Chaetonotus (Tristratachaetus) rhombosquamatus, Kolicka, Małgorzata, Kisielewski, Jacek, Nesteruk, Teresa & Zawierucha, Krzysztof, 2013

Kolicka, Małgorzata, Kisielewski, Jacek, Nesteruk, Teresa & Zawierucha, Krzysztof, 2013, Gastrotricha from the Poznań Palm House — one new subgenus and three new species of freshwater Chaetonotida (Gastrotricha), Zootaxa 3717 (2), pp. 231-279 : 244-245

Subgenus Chaetonotus sensu stricto Ehrenberg, 1830

Type species: Chaetonotus larus (Müller, 1773) Terra typica : Denmark

Clearly a polyphyletic subgenus in terms of the molecular data (Kånneby et al. 2012, 2013); encompasses 78 nominal freshwater and 4 nominal marine species. Present in benthic, interstitial, peryphytic and rarely also in semiplanktonic habitats.

A, E—Dorsal view with visible outer layer of cuticle in different specimens, B, F—Ventral view with visible outer layer of cuticle in different specimens, C, D, G, H—Variations of outer layer of cuticle in different specimens. All measurements in micrometers.