The gastropods, commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda.
Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are gastropods, i.e. they are sea snails that over evolutionary time have either completely lost their shells, or have seemingly lost their shells due to having a greatly reduced or internal shell. The name "sea slug" is most often applied to nudibranchs, as well as to a paraphyletic set of other marine gastropods without obvious shells.
Cypraeoidea, the cowries and cowry allies, is a superfamily of sea snails, marine gastropods included in the clade Littorinimorpha. This superfamily had been called Cypraeacea and was named by Rafinesque in 1815.
Calliostoma is a genus of small to medium-sized sea snails with gills and an operculum, marine gastropod molluscs within the family Calliostomatidae, the Calliostoma top snails. Previously this genus was placed within the family Trochidae. Calliostoma is the type genus of the family Calliostomatidae.
Odostomia is the most speciose genus of minute sea snails, pyramidellid gastropod mollusks. This genus is placed in the family Pyramidellidae in the subfamily Odostomiinae. There are several hundred species in this diverse genus
Vetigastropoda is a major taxonomic group of sea snails, marine gastropod mollusks that form a very ancient lineage. Taxonomically the Vetigastropoda are sometimes treated as an order, although they are treated as an unranked clade in Bouchet and Rocroi, 2005.
Vanikoroidea is a superfamily of sea snails, marine gastropod molluscs in the clade Littorinimorpha. The superfamily Eulimoidea is a synonym of Vanikoroidea.
Costellariidae sometimes called the "ribbed miters" is a taxonomic family of minute to medium-sized predatory sea snails, marine gastropod mollusks. This family of snails is also sometimes referred to as Vexillum miters. The main family of miter shells however is Mitridae, a closely related group.
Polystira is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids.
Phymorhynchus is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.
Hindsiclava is a genus of sea snails, marine gastropod mollusks in the family Pseudomelatomidae,
Dikoleps is a genus of sea snails, marine gastropod mollusks in the family Skeneidae.
Skeneoides is a genus of sea snails, marine gastropod mollusks in the family Skeneidae.
Capulus ungaricus, common name the bonnet shell, is a species of medium-sized sea snail, a marine gastropod mollusk in the family Capulidae, the cap snails.
Tonna canaliculata is a species of large sea snail, a marine gastropod mollusk in the family Tonnidae, the tun shells.
Cerithiopsis greenii is a species of sea snail, a gastropod in the family Cerithiopsidae, which is known from the Caribbean Sea, Gulf of Mexico, Gulf of Maine, and the northwestern Atlantic Ocean. It was described by C.B. Adams in 1839.
Conasprella jaspidea pealii is a subspecies of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
Clypeastericola is a genus of medium-sized sea snails, marine gastropod mollusks in the family Eulimidae.
Clypeastericola natalensis is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. The species is one of two known species to exist within the genus, Clypeastericola, the other one is known as Clypeastericola clypeastericola.
Melanella angulata is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. The species is one of many species of snails known to exist within the genus, Melanella.
