Terebra is a genus of small to large-sized predatory sea snails, marine gastropod mollusks in the family Terebridae, the auger snails.
Emarginula is a genus of small keyhole limpets, marine gastropod molluscs in the family Fissurellidae.
Triphoridae is a family of very small sea snails, marine gastropod molluscs in the informal group Ptenoglossa, within the clade Hypsogastropoda. Almost all the species in this family are micromollusks and almost all are left-handed in shell-coiling.
Tornidae is a family of very small and minute sea snails with an operculum, marine gastropod mollusks in the clade Littorinimorpha. This family used to be known as the Vitrinellidae. Iredale has shown that the family Adeorbidae Monterosato, 1884 should be called Tornidae
Chrysallida is a speciose genus of minute sea snails, pyramidellid gastropod mollusks or micromollusks in the family Pyramidellidae within the tribe Chrysallidini.
Natica is a genus of small to medium-sized predatory sea snails, marine gastropods in the family Naticidae, the moon snails. The genus was erected by Giovanni Antonio Scopoli in 1777.
Daphnella is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.
Anachis is a large genus of sea snails in the family Columbellidae, the dove snails.
Sinum is a genus of predatory sea snails, marine gastropod mollusks in the family Naticidae, the moon snails. Most naticids have shells that are globular, but the shell of species in the genus Sinum is flattened to some extent, some being so flattened that they are ear-shaped.
Eucithara is a genus of small to quite large sea snails, marine gastropod mollusks in the family Mangeliidae.
Rissoina is a large genus of minute sea snails, marine gastropod mollusks or micromollusks, in the family Rissoinidae.
Circulus is a genus of very small and minute sea snails with an operculum, marine gastropod mollusks in the family Vitrinellidae.
Cerithiopsis is a genus of very small sea snails, marine gastropod mollusks or micromollusks in the family Cerithiopsidae.
Metaxia is a genus of minute sea snails with right-handed shell-coiling, marine gastropod mollusks or micromollusks in the family Triphoridae, which are mostly left-handed in shell-coiling.
Monophorus is a genus of minute sea snails with left-handed shell-coiling, marine gastropod mollusks or micromollusks in the family Triphoridae.
Inella is a genus of minute sea snails with left-handed shell-coiling, marine gastropod molluscs in the family Triphoridae.
Triphora is a genus of very small sea snails, marine gastropod molluscs in the family Triphoridae. The genus was named by Blainville in 1828, and the type species is Triphora gemmata Blainville, 1828. Like most of the other genera in this family, the shells of species in this genus are extremely high-spired with sculptural decoration, and are sinistral (left-handed) in coiling.
Vitrinella is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Vitrinellidae.
Pseudoliotia is a genus of sea snails, marine gastropod mollusks in the family Vitrinellidae within the superfamily Truncatelloidea.
Lienardia is a genus of sea snails, marine gastropod mollusks in the family Clathurellidae.
