Pulmonata or pulmonates, is an informal group of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includes many land and freshwater families, and several marine families.
Stylommatophora is an order of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This taxon includes most land snails and slugs. Stylommatophorans lack an operculum, but some close their shell apertures with temporary "operculum" (epiphragm) made of calcified mucus. They have two pairs of retractile tentacles, the upper pair of which bears eyes on the tentacle tips. All stylommatophorans are hermaphrodites.
Neritoidea is a taxonomic superfamily of mostly sea snails, nerites and their allies, marine gastropod mollusks in the order Cycloneritida.
Vertiginidae, common name the whorl snails, is a family of minute, air-breathing land snails, terrestrial pulmonate gastropod molluscs or micromollusks in the superfamily Pupilloidea.
Pupillidae is a family of mostly minute, air-breathing, land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the superfamily Pupilloidea.
Vallonia is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Valloniidae.
Valloniidae is a taxonomic family of small and minute, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea.
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
Enidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks.
Orculidae is a family of mostly minute, air-breathing, land snails; terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea.
Sphyradium is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Orculidae within the superfamily Pupilloidea.
Eucyclidae is a family of gastropods in the superfamily Seguenzioidea.
Pupinidae is a taxonomic family of land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.
Strobilopsidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea.
Orthurethra is a clade of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora.
Plectopylidae is a taxonomic family of large air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Plectopyloidea.
The subfamily Emarginulinae, common name keyhole limpets and slit limpets, is a taxonomic subfamily of limpet-like sea snails, marine gastropod molluscs in the family Fissurellidae, the keyhole limpets and slit limpets.
Gastrocoptidae is a family of minute, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the superfamily Pupilloidea.
The Pupilloideiis an taxonomic infraorder of air-breathing land snails, semislugs and slugs, terrestrial pulmonate gastropod molluscs in the suborder Helicina.
Fauxulidae is a family of gastropods belonging to the superfamily Pupilloidea of the order Stylommatophora.
