Species (205)
- Dexiotrichides centralis Stokes 1885
- Dexiotricha polystyla Foissner 1987
- Cristigera minor Penard 1922
- Cyclidium centrale Smith 1897
- Cyclidium chlorelligerum Lepsi 1957
- Cyclidium ecaudatum Liebmann 1936
- Cyclidium curvatum Mansfeld 1922
- Cyclidium fuscum Kahl 1928
- Cyclidium flagellatum Kahl 1926
- Cyclidium gemmuliferum Penard 1922
- Cyclidium glaucoma Müller 1773
- Cyclidium granulosum Kahl 1931
- Cyclidium helgolandicum Mansfeld 1922
- Cyclidium heptatrichum Schewiakoff 1893
- Cyclidium lanuginosum Penard 1922
- Cyclidium instabile Clark 1866
- Cyclidium lentiforme Hemprich & Ehrenberg 1831
- Cyclidium longatum Fromentel 1876
- Cyclidium litomesum Stokes 1884
- Cyclidium marinum Borror 1963
- Cyclidium libellus Kahl 1926
- Cyclidium obliquum Kahl 1926
- Cyclidium muscicola Kahl 1931
- Craticuloscuta escobari Kozloff 1965
- Cristigera cirrifera Kahl 1928
- Cristigera media Kahl 1928
- Cristigera minuta Kahl 1928
- Cristigera constricta Madsen ?
- Cristigera paucisetosa Gourret & Roeser 1888
- Cristigera penardi Kahl 1931
- Cristigera setosa Kahl 1928
- Cristigera vestita Kahl 1928
- Cristigera sulcata Kahl 1933
- Cryptochilum reniforme Petz, Song & Wilbert 1995
- Cyclidium amoyensis Nie 1934
- Cyclidium borrori Small & Lynn 1985
- Cyclidium brandoni Kahl 1931
- Cyclidium caudens Kahl 1928
- Cyclidium candens Kahl 1928
- Cyclidium citrullus Cohn 1866
- Cyclidium oblongum Kahl 1931
- Cyclidium oligotrichum Kahl 1928
- Cyclidium opisthostoma Grandori & Grandori 1934
- Cyclidium paucisetum Lepsi 1926
- Cyclidium planum Hemprich & Ehrenberg 1831
- Cyclidium pellucidum Kahl 1931
- Cyclidium similans Kahl 1928
- Cyclidium plouneouri Dragesco 1963
- Cyclidium singulare Kahl 1926
- Cyclidium terricola Kahl 1931
- Cyclidium veliferum Kahl 1933
- Cyclidium spirale Kahl 1926
- Cyclidium versatile Penard 1922
- Cyclidium viride Fromentel 1876
- Myxophthirus anomalocardiae Silva Neto 1992
- Mytilophilus pacificae Antipa & Dolan 1985
- Paranophrys marina Thompson & Berger 1965
- Paratetrahymena wassi Thompson 1963
- Ancistrumina bulgarica Raabe 1970
- Ancistrumina cylidioides Issel 1903
- Ancistrumina hydrobiae Raabe 1936
- Ancistrumina kofoidi Bush 1937
- Ancistrumina macomae Chatton & Lwoff 1949
- Ancistrumina nucellae Khan 1970
- Ancistrumina limnica Raabe 1947
- Ancistrumina ovata Cheissin 1930
- Ancistrumina tihanyensis Raabe 1950
- Ancistrumina tellinae Issel 1903
- Anophryoides soldoi Small & Lynn 1985
- Anophryoides salmacida Mugard 1949
- Anophryoides puytoraci Puytorac & Grolière, sensu 1979
- Anophrys elongata Biggar 1932
- Entorhipidium multimicronucleatum Lynch 1929
- Entorhipidium echini Lynch 1929
- Entorhipidium pilatum Lynch 1929
- Entorhipidium multinucleatum Lynch 1929
- Entorhipidium tenue Lynch 1929
- Histiobalantium agile Stokes 1886
- Histobalantium marinum Kahl 1933
- Histobalantium majus Kahl 1931
- Histiobalantium bodamicum Krainer & Müller 1995
- Histobalantium natans Claparède & Lachmann 1859
- Pleuronema citrullus Cohn 1866
- Proboveria thyasirae Fenchel 1965
- Proboveria triangularis Fenchel 1965
- Platynematum sociale Penard 1922
- Protocyclidium terrenum Alekperov 1993
- Ptychostomum campelomae Kozloff 1960
- Sathrophilus hovassei Groliere 1975
- Sathrophilus muscorum Kahl 1931
- Sphenostomella vernalis Dragesco & Groliere 1969
- Saprophilus muscorum Kahl 1931
- Thigmophrya annella Fenchel 1965
- Thigmophrya saxicavae Fenchel 1964
- Cristigera phoenix Penard 1922
- Cyclidium elongatum Claparède & Lachmann 1859
- Protocyclidium citrullus Cohn 1866
- Protocyclidium sphagnetorum Sramek-Husek 1949
- Cristigera pleuronemoides Roux 1899
- Cristigera pleuronemoides sensu Penard 1922