Marstonia castor

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Marstonia castor
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily: Rissooidea
Family: Hydrobiidae
Subfamily: Nymphophilinae
Genus: Marstonia
Species: M. castor
Binomial name
Marstonia castor
F. G. Thompson, 1977

Pyrgulopsis castor (F. G. Thompson, 1977)

Marstonia castor, common name the beaver pond marstonia, is a species of very small freshwater snail with a gill and an operculum, an aquatic operculate gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States.


  1. ^ Cordeiro, J. & Perez, K. (2012). "Marstonia castor". IUCN Red List of Threatened Species. Version 2014.1. International Union for Conservation of Nature. Retrieved 17 July 2014.