Clionidae

species of mollusc

The Clionidae are a family of sea angels, which are a group of pelagic marine gastropods.

Clione is a genus of small, floating sea slugs, pelagic marine gastropod mollusks in the family Clionidae, the sea angels.

species of mollusc

Paraclione is a genus of "sea angels", small floating sea slugs, pelagic marine opisthobranch gastropod mollusks.

Fowlerina is a genus of small sea slugs in the family Clionidae. It was described by Paul Pelseneer in 1906.