Physella is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae.
Helminthoglypta is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Helminthoglyptinae of the family Xanthonychidae.
Mesodon is a genus of land snails in the family Polygyridae.
Monadenia is a genus of air-breathing land snails in the subfamily Monadeniinae.
Polygyra is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae.
Vespericola is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae.
Polygyridae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.
Euglandina is a genus of predatory medium- to large-sized, air-breathing, land snails, terrestrial pulmonate gastropod mollusks in the family Spiraxidae.
Xolotrema is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae.
Allogona is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae.
Haplotrema is a genus of carnivorous land snails in the family Haplotrematidae. They are widely distributed in North America.
Ancotrema is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Haplotrematidae.
Appalachina is a genus of small, air-breathing, land snails, terrestrial pulmonate gastropod molluscs in the family Polygyridae.
Trilobopsis is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae.
Euchemotrema is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae.
Linisa is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Polygyrinae of the family Polygyridae.
The Helminthoglyptinae are a subfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks within the family Xanthonychidae.
Cryptomastix mullani is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Polygyridae.
Prophysaon, common name taildropper slugs, is a genus of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the family Arionidae, the roundback slugs.
Henry Hemphill (1830–1914) was an American malacologist, a biologist who studies mollusks. In particular he studied land and freshwater mollusca.
