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 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.
Oʻahu tree snails, genus Achatinella, form a large genus of colorful, tropical, tree-living, air-breathing, land snails, arboreal pulmonate gastropod mollusks in the family Achatinellidae.
Placostylus, or flax snails, are a genus of very large, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Bothriembryontidae.
Succinea, common name the amber snails, is a large genus of small, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Succineidae.
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.
Physella is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae.
Assiminea is a genus of minute, salt-tolerant snails with an operculum, aquatic gastropod mollusks, or micromollusks, in the family Assimineidae.
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.
Truncatella is a genus of very small land snails with an operculum, terrestrial gastropod mollusks in the family Truncatellidae. These small and minute snails live on land, very close to seawater. They walk with a strange looping action, and the adults have truncated shells. Many of the species are small enough to be considered micromollusks.
Euglandina is a genus of predatory medium- to large-sized, air-breathing, land snails, terrestrial pulmonate gastropod mollusks in the family Spiraxidae.
Scolodontidae is a taxonomic family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Scolodontoidea
Clausilia is a European genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Clausiliidae, the door snails, all of which have a clausilium.
Sultana is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Orthalicidae.
Rhachistia is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Cerastidae.
Cassidula is a genus of small air-breathing salt marsh snails, pulmonate gastropod mollusks in the family Ellobiidae.
Carelia is a genus of small, air-breathing, land snails, terrestrial pulmonate gastropod mollusks in the family Amastridae and superfamily Cochlicopoidea. Snails in this genus are endemic to the Hawaiian Islands.
Diaphera cumingiana is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Diapheridae.
Diaphera is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Diapheridae.
Thaumastus is a genus of tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Megaspiridae.
Euplecta is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Ariophantidae.
