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:
*Genus Arenotus<small> Kisielewski, 1987</small>
:*Arenotus strixinoi <small>Kisielewski, 1987</small>
*Genus Aspidiophorus<small> Voigt, 1903</small>
*Genus Caudichthydium<small> Schwank, 1990</small>
*Genus Chaetonotus<small> Ehrenberg, 1830</small>
*Genus Fluxiderma<small> d'Hondt, 1974</small>
*Genus Halichaetonotus<small> Remane, 1936</small>
*Genus Heterolepidoderma<small> Remane, 1926</small>
*Genus Ichthydium<small> Ehrenberg, 1830</small>
*Genus Lepidochaetus<small> Kisielewski, 1991</small>
*Genus Lepidoderma
*Genus Lepidodermella<small> Blake, 1933</small>
*Genus Polymerurus<small> Remane, 1927</small>
*Genus Rhomballichthys<small> Schwank, 1990</small>
*Genus Chitonodytes
*Genus Hemichaetonotus
*Genus Pseudichthydium
- Subfamily Undulinae<small> Kisielewski, 1991</small>
*Genus Undula<small> Kisielewski, 1991</small>
References