• Acanthostomella conicoides Kofoid & Campbell, 1929
• Acanthostomella elongata Kofoid & Campbell, 1929
• Acanthostomella gracilis Brandt, 1896
• Acanthostomella lata Kofoid & Campbell, 1929
• Acanthostomella minutissima Kofoid & Campbell, 1929
• Acanthostomella norvegica Daday, 1887
• Acanthostomella norvegica Kofoid & Campbell, 1929
• Acanthostomella obtusa Kofoid & Campbell, 1929
• Acaryophrya collaris Kahl, 1926
• Acineria incurvata Dujardin, 1841
• Acineria nasuta Lepsi, 1962
• Acineta amphiasci Precht, 1935
• Acineta branchicola Precht, 1935
• Acineta compressa Claparède & Lachmann, 1859
• Acineta corophii Collin, 1912
• Acineta craterellus Collin, 1909 accepted as Anthacineta craterellus (Collin, 1909) Jankowski, 1978
• Acineta diversa
• Acineta excirolensis Fernandez-Leborans, Yukio & Keizo, 2003
• Acineta foetida Maupas, 1881
• Acineta grahami Allgén, 1955
• Acineta harpacticicola Precht, 1935
• Acineta hokkaidensis Fernandez-Leborans, Yukio & Keizo, 2003
• Acineta laevis Dons, 1918
• Acineta laomedeae Precht, 1935
• Acineta papillifera Keppen, 1888
• Acineta pyriformis Stokes, 1891
• Acineta schulzi Kahl, 1934
• Acineta sulcata Dons, 1927
• Acineta tubenosa
• Acineta tuberosa Ehrenberg, 1833
• Acinetoides greeffii Plate, 1888 accepted as Hypocoma parasitica Gruber, 1884
• Acinetoides zoothamni Plate, 1888 accepted as Hypocoma parasitica Gruber, 1884
• Actinocyathula crenata (Fraipont, 1878) Curds, 1987
• Aegyria cristata Gourret & Roeser, 1888 accepted as Dysteria cristata (Gourret & Roeser, 1888) Kahl, 1931
• Aegyria legumen (Claparède & Lachmann, 1859) accepted as Dysteria monostyla (Ehrenberg, 1838) Kahl, 1931
• Aegyria oliva Claparède & Lachmann, 1859 accepted as Aegyriana oliva (Claparède & Lachmann, 1859) Song & Wilbert, 2002
• Aegyria pusilla Claparède & Lachmann, 1859 accepted as Dysteria pusilla Claparède & Lachmann, 1859
• Aegyria semilunaris Gourret & Roeser, 1886 accepted as Dysteria semilunaris (Gourret & Roeser, 1886) Kahl, 1931
• Aegyriana oliva (Claparède & Lachmann, 1859) Song & Wilbert, 2002
• Aegyriana paroliva Song & Wilbert, 2002
• Agnathodysteria littoralis Deroux, 1976
• Albatrossiella agassizi Kofoid & Campbell, 1929
• Albatrossiella filigera (Laackmann, 1910) Kofoid & Campbell, 1929
• Albatrossiella minutissima (Meunier, 1910)
• Ambiphrya miri Raabe, 1952
• Amphileptiscus shii Song & Bradbury, 1998
• Amphileptus aeschtae Lin, Song & Li, 2007
• Amphileptus agilis Penard, 1922
• Amphileptus anser
• Amphileptus claparedii Stein, 1867
• Amphileptus claperedei Stein
• Amphileptus eigneri Lin, Song & Li, 2007
• Amphileptus fasciola
• Amphileptus filum Gruber, 1884
• Amphileptus folium
• Amphileptus fusidens Kahl, 1926
• Amphileptus gui Lin, Song & Warren, 2005
• Amphileptus inquieta Biernacka, 1963
• Amphileptus lanceolatus (Dragesco, 1965)
• Amphileptus litonotiformis Song, 1991
• Amphileptus longicollis
• Amphileptus margaritifer
• Amphileptus marinus (Kahl, 1931) Song, Wilbert & Hu, 2004
• Amphileptus meleagris
• Amphileptus monilatus Stokes, 1886 accepted as Dileptus monilatus (Stokes, 1886) Kahl, 1931
• Amphileptus moniliger
• Amphileptus ovum
• Amphileptus papillosus
• Amphileptus rotunda Kahl, 1930
• Amphileptus sikorai Lin, Song & Warren, 2005
• Amphileptus trachelioides Zacharias, 1893
• Amphileptus viridis
• Amphileptus vorax
• Amphileptus yuianus Lin, Song & Warren, 2005
• Amphisiella annulata (Kahl, 1928) Borror, 1972
• Amphisiella antarctica Wilbert & Song, 2005
• Amphisiella arenicola Fernandez-Leborans & Novillo, 1992
• Amphisiella capitata (Perejaslawzewa, 1886) Kahl, 1930-5
• Amphisiella lithophora Fauré-Fremiet, 1954 accepted as Psammocephalus lithophora (Faure-Fremiet, 1954) Wicklow, 1982
• Amphisiella marioni Gourret & Roeser, 1888
• Amphisiella milnei Kahl, 1932
• Amphisiella oblonga (Schewiakoff, 1893) Kahl, 1930-5
• Amphisiella ovalis Fernandez-Leborans & Novillo, 1992
• Amphisiella thiophaga Kahl, 1928
• Amphorella amphora (Claparède & Lachmann, 1858)
• Amphorella brandti (Joergensen, 1924)
• Amphorella fusiformis Meunier, 1910 accepted as Helicostomella fusiformis (Meunier) Jorgensen, 1924
• Amphorella minor Jörgensen, Kofoid & Campbell, 1929
• Amphorella quadrilineata (Claparède & Lachmann, 1858)
• Amphorella steenstrupii Daday, 1887 accepted as Steenstrupiella steenstrupii (Claparède & Lachmann, 1858) Kofoid & Campbell, 1929
• Amphorellopsis acuta (Schmidt, 1901)
• Amphorellopsis carinata Chardez, 1977 accepted as Ogdeniella carinata (Chardez, 1977) Golemansky, 1982
• Amphorellopsis elegans Golemansky, 1970 accepted as Ogdeniella elegans (Golemansky, 1970) Golemansky, 1982
• Amphorellopsis lucida Golemansky, 1970 accepted as Ogdeniella lucida (Golemansky, 1970) Golemansky, 1982
• Amphorellopsis maximus Golemansky, 1970 accepted as Ogdeniella maxima (Golemansky, 1970) Golemansky, 1982
• Amphorellopsis pusilla Chardez, 1977 accepted as Ogdeniella pusilla (Chardez, 1977) Golemansky, 1982
• Amphorellopsis quadrangula Kofoid & Campbell, 1929
• Amphorellopsis quinquealata (Laackmann) Balech, 1971
• Amphorellopsis taschevi Golemansky, 1970 accepted as Ogdeniella taschevi (Golemansky, 1970) Golemansky, 1982
• Amphorellopsis tetragona (Jørgensen, 1924) Kofoid & Campbell, 1929