Helix is a genus of large, air-breathing land snails native to Europe and the Mediterranean region. They are the type genus of the family Helicidae, and are among the first animal genera described by Carl Linnaeus. Members of the genus first appeared during the Oligocene. Like most land snails, Helix species are hermaphroditic, and like other helicids, a courting pair will impale each other with hormone-rich love darts prior to exchanging sperm. Well-known species include Helix pomatia and Helix lucorum. Cornu aspersum – another well-known helicid – was originally described as a member of Helix, but the prevailing classification places it as the sole member of the sister genus Cornu.
Bulimulus is a genus of small to medium-sized tropical or sub-tropical, air-breathing land snails, pulmonate gastropod mollusks in the subfamily Bulimulinae within the family Bulimulidae.
Caseolus is a genus of land snails in the family Geomitridae.
Drymaeus is a large genus of medium-sized air-breathing, tropical land snails, terrestrial pulmonate gastropod molluscs in the subfamily Peltellinae of the family Bulimulidae.
Hemicycla is a genus of medium-sized air-breathing land snails, terrestrial pulmonate gastropods in the family Helicidae, the typical snails.
Leiostyla is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Lauriidae.
Leptaxis caldeirarum is a species of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Helicidae, the typical snails.
Leptaxis vetusa is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicidae, the typical snails.
Napaeus is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Eninae of the family Enidae.
Truncatellina is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Truncatellinidae.
Euglandina is a genus of predatory medium- to large-sized, air-breathing, land snails, terrestrial pulmonate gastropod mollusks in the family Spiraxidae.
Corona is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Orthalicidae.
Clithon is a genus of freshwater snails or brackish snails that have an operculum, aquatic gastropod molluscs in the family Neritidae, the nerites.
Melampus is a genus of small air-breathing salt marsh snails, pulmonate gastropod mollusks in the family Ellobiidae.
Trachia is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Camaenidae. These snails are found from Western Ghats of India, Sri Lanka, Sabah and Singapore.
