Marisa cornuarietis

Marisa cornuarietis
Drawing of a live individual of Marisa cornuarietis: the visible soft parts are covered in dark spots. The edge of the round operculum is visible under the shell.
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Architaenioglossa
Family:	Ampullariidae
Genus:	Marisa
Species:	M. cornuarietis
Binomial name
Marisa cornuarietis (Linnaeus, 1758)
Synonyms[2]
Ampullaria (Marisa) cornuarietis (Linnaeus, 1758) (unaccepted combination) Ampullaria chiquitensis d'Orbigny, 1838 Ampullaria cornuarietis (Linnaeus, 1758) (unaccepted combination) Ampullaria knorrii Philippi, 1852 Ampullaria rotula Mousson, 1869 (junior synonym) Ceratodes fasciatus Guilding, 1828 Ceratodes rotula Mousson, 1873 (junior synonym) Helix cornuarietis Linnaeus, 1758 (original combination) Marisa cornuarietis var. swifti Guppy, 1866 (variety) Marisa rotula (Mousson, 1869) (junior synonym) Planorbis contrarius O. F. Müller, 1774 (junior synonym)

Marisa cornuarietis, common name the Colombian ramshorn apple snail, is a species of large freshwater snail with an operculum, an aquatic gastropod mollusc in the family Ampullariidae, the apple snail family.

These snails are popular in aquariums, and are also used in the wild as a biological control agent.