Species (565)
- Pseudoblepharisma tenue ssp. typica
- Blepharisma tenue
- Spirostomum teres ssp. caudatum
- Climacostomum virens ssp. salinarum
- Condylostoma remanei Dragesco 1960 ssp. oxyoura
- Conchopthirius mytili Morgan 1925
- Conchophthirius antedonis
- Conchophthirius steenstruppi Stein 1861
- Conchophthirus caryoclada Kidder 1933
- Spirostomum minor Roux 1901 ssp. minor
- Spirostomum chlorelligera Foissner ß
- Climacostomum diedrum Faure-Fremiet 1924
- Climacostomum emarginatum Stokes 1885
- Climacostomum minimum Foissner 1980
- Climacostomum gigas Meunier 1907
- Climacostomum patulum
- Climacostomum stepanowii Entz 1901
- Compactum lateritium Hirshfield, Isquith & Bhandary 1965
- Conchophthirius anodontae Stein 1861
- Conchophthirius metchnikoffi Certes 1891
- Conchophthirius mytilis Morgan 1925
- Conchophthirus anodontae Ehrenberg 1838
- Conchophthirus acuminatus Claparède & Lachmann 1858
- Conchophthirus antedonis Andre 1910
- Conchophthirus curtus Engelmann 1861
- Conchophthirus davidoffi Chatton 1911
- Condylostoma circumpedatum Meunier 1907
- Condylostoma curvum Burkovsky 1970
- Condylostoma enigmaticum Dragesco 1954
- Condylostoma fjeldi Hartwig 1973
- Condylostoma kahli Dragesco 1960
- Condylostoma minuta Dragesco 1954
- Condylostoma minutum Bullington 1940
- Condylostoma minimum Dragesco 1960
- Condylostoma patulum Claparède & Lachmann 1858
- Condylostoma patensis Bory 1826
- Condylostoma remanei Kahl 1932
- Condylostoma psammophilum Bock 1952
- Condylostoma reichi Wilbert & Kahan 1981
- Condylostoma spatiosum
- Condylostoma tardum Penard 1922
- Condylostoma terricola Foissner 1995
- Condylostoma tenuum Faure-Fremiet 1932
- Condylostoma vorticella Ehrenberg 1833
- Condylostoma wangi Foissner & Wölfl 1994
- Condylostomides grolieri Silva Neto 1994
- Copemetopus subsalsus Villeneuve-Brachon 1940
- Copemetopus chesapeakensis Small & Lynn 1985
- Conchophthirus discophorus Mermod 1914
- Conchophthirus elongatus Ghosh 1918
- Conchophthirus lamellidens Ghosh 1918
- Conchophthirus steenstrupii Stein 1861
- Conchophthirus raabei Kahl 1935
- Conchophyllum caryoclada Kidder 1933
- Condylostoma acutum Dragesco 1960
- Condylostoma arenarium Spiegel 1926
- Condylostoma culex Smith 1897
- Condylostoma granulosum Bullington 1940
- Condylostoma longissima Kahl 1928
- Condylostoma luteum Kahl 1932
- Condylostoma magnum Spiegel 1926
- Condylostoma patens Müller 1786
- Condylostoma sphagni Penard 1922
- Condylostoma rugosum Kahl 1932
- Condylostoma stagnale Wrzesniowski 1870
- Condylostoma subterraneum Lepsi 1962
- Condylostoma vastum Bock 1955
- Linostoma vorticella Ehrenberg 1833
- Linostomella vorticella Ehrenberg 1833
- Loxodes cithara Müller 1786
- Meserellus multiformis Müller ()
- Metafolliculina producta Wright 1859
- Metopides contorta Quennerstedt 1867
- Metopus acidiferus Kahl 1932
- Metopus acuminatus Stokes 1886
- Metopus alpestris Foissner 1980
- Metopus galeatus Kahl 1927
- Metopus gibbus Kahl 1927
- Metopus inflatus Fromentel 1876
- Metopus hasei Sondheim 1929
- Metopus laminarius Kahl 1927
- Metopus jankowski Dragesco 1968
- Metopus latus Kahl 1927
- Metopus latusculisetus Tucolesco 1962
- Metopus micrans Jankowski 1964
- Metopus lineolus Dumas 1930
- Metopus minimus Kahl 1932
- Metopus minor Kahl 1927
- Metopus mirabilis Kahl 1927
- Metopus mucicola Kahl 1927
- Metopus ovalis Kahl 1927
- Metopus ovatus Dragesco & Dragesco-Kernéis 1986
- Metopus nasutus Cunha 1915
- Metopus parastriatus Jankowski 1964
- Metopus palaeformis Kahl 1927
- Metopus propagatus Kahl 1926
- Metopus pulcher Kahl 1927
- Metopus pullus Kahl 1932
- Metopus pyriformis Levander 1894
- Metopus setosus Kahl 1927 ssp. minor