Littorinimorpha is a large order of snails, gastropods, consisting primarily of sea snails, but also including some freshwater snails and land snails.
Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod molluscs. Unlike most molluscs, the blood of ram's horn snails contains iron-based hemoglobin instead of copper-based hemocyanin. As a result, planorbids are able to breathe oxygen more efficiently than other molluscs. The presence of hemoglobin gives the body a reddish colour. This is especially apparent in albino animals.
Planorbis is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids. All species in this genus have sinistral or left-coiling shells.
Lymnaeidae, common name the pond snails, is a taxonomic family of small to large air-breathing freshwater snails, aquatic pulmonate gastropod mollusks, that belong to the clade Hygrophila.
Vertigo is a genus of minute, air-breathing land snails, terrestrial pulmonate gastropod molluscs or micromollusks in the family Vertiginidae, the whorl snails.
Pupilla is a genus of minute air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the subfamily Pupillinae of the family Pupillidae.
Oxychilus is a genus of small air-breathing land snails, terrestrial pulmonate gastropods in the subfamily Oxychilinae of the family Oxychilidae, the glass snails.
Bithynia is a genus of small freshwater snails with an operculum, aquatic prosobranch gastropod mollusks in the family Bithyniidae.
Lymnaea is a genus of small to large-sized air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the subfamily Lymnaeinae ( of the family Lymnaeidae, the pond snails.
Viviparus, common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.
Gyraulus is a genus of small, mostly air-breathing, freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails.
Theodoxus is a genus of nerites, small water snails with an operculum, some of which live in freshwater, and some in both freshwater and brackish water, aquatic gastropod mollusks in the family Neritidae, the nerites.
Valvata is a genus of very small freshwater snails with an operculum, aquatic gastropod mollusks in the family Valvatidae, the valve snails.
Galba is a genus of small air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Lymnaeidae, the pond snails.
Enidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks.
Azeca is a European genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Cochlicopidae.
Frederick Baker was an American physician and civic activist in San Diego, California. He was the prime mover in founding the Marine Biological Institution, which became the Scripps Institution of Oceanography. He was also a co-founder of the Zoological Society of San Diego and thus of the San Diego Zoo. He was a naturalist and an amateur malacologist.
Segmentina mica is a species of gastropods belonging to the family Planorbidae.
Laevicaspia is a genus of gastropods belonging to the family Hydrobiidae.
