Species (22.489)
- Holophrya ovum Ehrenberg 1831
- Holophrya perlucida Gajevskaja 1927
- Holosticha adami Foissner 1982
- Holophryoides ovalis Fiorentini 1890
- Holosticha algivora Kahl 1932
- Holosticha alveolata Kahl 1932
- Holosticha alpestris Foissner 1981
- Holosticha australis Blatterer & Foissner 1988
- Holosticha arenicola Kahl 1932
- Holosticha bergeri Foissner 1987
- Holosticha contractilis Dragesco 1970
- Holosticha danubialis Kaltenbach 1960
- Holosticha discocephala Kahl 1932
- Holosticha diademata Rees 1884
- Holosticha distyla Buitkamp 1977
- Holosticha fasciola Kahl 1932
- Holosticha discocephalus Kahl 1932
- Holosticha foissneri Petz, Song & Wilbert 1995
- Holosticha extensa Kahl 1932
- Holosticha fontinalis Lepsi 1926
- Holosticha gibba Stein 1859
- Intranstylum eismondi Kahl 1935
- Intranstylum invaginatum Stokes 1886
- Intranstylum asellicola Kahl 1935
- Intranstylum rhabdostyla Eismond 1895
- Intranstylum macrostylum D'Udekem 1862
- Intranstylum simulans Plate 1886
- Inversochona peregra Jankowski 1973
- Intranstylum steini Wrzesniowski 1877
- Isotricha prostoma Stein 1859
- Jaocorlissia dragescoi Corliss 1971
- Jaroschia sumptuosa Foissner 1993
- Jirovecella hegemonis Lom 1957
- Juxtamesnilella deronis Puytorac 1969
- Juxtaradiophrya multispiculata Cheissin 1930
- Juxtaradiophrya elongata Delphy 1922
- Juxtaradiophrya radiata Cheissin 1930
- Juxtaradiophrya naisenis Puytorac 1954
- Juxtaradiophrya enchytraeoidei Puytorac 1955
- Kahlia bacilliformis Gelei 1954
- Juxtaradiophrya rossolimoi Cheissin 1930
- Juxtaradiophrya styloscolecis Heidenreich 1935
- Kahlia costata Kahl 1932
- Kahlia simplex Horváth 1934
- Kahliela leptosirra Tucolesco 1962
- Kahliella costata Kahl 1932
- Kahliella acrobates Horváth 1932
- Kahliella franzi Foissner 1982
- Kahliella marina Foissner, Adam & Foissner 1982
- Kahliella leptocirra Tucolesco 1962
- Kahliella microstoma Dragesco & Dragesco-Kernéis 1986
- Kahliella multiseta Dragesco 1970
- Kahliella simplex Horváth 1934
- Kahlilembus attenuatus Smith 1897
- Kalometopia perronnei Bramy 1962
- Kentrophoros fistulosus Faure-Fremiet 1950
- Kentrophoros fasciolatum Sauerbrey 1928
- Kentrophoros canale Wright 1982
- Kuklikophrya ougandae Dragesco 1972
- Kyaroikeus cetis Sniezek, Coats & Small 1995
- Laackmanniella naviculaefera Laackmann 1907
- Laackmanniella prolongata Laackmann 1907
- Laboea conicum Lohmann 1908
- Laboea strobilia Lohmann 1908
- Lacazea ovalis Dragesco 1960
- Lachmannella recurva Claparède & Lachmann 1859
- Lacerus pespelicani Penard 1922
- Paradiophrys multinucleatus Hartwig 1973
- Lacrymaria aciformis Kahl 1933
- Lacrymaria actinoboliformis Dumas 1937
- Lacrymaria acuta Kahl 1933
- Lacrymaria affinis Bock 1952
- Lacrymaria aquaedulcis Roux 1901
- Lacrymaria caspia Grimm 1876
- Lacrymaria caudata Kahl 1933
- Lacrymaria cirrifera Penard 1922
- Lacrymaria chilensis Bürger 1906
- Lacrymaria clepsiniformis Penard 1922
- Lacrymaria conifera Burkovsky 1970
- Lacrymaria coniformis Bürger 1908
- Lacrymaria delamarei Dragesco 1954
- Lacrymaria elegans Dumas 1930
- Lacrymaria elliptica Bürger 1908
- Lacrymaria filiformis Maskell 1886
- Lacrymaria globulosa Dumas 1929
- Lacrymaria gutta Ehrenberg 1831
- Lacrymaria kahli Dragesco 1954
- Lacrymaria lagenula Claparède & Lachmann 1859
- Lacrymaria lagenulaeformis Dumas 1929
- Lacrymaria lanceolata Gelei 1954
- Lacrymaria teres Stokes 1886
- Lacrymaria torta Kahl 1926
- Lacrymaria trichocysta Dragesco 1954
- Lacrymaria trinlineata Penard 1922
- Lacrymaria urnula Kahl 1930
- Lacrymaria truncata Stokes 1885
- Lacrymaria vaginifera Song & Wilbert 1989
- Lacrymaria vermicularis Müller
- Lacrymaria versatilis Quennerstedt 1867
- Hyalospira caridinae Miyashita 1933