Dutton's river snail

Dutton's river snail also known as the helmet rocksnail, scientific name Lithasia duttoniana, is a species of freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This species is endemic to the United States.

Dutton's river snail
Conservation status
Vulnerable  (IUCN 2.3)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Family:	Pleuroceridae
Genus:	Lithasia
Species:	L. duttoniana
Binomial name
Lithasia duttoniana I. Lea, 1841