The Cliopsidae, common name sea angels, are a taxonomic family of small, free-swimming sea slugs, pelagic marine opisthobranch gastropod mollusks in the order Opisthobranchia.
As is the case in all gymnosome pteropods, these sea angels lack a shell except during an early embryonic stage.
The small lateral wing-like flaps (parapodia) are used in a slow swimming mode. The foot is reduced to three small median lobes.
Genera and species There are two monotypic genera recognised in the family Cliopsidae:
Genus Cliopsis Troschel, 1854 Cliopsis krohnii Troschel, 1854 Troschel, Beiträge zur Kenntniss der Pteropoden, Archiv f. Naturgesch., Jáhrg. xx. p. 222, p1. x. figs. 2-4.
Genus Pruvotella Pruvot-Fol, 1932 Pruvotella danae Pruvot-Fol, 1942 Distribution : Bermuda, Oceanic Length : 10 mm
References