Species (22.489)
- Holosticha milnei Kahl 1932
- Euplotes moebiusi
- Holosticha monilata Kahl 1928
- Xiphodysteria spinifera
- Xystonella longicauda ssp. longicauda
- Xystonellopsis conicacauda
- Xystonellopsis favata
- Xystonellopsis pulchra ssp. pulchra
- Yagiua sp.
- Yvonniellina oedelemensis
- Yvonniellina sp. A
- Yvonniellina sp. B
- Yvonniellina variabilis
- Trachelophyllum biacuminatum
- Chaos intestinalis ssp. cordiformis
- Ratulus musculus
- Chervurtskella kolskiensis Koshevoj 1987
- Chilodon cucululus
- Chilodon uncinatus ssp. turritus
- Phialina minima Kahl 1927
- Chilodonella rostrata
- Chitonella chesapeakensis Small & Lynn 1985
- Holosticha musculus Kahl 1932 ssp. simplex
- Strongylidium microstoma Dragesco & Dragesco-Kernéis 1986
- Trichototaxis multinucleatus Burkovsky 1970
- Uronychia multicirrus
- Coniculostomum monilatum Dragesco & Njiné 1971
- Laurentiella monilata Dragesco & Njiné 1971
- Chaetospira monilata
- Bakuella crenata
- Stichotricha aculeata Kahl 1932 ssp. sapropelica
- Tetmemena bifaria
- Urostyla algivora
- Gorgonosoma arbuscula Swarczewsky 1928
- Holosticha alpestris Kahl 1932
- Urosoma acuta Dragesco 1972
- Stichotricha aculeata ssp. sociabilis
- Aspidisca bipartitum
- Oxytricha acuminatus Maskell 1886
- Aubertianella keiji Szczechura 1969
- Australana kaneis Jankowski 1986
- Stylonichia bicaudatus Dumas 1937
- Holosticha alveolata Kahl 1932
- Diophrys appendiculata ssp. samuchi
- Balantidium rochalima
- Holosticha globulifera Kahl 1932
- Cytharoides australis
- Lagynophrys acuminata
- Beersena limax Deroux 1978
- Baznosanuia nana Tucolesco 1962
- Batiola izhivacensis Koshevoj 1987
- Biggaria bermudensis Biggar & Wenrich 1932
- Oxytricha furcata Kahl 1932
- Lagenophrys acuminata
- Euplotopsis apsheronicus Agamaliev 1966
- Bipalmatum salinum Gajewskaja 1924
- Bitricha oblata Cameroun, O'Donoghue & Adlard 2000
- Urospina calcibia
- Euplotes garabagi
- Stylonichea bistyllus Dumas 1930
- Brachionus stentoreus Pallas 1766 ssp. coerulei
- Urostrongylum lentum
- Uroleptus lemani
- Holosticha lepisma
- Urostrongylum lentus
- Oxytricha leucoa
- Oxitricha lepus Müller 1773
- Paraholosticha lichenicola
- Pseudourostyla levis Takahashi 1973
- Trichoda lichenorum
- Amphileptiscus shii Song & Bradbury 1998
- Stylonichia limbifrons
- Pseudokeronopsis flavicans Kahl 1932
- Plagiotricha cercarioides
- Oxytricha curvata Kahl 1932
- Oxytricha cienkowskii Kowalewski 1882
- Amphileptus carchesii Mermod 1914 ssp. major
- Holosticha gracilis Kahl 1932
- Mystacodella cyclidium
- Chaetospira cylindracea
- Euplotes daidaleos
- Stichochaeta cylindrica
- Hypotrichidium deflectum
- Plagiotricha diana Bory 1824
- Ancistrum dautzenbergi
- Coccudina clausa
- Stylonychia cimex Müller 1773
- Holosticha capitata Perejaslawzewa 1885
- Trichoda augur
- Bakuella marina
- Metaurostylopsis marina Song, Petz & Warren 2001
- Oxytricha marina Kahl 1932
- Oxitricha bulla Müller 1786
- Oxytricha marina Kahl 1932
- Oxytricha macrostyla Wrzesniowski 1870
- Euplotes marinus
- Holosticha marioni Gourret & Roeser 1888
- Euplotes latus
- Steinia macrostoma Groliere 1975
- Aegyria semilunaris