957 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Butaquila
     Butaquila Hodgson, 1844 accepted as Butaquila Hodgson, 1844 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Butaquila Gray in J.L.G. Gray, 1846 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Butaurus
     Butaurus Lesson, 1831 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Butaurus Smith, 1838 accepted as Botaurus Stephens in Shaw, 1819 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ardeiformes (Order) > Ardeidae (Family)

Buteaetos
     Buteaetos Naumann, 1853 accepted as Buteaetos Naumann, 1853 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Buteaetos Möschler, 1853 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Buteaëtos
     Buteaëtos Naumann, 1853 accepted as Buteaetos Naumann, 1853 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Buteaëtos Möschler, 1853 accepted as Buteaetos Möschler, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Buteo
 Buteo Möhring, 1758 accepted as Buteo Möhring, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Buteo Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)

Buthotrephis
     Buthotrephis J. Hall, 1847 † (uncertain)· Plantae (Kingdom) > Algae incertae sedis (Phylum) > (Class) > (Order) > (Family)
 Buthotrephis Fenton, 1928 † accepted as Buthotrephis J. Hall, 1847 † · Plantae (Kingdom) > Algae incertae sedis (Phylum) > (Class) > (Order) > (Family)

Buthotrepis
 Buthotrepis Hall, 1847 † accepted as Buthotrephis J. Hall, 1847 † · Plantae (Kingdom) > Algae incertae sedis (Phylum) > (Class) > (Order) > (Family)
     Buthotrepis Fitch, 1849 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Butis
     Butis Bleeker, 1856 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gobiiformes (Order) > Eleotridae (Family)
 Butis Bleeker, 1874 accepted as Butis Bleeker, 1856 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gobiiformes (Order) > Eleotridae (Family)

Butleria
     Butleria P.A. Saccardo, 1914 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Myriangiales (Order) > Myriangiaceae (Family)
     Butleria Kirby, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
     Butleria de Bonis, Bouvrain, Koufos & Tassy, 1995 † accepted as Winamia Pickford, 2020 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Chalicotheriidae (Family)
 Butleria Brunner, 1888 accepted as Spizaphilus Kirby, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Anostostomatidae (Family)

Butleriella
 Butleriella Bolivar, 1906 accepted as Spizaphilus Kirby, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Anostostomatidae (Family)
     Butleriella Poduschka & Poduschka, 1985 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Afrosoricida (Order) > Tenrecidae (Family)

Butlerius
     Butlerius Cerda, 2020 accepted as Brutelius Cerda, 2024 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Butlerius Goodey, 1929 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Diplogasterida (Order) > Diplogasteridae (Family)

Butor
 Butor Gistel, 1848 † accepted as Laternula Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Laternulidae (Family)
     Butor Swainson in Murray, 1834 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Butor Forster, 1827 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Butschliella
     Butschliella Skvortzov, 1968 · Chromista (Kingdom) > Cryptista (Phylum) > Cryptophyceae (Class) > Cryptomonadales (Order) > Butschliellaceae (Family)
 Butschliella Awerinzew, 1908 accepted as Buetschliella Awerinzew, 1908 · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)

Buttneria
 Buttneria Karsch, 1888 accepted as Buettneria Karsch, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Buttneria Duhamel du Monceau, 1755 accepted as Calycanthus Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Calycanthaceae (Family)
 Buttneria P. Browne, 1756 accepted as Casasia A. Richard in Sagra, 1850 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Buxella
     Buxella J.K. Small, 1933 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
     Buxella Godinot, 1988 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Notharctidae (Family)
     Buxella Van Tieghem, 1897 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Buxales (Order) > Buxaceae (Family)

Buxifrons
     Buxifrons Fukui, 1929 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Buxifrons Näsmark, 1937 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Buxtonia
     Buxtonia Esben-Petersen, 1928 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Hemerobiidae (Family)
     Buxtonia Thomas, 1914 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productidae (Family)

