Knobby rocksnail

The knobby rocksnail, scientific name Lithasia curta, is a species of medium-sized freshwater snail, an aquatic gilled gastropod mollusk in the family Pleuroceridae. This species is endemic to the United States.

Knobby rocksnail
Conservation status
Data Deficient  (IUCN 2.3)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Family:	Pleuroceridae
Genus:	Lithasia
Species:	L. curta
Binomial name
Lithasia curta (I. Lea, 1868)