Biomphalaria is a genus of air-breathing freshwater snails, aquatic pulmonates belonging to the family Planorbidae, the ram's horn snails and their allies.
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.
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.
Aylacostoma chloroticum is a species of freshwater snail, aquatic gastropod mollusc in the family Thiaridae. This species is found in Argentina and Paraguay. It was feared that the species had become extinct in the wild as a consequence of the building of the Yacyretá Dam on the Paraná River, but a single small wild population remains. A captive "safety" population is jointly managed by the National University of Misiones and Bernardino Rivadavia Natural Sciences Museum. Its relatives A. brunneum, A. guaraniticum and A. stigmaticum from the same region had a similar fate, but the first only survives in captivity and the last two are entirely extinct.
Littoridina is a genus of small freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Cochliopidae.
Heleobia is a genus of small freshwater and brackish water snails with a gill and an operculum, aquatic gastropod mollusks in the family Cochliopidae and the superfamily Truncatelloidea.
Chilina iguazuensis is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Chilinidae.
Chilina is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the superfamily Chilinoidea.
Biomphalaria tenagophila is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.
Potamolithus is a genus of small freshwater snails that have an operculum, aquatic gastropod mollusks in the family Tateidae.
Plagiodontes is a recent genus of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropods in the family Odontostomidae.
Epiphragmophora is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Epiphragmophorinae.
Heleobia parchappii is a species of small freshwater snail, an operculate gastropod mollusk in the family Cochliopidae.
