Species (1.575)
- Lagenophrys dennisi Clamp 1987
- Lagenophrys discoidea Kellicott 1887
- Lagenophrys incompta Clamp 1987
- Lagenophrys johnsoni Clamp 1990
- Lagenophrys inflata Swarczewsky 1930
- Lagenophrys foxi Clamp 1987
- Lagenophrys labiata Stokes 1887
- Lagenophrys lenticulata Kellicott 1885
- Lagenophrys macrostoma Swarczewsky 1930
- Lagenophrys lunatus Imamura 1940
- Lagenophrys limnoriae Clamp 1988
- Lagenophrys metopauliadis Corliss & Brough 1965
- Lagenophrys missouriensis Clamp 1987
- Lagenophrys nassa Stein 1851
- Lagenophrys mololistrae Stammer 1935
- Lagenophrys oblonga Swarczewsky 1930
- Lagenophrys obovata Stokes 1887
- Lagenophrys ornata Swarczewsky 1930
- Lagenophrys orchestiae Abonyi 1928
- Lagenophrys oregnonesis Clamp 1987
- Lagenophrys ovalis Swarczewsky 1930
- Lagenophrys paguri
- Lagenophrys primitiva Swarczewsky 1930
- Lagenophrys parva Swarczewsky 1930
- Lagenophrys platei Wallengren 1900
- Lagenophrys simplex Swarczewsky 1930
- Lagenophrys similis Swarczewsky 1930
- Lagenophrys singularis Kellicott 1887
- Lagenophrys solida Swarczewsky 1930
- Lagenophrys stokesi Swarczewsky 1930
- Lagenophrys stygia Clamp 1990
- Lagenophrys vaginicola Stein 1852
- Lagenophrys wallengreni Abonyi 1928
- Lembus putrinus Kahl 1928
- Lembus verminus Müller 1786
- Lagenophrys anticthos Clamp 1988
- Malacophrys viridis Foissner 1980
- Marituja pelagica Gajewskaja 1928
- Mesnilella clavata Leidy 1855
- Malacophrys rotans Kahl 1926
- Malacophrys sphagni Penard 1922
- Astylozoon caudatum Phillips 1883
- Astylozoon enriquesi Foissner 1977
- Balanonema biceps Penard 1922
- Balanonema dubium Penard 1922
- Balanonema sapropelica Foissner 1978
- Astylozoon fallax Engelmann 1862
- Astylozoon pyriforme Schewiakoff 1893
- Astylozoon faurei Kahl 1935
- Calyptotricha chlorelligera Lepsi 1957
- Calyptotricha lanuginosa Penard 1922
- Calyptotricha pleuronemoides Phillips 1882
- Campanella tincta Stokes 1887
- Carchesium limeticum
- Carchesium marginatum Dumas 1930
- Carchesium longipes Dumas 1930
- Carchesium palnigeniae Dumas 1930
- Carchesium pictum Ehrenberg 1831
- Carchesium pectinatum Zacharias 1897
- Carchesium pygmaeum Ehrenberg 1838
- Carchesium pygmeum Udekem 1864
- Carchesium septatum Forrest in Kent 1881
- Carchesium spectabile Ehrenberg ?
- Cardiostoma vermiforme Kahl 1928
- Campanella umbellaria Linnaeus 1758
- Carchesium bipartitum Dumas 1930
- Carchesium brevistylum Stiller 1931
- Carchesium chlorostigma Ehrenberg 1831
- Carchesium corybosum Penard 1922
- Carchesium cyclopidarum Nenninger 1948
- Carchesium duplex Dumas 1930
- Bursostoma bursaria Vörösvary 1950
- Carchesium erlangensis Nenninger 1948
- Carchesium epistylis Claparède & Lachmann 1858
- Carchesium gemellum Müller 1786
- Carchesium granulatum Kellicott 1887
- Carchesium lachmanni Kent 1881
- Deltopylum rhabdoides Faure-Fremiet & Mugard 1946
- Dexiotricha centralis Stokes 1885
- Dexiostoma campylum Stokes 1886
- Dexiotricha granulosa Kent 1881
- Dexiotricha colpidiopsis Kahl 1926
- Dexiotricha plagia Stokes 1885
- Dexiotricha tranquillus Kahl 1926
- Dexiotrichides centralis Stokes 1885
- Dichilum cuneiforme Schewiakoff 1892
- Dichilum intermedium Gajevskaja 1927
- Dichilum platessoides Faure-Fremiet 1924
- Dichilum wrzesniowskii Mereschkowski 1877
- Dexiotricha polystyla Foissner 1987
- Tetrahymena farleyi Lynn, Gransden, Wright & Josephson 2000
- Cristigera minor Penard 1922
- Ctedoctema acanthocrypta Stokes 1884
- Ctedoctema ovalis Kahl 1926
- Cyclidium centrale Smith 1897
- Cyclidium chlorelligerum Lepsi 1957
- Cyclidium ecaudatum Liebmann 1936
- Cyclidium curvatum Mansfeld 1922
- Cyclidium fuscum Kahl 1928
- Cyclidium flagellatum Kahl 1926