Species (241)
- Stylonychia mytilus Müller 1773
- Stylonichia mutabunda Dumas 1930
- Stylonychia notophora Stokes 1885
- Stylonychia octonistylus Dumas 1937
- Stylonychia pulchra Perejaslawzewa 1885
- Stylonychia pustulata Müller 1786
- Stylonychia quadrinucleata Alekperov & Musaev 1988
- Stylonychia reclinis Dumas 1930
- Stylonychia silurus Müller 1773
- Stylonychia regularis Fromentel 1876
- Stylonychia putrina Stokes 1885
- Trichoda mytilus Müller 1773
- Trichoda silurus Müller 1773
- Stylonichia pustulata
- Stylonychia mytilus-Komplex
- Cyclidium radians
- Oxytricha platysoma
- Oxytricha platystoma Perty 1825
- Histriculus setosa
- Kerona rostrata Müller 1786
- Kerona haustellum Müller 1786
- Kerona fimbriata Müller 1786
- Kerona ludio Müller 1773
- Histriculus similis Quennerstedt 1867
- Histriculus similis sensu Buitkamp
- Histrio muscorum Foissner, Blatterer, Berger & Kohmann 1991
- Histrio muscorum Kahl 1932
- Kerona mytilus Müller 1786
- Kerona lanceolata Dujardin 1841
- Laurentiella macrostoma Dragesco 1966
- Kerona histrio Müller 1786
- Laurentiella macrostoma Dragesco & Njiné 1971
- Kerona silurus Dumas 1929 ssp. congyrans
- Pauroleptus strenuus Dingfelder 1962
- Kerona haustrum Müller 1786
- Sterkiella terricola Berger 1999
- Stylonychia nodulinucleata Shi & Li 1993
- Stylonychia pseudograndis Wang & Nie 1935
- Stylonychia pusilla Stokes 1878
- Stylonychia pusilla Kahl 1932
- Oxytricha eurystoma Ehrenberg 1838