Helicinidae is a family of small tropical land snails which have an operculum. They are terrestrial operculate gastropod mollusks in the superfamily Helicinoidea.
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.
Cookeconcha is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Endodontidae.
Assiminea is a genus of minute, salt-tolerant snails with an operculum, aquatic gastropod mollusks, or micromollusks, in the family Assimineidae.
Helicina is a genus of tropical and subtropical land snails with an operculum, terrestrial gastropod mollusks.
Nesopupa is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Nesopupinae of the family Vertiginidae.
Omphalotropis is a genus of minute salt marsh snails with an operculum, terrestrial gastropod mollusks in the subfamily Omphalotropidinae of the family Assimineidae.
Palaina is a genus of minute land snails with opercula, terrestrial gastropod mollusks or micromollusks in the family Diplommatinidae.
Samoana is a genus of tropical, air-breathing, land snails, terrestrial pulmonate gastropod mollusks in the family Partulidae.
Streptostyla is a genus of predatory, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Streptostylinae of the family Spiraxidae.
Trochomorpha is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Trochomorphidae.
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.
Vitrea is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Pristilomatidae.
Amastridae is a taxonomic family of small, air-breathing, land snails, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea.
Catinella is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Succineidae, the amber snails.
Melampus is a genus of small air-breathing salt marsh snails, pulmonate gastropod mollusks in the family Ellobiidae.
Pterocyclos is a genus of tropical land snails in the subfamily Cyclophorinae of the family Cyclophoridae.
Pleuropoma is a genus of land snails with an operculum. It is a genus of terrestrial gastropod mollusks in the subfamily Helicininae of the family Helicinidae.
