Neritoidea is a taxonomic superfamily of mostly sea snails, nerites and their allies, marine gastropod mollusks in the order Cycloneritida.
Pupillidae is a family of mostly minute, air-breathing, land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the superfamily Pupilloidea.
Triviidae is a taxonomic family of small sea snails, marine gastropod molluscs in the superfamily Cypraeoidea of the order Littorinimorpha.
Columbariidae, known as pagoda shells, are a family of large deepwater sea snails, marine gastropod mollusks in the superfamily Turbinelloidea. Some 60 extant species have been described.
Pleuroceridae, common name pleurocerids, is a family of small to medium-sized freshwater snails, aquatic gilled gastropod mollusks in the superfamily Cerithioidea.These snails have an operculum and typically a robust high-spired shell.
Subulininae is a subfamily of small tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Achatinidae.
Pyramidelloidea is a superfamily of mostly very small sea snails, marine gastropod mollusks and micromollusks within the clade Panpulmonata.
Solariellidae is a family of small sea snails, marine gastropod mollusks in the superfamily Trochoidea.
Abyssochrysidae is a family of sea snails, marine gastropod mollusks in the clade Caenogastropoda.
Aillyidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the informal group Sigmurethra.
Coelociontidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Eupulmonata.
Cycloneritida is a order of land snails, freshwater snails, and sea snails.
The Acavoidea are a taxonomic superfamily of air-breathing land snails and slugs, terrestrial pulmonate gastropod mollusks in the informal group Sigmurethra.
The Rhytidoidea are a superfamily of air-breathing land snails and slugs, terrestrial gastropod mollusks in the suborder Helicina.
The Achatinoidea are a superfamily of air-breathing land snails and slugs, terrestrial gastropod mollusks in the informal group Sigmurethra.
The Orthalicoidea are a superfamily of air-breathing land snails, terrestrial gastropod mollusks in the infraorder Orthalicoidei of the suborder Helicina
The Purpurinidae are an extinct family of sea snails, marine gastropod molluscs in the clade Littorinimorpha. According to taxonomy of the Gastropoda by Bouchet & Rocroi (2005) the family Purpurinidae has no subfamilies.
Chromodoris africana, or four-coloured nudibranch, is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.
Prestonella is a genus of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Bothriembryontidae.
Rostellariidae is a family of sea snails, marine gastropod molluscs in the clade Littorinimorpha.
