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Chaetonotidae is a family of gastrotrichs in the order Chaetonotida. It is the largest family of gastrotrichs with almost 400 species, some of which are marine and some freshwater. Current classification is largely based on shape and external structures but these are highly variable. Molecular studies show a high level of support for a clade containing Dasydytidae nested within Chaetonotidae. ==Genera== The following genera are included in the family Chaetonotidae according to the World Register of Marine Species: *Subfamily 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 ''Halichaetonotus'' Remane, 1936 : *Genus ''Heterolepidoderma'' Remane, 1926 : *Genus ''Ichthydium'' Ehrenberg, 1830 : *Genus ''Lepidochaetus'' Kisielewski, 1991 : *Genus ''Lepidoderma'' : *Genus ''Lepidodermella'' Blake, 1933 : *Genus ''Polymerurus'' Remane, 1927 : *Genus ''Rhomballichthys'' Schwank, 1990 : *Genus ''Chitonodytes : *Genus ''Hemichaetonotus : *Genus ''Pseudichthydium *Subfamily Undulinae'' Kisielewski, 1991 : *Genus ''Undula'' Kisielewski, 1991 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chaetonotidae」の詳細全文を読む スポンサード リンク
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