Helicidae is a large, diverse family of western Palaearctic, medium to large-sized, air-breathing land snails, sometimes called the "typical snails." It includes some of the largest European land snails, several species are common in anthropogenic habitats, and some became invasive on other continents. A number of species in this family are valued as food items, including Cornu aspersum the brown or garden snail, and Helix pomatia. The biologies of these two species in particular have been thoroughly studied and documented.
The Aciculidae are a family of minute land snails which have opercula. In other words, Aciculidae are terrestrial operculate gastropods. Even though Aciculidae are land snails, they live in rather wet conditions, among mosses and dead leaves and they have sometimes been described as "winkles come ashore".
Acicula hausdorfi is a species of very small land snail with an operculum. It is a terrestrial gastropod mollusk in the family Aciculidae.
Platyla foliniana is a species of very small land snail in the family Aciculidae.
Platyla is a genus of very small land snails with an operculum, terrestrial gastropod mollusks or micromollusks in the family Aciculidae.
Platyla maasseni is a species of very small land snail with an operculum, a terrestrial gastropod mollusk or micromollusk in the family Aciculidae. This species is endemic to Serbia and Montenegro.
Platyla peloponnesica is a species of very small land snail with an operculum, a terrestrial gastropod mollusk or micromollusk in the family Aciculidae. This species is endemic to Greece.
Renea is a genus of air-breathing land snails with an operculum, terrestrial gastropod mollusks in the family Aciculidae.
Renea gormonti is a species of land snail with an operculum, a terrestrial gastropod mollusk in the family Aciculidae. This species is endemic to France.
Renea moutonii s a species of land snail with an operculum, a terrestrial gastropod mollusk in the family Aciculidae.
Renea paillona is a species of land snail in the family Aciculidae. It is native to France and Italy.
Pagodulina is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Pagodulinidae.
Moitessieriidae is a family of small freshwater snails, aquatic gastropod molluscs in the superfamily Truncatelloidea.
Causa is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Helicidae.
Islamia is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
Agardhiella is a genus of terrestrial gastropods belonging to the family Agardhiellidae.
Metafruticicola is a genus of gastropods belonging to the family Hygromiidae.
Virpazaria is a genus of gastropods belonging to the family Spelaeodiscidae.
