View source for Order Hypotrichida Stein 1859

Suborder Stichotrichina Faure-Fremiet 1961
===Family Spirofilidae Gelei 1929===
Phylum Kahliella Corliss 1960
*Kahliella costata (Kahl 1932) Corliss 1960

===Family Strongylidiidae Faure-Fremiet 1961===
Phylum Urostrongylum Kahl 1932
*Urostrongylum caudatum Kahl 1932

===Family Urostylidae Bütschli 1889===
Phylum Paraholosticha Kahl 1932
*Paraholostycha polychaeta Borror 1966
Phylum Paraurostyla Borror 1972
*Paraurostyla gibba (Kahl 1932) Borror 1972
*Paraurostyla dispar (Kahl 1932) Borror 1972
Phylum Urostyla Ehrenberg 1830
*Urostyla marina Kahl 1930

===Family Holostichidae Faure-Fremiet 1961===
Phylum Amphisiella Gourett et Roeser 1888
*Amphisiella milnei Kahl 1932
Phylum Holosticha Wrzesnioski 1887
*Holosticha diademata Rees 1883
*Holosticha discocephalus Kahl 1932
*Holosticha kessleri (Wrzesniowski 1877)
*Holosticha fasciola Kahl 1932
*Holosticha extensa Kahl 1932
*Holosticha manca Kahl 1932
*Holosticha simplicis Wang et Nie 1932
Phylum Keronopsis Penard 1922
*Keronopsis multinucleatus Maupas 1883
*Keronopsis ovalis Kahl 1932
*Keronopsis rubra (Ehrenberg 1838) Kahl 1932
Phylum Psammomitra Borror 1972
*Psammomitra brevicaudata (Kahl 1933) Borror 1972
Phylum Trachelostyla Kahl 1932
*Trachelostyla caudata (Kahl 1932) Moeda et Garey 1984
*Trachelostyla pediculiformis (Kahl 1932) Moeda et Carey 1984
Phylum Trichotaxis Stokes 1891
*Trichotaxis multinucleatus Burkovsky 1970 – type locality
Phylum Uroleptopsis Kahl 1932
*Uroleptopsis viridis (Perejaslawzewa 1885) Kahl 1935
Phylum Uroleptus Ehrenberg 1831
*Uroleptus caudatus (Claparède et Lachmann 1858) Kahl 1932

===Family Keronidae Dujardin 1840===
Phylum Epiclintes Stein 1863
*Epiclintes felis (Müller 1786) Carey et Tatchell 1983

Suborder Sporadotrichina Faure-Fremiet 1961
===Family Oxytrichidae Ehrenberg 1838===
Phylum Gastrostyla Englemann 1862
*Gastrostyla pulchra Perejaslawzewa 1886
Phylum Opisthotricha Kent 1882
*Opistotricha ovata Kahl 1935
Phylum Oxytricha Bory St. Vincent 1826
*Oxytricha bifaria Stokes 1887
*Oxytricha discifera Kahl 1932
*Oxytricha marina Kahl 1932
*Oxytricha ovalis Kahl 1932
Phylum Urosoma Kowalewski 1882
*Urosoma caudata Stokes 1887

===Family Aspidiscidae Ehrenberg 1838===
Phylum Aspidisca Ehrenberg 1838
*Aspidisca dentata Kahl 1928
*Aspidisca fusca Kahl 1928
*Aspidisca irinae Burkovsky 1970 – type locality
*Aspidisca lyncaster (Muller 1773) Ehrenberg 1830
*Aspidisca major (Madsen 1931)
*Aspidisca psammobiotica Burkovsky 1970 – type locality
*Aspidisca sedigita Quennerstedt 1867
*Aspidisca steini Buddenbrock 1920

===Family Euplotidae Ehrenberg 1838===
Phylum Certesia Fabre-Domergue 1885
*Certesia quadrinucleata Fabre-Domergue 1885
Phylum Diophrys Dujardin 1841
*Diophrys appendiculata (Ehrenberg 1838)
*Diophrys irmgard Mansfeld 1923
*Diophrys kahli Dragesco 1963
*Diophrys scutum Dujardin 1841
Phylum Diophryopsis Hill et Borror 1992
*Diophryopsis histrix (Buddenbrock 1920) Foissner 1996 
Phylum Discocephalus Ehrenberg in Hemprich et Ehrenberg 1832
*Discocephalus ehrenbergi Dragesco 1960
*Discocephalus minimus Dragesco 1968
*Discocephalus rotatorius (Ehrenberg 1831)
Phylum Euplotes Ehrenberg in Hemprich et Ehrenberg 1831
*Euplotes baleatus (Dujardin 1841)
*Euplotes balticus (Kahl 1930-5) Dragesco 1966
*Euplotes bisulcatus Kahl 1931
*Euplotes crassus Dujardin 1841
*Euplotes cristatus Kahl 1932
*Euplotes elegans Kahl 1932
*Euplotes moebiusi Kahl 1931
*Euplotes trisulcatus Kahl 1932
*Euplotes zenkewitchi Burkovsky 1970 – type locality
Phylum Psammocephalus Wicklow 1982
*Psammocephalus borrori Wicklow 1982
*Psammocephalus faurei (Dragesco 1963) Wicklow 1982
Phylum Uronychia Stein 1859
*Uronychia setigera Calkinsi 1902
*Uronychia transfuga (Müller 1786) Stein 1859

===Family Gastrocirrhidae Faure-Fremiet 1961===
Phylum Eplotidium Noland 1937
*Eplotidium psammophilus (Vacelet 1961) Borror 1972

*[[Species of uncertain taxonomic affiliation, presumbaly from Order Karyorelictida:]]
Phylum Ciliofaurea Dragesco 1960
*Ciliofaurea arenicola Dragesco 1953
Phylum Cryptopharynx Kahl 1930
*Cryptopharynx setigerus Kahl 1928

[[rus: Отряд Hypotrichida Stein 1859]]