Species (15.149)
- 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
- Aegyria ovalis
- Stylonichia labiata Dumas 1930
- Stychochoeta lacerata
- Chaetospira lacrymarioides
- Holosticha lacteus Kahl 1932
- Hemicycliostyla lacustris Gellert & Tamas 1958
- Ambiphrya miri Raabe 1952
- Oxytricha lanceolata Shibuya 1930
- Keronopsis litoralis
- Cladotricha koltzowii ssp. spiralis
- Euplotopsis latus
- Kerona larvoides Bory 1824
- Holosticha estuarii
- Euplotes eurystomus
- Trichoda cursor
- Trycholeptus aculeatus ssp. tetraculeatus
- Campbelliella milesi ssp. cylindrica
- Campylodinium ovumrajae Dogiel 1926
- Holosticha muscorum Kahl 1932
- Oxytricha muscorum Kahl 1932
- Oxytricha muscorum Kahl 1932
- Euplotes neapolitanus
- Holosticha multistilata Kahl 1928
- Rhabdophrya wailesi Kahl 1935
- Rhabdostyla invaginatum Stokes 1886
- Rhabdostyla ovum ssp. culicidarum
- Rhabdothoracella macrostegon Latteur & Bousez 1970
- Rhynchocoma hyperparasitica Chatton & Lwoff 1939
- Rossielella tintinubulum Makarieva 1979
- Saprophilus scandens Kahl 1926
- Savroniella rugosa Belokrys 1995
- Scalpratella angustioris Makarieva 1979
- Schizactinia multiramosa Wetzel 1953
- Metacineta micaster
- Scyphidia dermata