Buxtoniella
     Buxtoniella Abramov & Grigoreva, 1986 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Echinoconchidae (Family)
     Buxtoniella Muir, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lophopidae (Family)

Byas
     Byas Dalman in Billberg, 1820 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Byas Morris in Wood, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Byas Rambur, 1842 accepted as Ascalobyas Penny, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Ascalaphidae (Family)
 Byas Verreaux, 1855 accepted as Bias Lesson, 1830-31 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)

Byblis
     Byblis R.A. Salisbury, 1808 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Byblidaceae (Family)
     Byblis Boeck, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ampeliscidae (Family)

Bycanistes
     Bycanistes Cabanis & Heine, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Bucerotidae (Family)
     Bycanistes Stål, 1872 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Bychowskicotyle
     Bychowskicotyle Lebedev, 1969 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Mazocraeidea (Order) > Bychowskicotylidae (Family)
     Bychowskicotyle Unnithan, 1971 accepted as Bychowskicotyla Unnithan, 1971 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Mazocraeidea (Order) > Microcotylidae (Family)

Bylgia
     Bylgia Münster, 1839 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Penaeidae (Family)
 Bylgia Théel, 1879 accepted as Bylgides Chamberlin, 1919 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Polynoidae (Family)

Byomyia
     Byomyia Agassiz, 1846 accepted as Byomya Robineau-Desvoidy, 1830 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Byomyia Schiner, 1861 accepted as Biomya Rondani, 1856 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Byraxis
 Byraxis Reitter, 1880 accepted as Eupines King, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Byraxis Raffray, 1890 accepted as Achilia Reitter, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Byronia
     Byronia Matthew, 1899 † · Animalia (Kingdom) > Cnidaria (Phylum) > Scyphozoa (Class) > Byroniida (Order) > Byroniidae (Family)
     Byronia Endlicher, 1840 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastrales (awaiting allocation) (Family)

Byrospages
     Byrospages Dejean, 1835 accepted as Byrsopages Dejean, 1835 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Byrospages Schönherr, 1842 accepted as Byrsopages Schoenherr, 1842 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Byrrhidium
     Byrrhidium Heer, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Byrrhidium Harold, 1869 accepted as Elassocanthon Kolbe, 1908 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Byrrhodes
     Byrrhodes Leconte, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Byrrhodes Sharp, 1878 accepted as Byrrhopsis Champion, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scirtidae (Family)

Byrrhus
 Byrrhus Müller, 1776 accepted as Anobium Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Byrrhus Sulzer, 1776 accepted as Anthrenus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Byrrhus Geoffroy, 1762 accepted as Byrrhus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
     Byrrhus Linnaeus, 1767 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Byrrhidae (Family)

Byrsia
 Byrsia Pascoe, 1883 accepted as Byrsodes Marshall, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Byrsia Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Byrsopages
     Byrsopages Schoenherr, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Byrsopages Dejean, 1835 accepted as Byrsopages Schoenherr, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Byrsops
     Byrsops Germar, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Byrsops Schönherr, 1833 accepted as Byrsops Germar, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Byrsoptera
     Byrsoptera Lower, 1901 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Byrsoptera Spinola, 1837 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Byssomia
     Byssomia Fleming, 1822 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Byssomia Say, 1818 accepted as Hiatella Bosc, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Hiatellidae (Family)

Byssomya
 Byssomya Oken, 1817 accepted as Hiatella Bosc, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Hiatellidae (Family)
     Byssomya Schinz in Cuvier, 1822 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Hiatellidae (Family)
     Byssomya Goldfuss, 1820 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Bystra
     Bystra Cameron, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Bystra Hay, 1916 † accepted as Floridemys Williams, 1950 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Bythonesiotes
     Bythonesiotes Jeannel, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Bythonesiotes Jeannel, 1958 accepted as Takaorites Jeannel, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
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