Superfamily Rissooidea Subfamily Nymphophilinae Rank Species | Genus Pyrgulopsis Higher classification Pyrgulopsis | |
Similar Pyrgulopsis, Gastropods, Molluscs | ||
The transverse grand pyrg, scientific name Pyrgulopsis cruciglans, is a species of very small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States.
References
Transverse grand pyrg Wikipedia(Text) CC BY-SA