• Anatrichosoma buccalis Pence & Little, 1972
• Anatrichosoma cutaneum Swift, Boots & Miles, 1922
• Anatrichosoma cynomolgi Smith & Chitwood, 1954
• Anatrichosoma gerbillis (Bernard, 1969)
• Anatrichosoma haycocki Spratt, 1982
• Buckleyuris buckleyi Tardos, 1964 accepted as Trichuris buckleyi (Tardos, 1964)
• Capilaria echenei
• Capilaria salvelina
• Capillaria acerinae Thieme, 1961 accepted as Hepatospina acerinae (Thieme, 1961)
• Capillaria adriatica Nikolaeva & Naidenova, 1964 accepted as Ichthyocapillaria adriatica (Nikolaeva & Naidenova, 1964)
• Capillaria aerophila (Creplin, 1839)
• Capillaria africana (Khalil, 1977)
• Capillaria alaudae Rudolphi, 1819
• Capillaria alphia Boch & Forstner, 1959
• Capillaria amarali Freitas & Lent, 1934 accepted as Ophidiocapillaria cesarpintoi (Freitas & Lent, 1934)
• Capillaria americana Read, 1949 accepted as Pseudocapillaria americana (Read, 1949)
• Capillaria anatis (Schrank, 1790)
• Capillaria angusta Dujardin, 1845
• Capillaria annulata (Molin, 1858)
• Capillaria annulosa Dujardin, 1845
• Capillaria anseris Madsen, 1945 accepted as Pelecitus podicipitis Yamaguti, 1935
• Capillaria ariusi (Parukhin, 1989)
• Capillaria armeniaca Kirschenblatt, 1939
• Capillaria avellari
• Capillaria baicalensis Ryzhikov & Sudarikov, 1953 accepted as Ichthyocapillaria salvelini (Polyanskii, 1952)
• Capillaria bainae Justine & Radujkovic, 1988 accepted as Pseudocapillaria bainae (Justine & Radujkovic, 1988)
• Capillaria baylisi Quentin, 1966 accepted as Aonchotheca baylisi (Quentin, 1966)
• Capillaria bilobata Bhalerao, 1933 accepted as Aonchotheca bilobata (Bhalerao, 1933)
• Capillaria bombinatoris (Linstow, 1892)
• Capillaria bovis (Schnyder, 1906)
• Capillaria brachyauchenia Walton, 1935 accepted as Capillaria tritonispunctati Diesing, 1851
• Capillaria brasiliana Freitas, 1933
• Capillaria brevicollis Walton, 1935 accepted as Capillaria tritonispunctati Diesing, 1851
• Capillaria brevipes Ransom, 1911 accepted as Aonchotheca brevipes (Ransom, 1911)
• Capillaria brevispicula Linstow, 1873 accepted as Pseudocapillaria brevispicula (Linstow, 1873)
• Capillaria brochieri Justine, 1988 accepted as Armocapillaria brochieri (Justine, 1988)
• Capillaria brosseti Justine, 1989 accepted as Aonchotheca brosseti (Justine, 1989)
• Capillaria bufonis Morishita, 1926
• Capillaria bursata Freitas & Almeida, 1934 accepted as Avesaonchotheca bursata (Freitas & Almeida, 1934)
• Capillaria caballeroi (Khalil, 1977)
• Capillaria cadovulvata Madsen, 1945
• Capillaria calliopis Yamaguti, 1941
• Capillaria carbonis Dubinin & Dubinina, 1940 accepted as Baruscapillaria carbonis (Dubinin & Dubinina, 1940)
• Capillaria carcharhini MacCallum, 1925 accepted as Huffmanela carcharhini (MacCallum, 1925)
• Capillaria carioca Freitas & Lent, 1935 accepted as Neocapillaria carioca (Freitas & Lent, 1935)
• Capillaria catastomi Pearse, 1924
• Capillaria catenata van Cleave & Mueller, 1932 accepted as Capillaroides catenata (van Cleave & Mueller, 1932)
• Capillaria catostomi Pearse, 1924 accepted as Pseudocapillaria tomentosa (Dujardin, 1843)
