Bulla is a genus of medium to large hermaphrodite sea snails, shelled marine opisthobranch gastropod molluscs. These herbivorous snails are in the suborder Cephalaspidea, headshield slugs, and the order Opisthobranchia.
Littorina is a genus of small sea snails, marine gastropod molluscs in the family Littorinidae, the winkles or periwinkles.
Lottia is a genus of sea snails, specifically true limpets, marine gastropod mollusks in the subfamily Lottiinae of the family Lottiidae, one of the families of true limpets.
Trochus is a genus of medium-to large-sized, top-shaped sea snails with an operculum, of the family Trochidae, the top snails.
Siphonaria is a genus of air-breathing sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false limpets.
Gibbula is a genus of small sea snails, marine gastropod molluscs in the subfamily Cantharidinae of the family Trochidae, the top snails.
Acmaea is a genus of sea snails, specifically true limpets, marine gastropod mollusks in the family Acmaeidae, one of the families of true limpets.
Clanculus is a genus of sea snail, marine gastropod molluscs of the family Trochidae, the top shells.
Lyonsiidae is a family of small saltwater clams, marine bivalve molluscs in the order Anomalodesmata.
Spisula is a genus of medium-sized to large marine bivalve mollusks or clams in the subfamily Mactrinae of the family Mactridae, commonly known as surf clams or trough shells.
Natica is a genus of small to medium-sized predatory sea snails, marine gastropods in the subfamily Naticinae of the family Naticidae, the moon snails. The genus was erected by Giovanni Antonio Scopoli in 1777.
Pyrene is a genus of small sea snails, marine gastropod mollusks in the family Columbellidae.
Costoanachis is a genus of sea snails, marine gastropod mollusks in the family Columbellidae, the dove snails.
Minolia is a genus of sea snails, marine gastropod mollusks in the family Solariellidae.
Corbula is a genus of very small saltwater clams, marine bivalve molluscs in the family Corbulidae, the basket clams.
Rissoina is a large genus of minute sea snails, marine gastropod mollusks or micromollusks, in the family Rissoinidae.
Brachidontes is a genus of mussels in the family Mytilidae.
Antalis is a genus of tusk shells, marine scaphopod mollusks.
Solecurtus is a genus of saltwater clam, a marine bivalve molluscs in the family Solecurtidae.
Nuculana is a genus of bivalves in the family Nuculanidae. It includes the following species:
