Cliopsidae

"Pruvotella" redirects here; not to be confused with Prevotella.

For the taxonomic synonym Pruvotella Motz-Kossowska, 1905, see Garveia.

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.

Cliopsidae
Cliopsis krohnii
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Clade:	Euopisthobranchia
Order:	Pteropoda
Superfamily:	Clionoidea
Family:	Cliopsidae (Costa, 1873)

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 ^[1]

Genus Pruvotella Pruvot-Fol, 1932

• Pruvotella danae Pruvot-Fol, 1942
  • Distribution : Bermuda, Oceanic
  • Length : 10 mm