Gastrotricha
Klasifikasi

Gastrotricha terbagi menjadi dua ordo dan beberapa familia:
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 Ordo Macrodasyida Remane, 1925 [Rao and Clausen, 1970] Famili Cephalodasyidae Hummon & Todaro, 2010 Genus Cephalodasys Remane, 1926  Genus Dolichodasys Gagne, 1977  Genus Megadasys Schmidt, 1974  Genus Mesodasys Remane, 1951  Genus Paradasys Remane, 1934  Genus Pleurodasys Remane, 1927 Famili Dactylopodolidae Strand, 1929 Genus Dactylopodola Strand, 1929  Genus Dendrodasys Wilke, 1954  Genus Dendropodola Hummon, Todaro & Tongiorgi, 1992 Famili Lepidodasyidae Remane, 1927 Genus Lepidodasys Remane, 1926 Famili Macrodasyidae Remane, 1926 Genus Macrodasys Remane, 1924  Genus Urodasys Remane, 1926 Famili Planodasyidae Rao & Clausen, 1970 Genus Crasiella Clausen, 1968  Genus Planodasys Rao & Clausen, 1970 Famili Redudasyidae Todaro, Dal Zotto, Jondelius, Hochberg et al., 2012 Genus Anandrodasys Todaro, Dal Zotto, Jondelius, Hochberg et al., 2012  Genus Redudasys Kisielewski, 1987 Famili Thaumastodermatidae Remane, 1927 Subfamili Diplodasyinae Ruppert, 1978 Genus Acanthodasys Remane, 1927  Genus Diplodasys Remane, 1927  Subfamili Thaumastodermatinae Remane, 1927 Genus Hemidasys Claparède, 1867  Genus Oregodasys Hummon, 2008 =(Platydasys Remane, 1927)  Genus Pseudostomella Swedmark, 1956  Genus Ptychostomella Remane, 1926  Genus Tetranchyroderma Remane, 1926  Genus Thaumastoderma Remane, 1926  Famili Turbanellidae Remane, 1927 Genus Desmodasys Clausen, 1965  Genus Dinodasys Remane, 1927  Genus Paraturbanella Remane, 1927  Genus Prostobuccantia Evans & Hummon, 1991  Genus Pseudoturbanella d'Hondt, 1968  Genus Turbanella Schultze, 1853 Famili Xenodasyidae Todaro, Guidi, Leasi & Tongiorgi, 2006 Genus Chordodasiopsis Todaro, Guidi, Leasi & Tongiorgi, 2006  Genus Xenodasys Swedmark, 1967 Incertae sedis Genus Marinellina Ruttner-Kolisko, 1955 :  Ordo Chaetonotida Remane, 1925 [Rao and Clausen, 1970] Subordo Multitubulatina d'Hondt, 1971 Famili Neodasyidae Remane, 1929 Genus Neodasys Remane, 1927 Subordo Paucitubulatina d'Hondt, 1971 Famili Chaetonotidae Gosse, 1864 Subfamili Chaetonotinae Kisielewski, 1991 Genus Arenotus Kisielewski, 1987  Genus Aspidiophorus Voigt, 1903  Genus Caudichthydium Schwank, 1990  Genus Chaetonotus Ehrenberg, 1830  Genus Fluxiderma d'Hondt, 1974  Genus Ichthydium Ehrenberg, 1830  Genus Halichaetonotus Remane, 1936  Genus Heterolepidoderma Remane, 1927  Genus Lepidochaetus Kisielewski 1991  Genus Lepidodermella Blake, 1933  Genus Polymerurus Remane, 1927  Genus Rhomballichthys Schwank, 1990  Subfamili Undulinae Kisielewski 1991 Genus Undula Kisielewski 1991  Famili Dasydytidae Daday,1905 Genus Anacanthoderma Marcolongo, 1910  Genus Chitonodytes Remane, 1936  Genus Dasydytes Gosse, 1851  Genus Haltidytes Remane 1936  Genus Ornamentula Kisielewski 1991  Genus Setopus Grünspan, 1908  Genus Stylochaeta Hlava, 1905 Famili Dichaeturidae Remane, 1927 Genus Dichaetura Lauterborn, 1913 Famili Muselliferidae Leasi & Todaro, 2008 Genus Diuronotus Todaro, Kristensen & Balsamo, 2005  Genus Musellifer Hummon, 1969 Famili Neogosseidae Remane, 1927 Genus Neogosseav Remane, 1927  Genus Kijanebalola Beauchamp, 1932 Famili Proichthydiidae Remane, 1927 Genus Proichthydium Cordero, 1918  Genus Proichthydioides Sudzuki, 1971 Famili Xenotrichulidae Remane, 1927 Subfamili Draculiciterinae Ruppert, 1979 Genus Draculiciteria Hummon, 1974  Subfamili Xenotrichulinae Remane, 1927 Genus Heteroxenotrichula Wilke, 1954  Genus Xenotrichula Remane, 1927