Volutoidea is a taxonomic superfamily of predatory sea snails, marine gastropod mollusks in the clade Neogastropoda.
Littorinimorpha is a large order of snails, gastropods, consisting primarily of sea snails, but also including some freshwater snails and land snails.
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.
The Stromboidea, originally named the Strombacea by Rafinesque in 1815, is a superfamily of medium-sized to very large sea snails in the clade Littorinimorpha.
The Cocculinoidea is a superfamily of deepwater limpets, the only superfamily in the order Cocculinida, one of the main orders of gastropods according to the taxonomy as set up by. The clade Cocciliniformia used to be designated as a superorder.
Buccinoidea is a taxonomic superfamily of very small to large predatory sea snails, marine gastropod mollusks.
Bithyniidae is a family of small freshwater snails with an operculum, aquatic gastropod molluscs in the clade Littorinimorpha.
Potamopyrgus is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Tateidae.
Rissoidae is a large family of sea snails. Members of the Rissoidae are very small in size and possess an operculum.
Cochliopidae is a family of small freshwater snails with gills and an operculum, aquatic gastropod mollusks.
Pomatiopsidae is a family of small, mainly freshwater snails, that have gills and an operculum, aquatic gastropod mollusks in the superfamily Truncatelloidea.
Lithoglyphidae is a family of small freshwater snails with gills and an operculum, aquatic gastropod mollusks.
Bellerophontoidea, common name "bellerophonts", is a superfamily of extinct planospirally-coiled globose molluscs. This superfamily is generally included within the Gastropoda, but may instead be a group of monoplacophorans. The taxon first appeared late in the Cambrian and continued until late in the Triassic.
Stenothyridae is a family of small freshwater snails, snails with gills and an operculum, aquatic gastropod molluscs in the superfamily Truncatelloidea.
Rissoinidae is a large family of sea snails. Members of the Rissoinidae have an operculum and are very small in size. Several genera that were previously part of Rissoinidae have been assigned to the Zebinidae family.
Truncatelloidea is a superfamily of snails, gastropod mollusks in the clade Caenogastropoda.
Gabbia is a genus of a freshwater snails with an operculum, aquatic prosobranch gastropod mollusks in the family Bithyniidae.
Tateidae is a family of very small and minute aquatic snails with an operculum, gastropod molluscs in the superfamily Truncatelloidea.
Clenchiellidae is a family of sea snails, marine gastropod molluscs in the superfamily Truncatelloidea.