• Capillaria caudinflata (Molin, 1858)
• Capillaria cecumitis (Ching, 1990)
• Capillaria cesarpintoi Freitas & Lent, 1934 accepted as Ophidiocapillaria cesarpintoi (Freitas & Lent, 1934)
• Capillaria chabaudi Justine, 1989 accepted as Aonchotheca chabaudi (Justine, 1989)
• Capillaria chandigarhensis (Kalia & Gupta, 1985)
• Capillaria chauhani Gupta & Kumar, 1975
• Capillaria cholidicola Soltys, 1952
• Capillaria cichlasomae Moravec, Scholz & Mendoza-Franco, 1995 accepted as Hepatocapillaria cichlasomae (Moravec, Scholz & Mendoza-Franco, 1995)
• Capillaria cincli Yamaguti, 1941
• Capillaria coeca Matsaberidze, 1981
• Capillaria collaris Linstow, 1873 accepted as Capillaria anatis (Schrank, 1790)
• Capillaria colubra Pence, 1970 accepted as Ophidiocapillaria sonsinoi Parona, 1897
• Capillaria columbae Rudolphi, 1819
• Capillaria combesi Chabaud & Knoepffler, 1985
• Capillaria combologiodes Ehrlich & Mikacic, 1940
• Capillaria confusa Freitas & Almeida, 1935
• Capillaria contorta (Creplin, 1839)
• Capillaria cooperi Johnston & Mawson, 1945 accepted as Neocapillaria cooperi (Johnston & Mawson, 1945)
• Capillaria coregoni Shulman Albova, 1953 accepted as Ichthyocapillaria salvelini (Polyanskii, 1952)
• Capillaria corneti Baer, 1959 accepted as Aonchotheca corneti (Baer, 1959)
• Capillaria corvorum Rudolphi, 1819 accepted as Baruscapillaria corvorum (Rudolphi, 1819)
• Capillaria costacruzi Travassos, 1932
• Capillaria crococilus Ashford & Muller, 1978
• Capillaria crossostomae Wang, 1987
• Capillaria cubana Freitas & Lent, 1937
• Capillaria curilica Zhukov, 1960 accepted as Ichthyocapillaria salvelini (Polyanskii, 1952)
• Capillaria cyanopicae Lopez-Neyra, 1946
• Capillaria cyprinodonticola Huffman & Bullock, 1973 accepted as Hepatocapillaria cyprinodonticola (Huffman & Bullock, 1973)
• Capillaria decapteri Luo, 2001
• Capillaria delamurei Zablotzkii, 1971 accepted as Ichthyocapillaria delamurei (Zablotzkii, 1971)
• Capillaria dessetae Justine, 1990 accepted as Aonchotheca dessetae (Justine, 1990)
• Capillaria dicruri (Wang, 1987)
• Capillaria didelphis Butterworth & Beverley-Burton, 1977
• Capillaria diesingi Kolenati, 1856
• Capillaria dubia Travassos, 1917 accepted as Eucoleus dubius Travassos, 1917
• Capillaria eberthi Freitas & Lent, 1935
• Capillaria emberizae Yamaguti, 1961
• Capillaria erinacei Rudolphi, 1819
• Capillaria eubursata (Skarbilovitsch, 1946)
• Capillaria euproctus Boulenger, 1917
• Capillaria europaea Mas-Coma, 1985
• Capillaria euryali Ricci, 1949
• Capillaria exigua Dujardin, 1845
• Capillaria fagei Arvy, 1951 accepted as Capillaria tritoniscristati Diesing, 1861
• Capillaria falconis-nisi Diesing, 1851
• Capillaria feliscati Diesing, 1851
• Capillaria fideli Rutkowska, 1980 accepted as Aonchotheca fideli (Rutkowska, 1980)
• Capillaria forresteri Kinsella & Pence, 1987
• Capillaria freemani Moravec, Margolis & McDonald, 1981 accepted as Piscicapillaria freemani (Moravec, Margolis & McDonald, 1981)
• Capillaria freitaslenti Araujo & Gandra, 1941
• Capillaria fritschi Travassos, 1914
• Capillaria fudingensis Wang, 1982