Rostanga is a genus of sea slugs in the family Discodorididae. Some sources, such as The Sea Slug Forum still classify Rostanga in the family Dorididae.
The Limacinidae are a family of small sea snails, pteropods, pelagic marine gastropod mollusks in the clade Thecosomata.
Limacina is a genus of swimming predatory sea snails commonly known as sea butterflies in the family Limacinidae. This genus contains some of the world's most abundant gastropod species.
The Clionidae are a family of sea angels, which are a group of pelagic marine gastropods.
Onchidiidae are a family of small, air-breathing sea slugs. They are shell-less marine pulmonate gastropod molluscs. Onchidiidae is the only family within the superfamily Onchidioidea.
Neritidae, common name the nerites, is a taxonomic family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive operculum. The family Neritidae includes marine genera such as Nerita, marine and freshwater genera such as Neritina, and freshwater and brackish water genera such as Theodoxus.
Limapontiidae is a taxonomic family of small to minute sacoglossan sea slugs. These are marine opisthobranch gastropod mollusks.
Atlanta is a genus of pelagic marine gastropod molluscs in the family Atlantidae. They are sometimes called heteropods.
Littoridina is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Cochliopidae.
Tectonatica is a genus of sea snails, marine gastropod molluscs in the subfamily Naticinae of the family Naticidae, the moon snails.
Bittium is a genus of very small sea snails, marine gastropod molluscs in the family Cerithiidae, the horn snails.
Atagema is a genus of sea slugs, specifically dorid nudibranchs. They are marine gastropod molluscs in the family Discodorididae.
Corambe is a genus of sea slugs, dorid nudibranchs, marine gastropod molluscs in family Corambidae within the superfamily Onchidoridoidea.
Nodilittorina is a genus of small sea snails. marine gastropod mollusks in the family Littorinidae, the winkles or periwinkles.
Haminoea is a genus of medium-sized sea snails or bubble snails, marine opisthobranch gastropod molluscs in the family Haminoeidae, the haminoea bubble snails, part of the clade Cephalaspidea, the headshield slugs and bubble snails.
Modulus is a genus of small sea snails, marine gastropod molluscs in the family Modulidae.
Capulus is a genus of small sea snails, marine gastropod mollusks in the family Capulidae, the cap snails.
Sinum is a genus of predatory sea snails, marine gastropod mollusks in the subfamily Sininae of the family Naticidae, the moon snails.
Tomopleura is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.
Sermyla is a genus of brackish water and freshwater snails with an operculum, an aquatic gastropod mollusks in the subfamily Thiarinae of the family Thiaridae.
