Viviparid Snails

  • 19 species in North America
Phylum: Mollusca
Class: Gastropoda
Order: Prosobranchia (Subclass)
Family: Viviparidae

Identification Tips:

• Relatively large (20-60 mm)
• Operculum marked with off-centre concentric ovals
• Whorls of the shell bulge distinctly

Life History:

• Most common on sandy bottoms
• Feed on organic detritus

Very Sensitive Somewhat Sensitive Facultative Somewhat Tolerant Very Tolerant

Primary Information Source:
Voshell, J. Reese. 2002. A Guide to Common Freshwater Invertebrates of North America. McDonald and Woodward Publishing Company. Blacksburg, Virginia.