Mainstream river snail

The mainstream river snail, also known as the onyx rocksnail, scientific name Leptoxis praerosa, is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae. This species is endemic to the United States.

Mainstream river snail
Conservation status
Vulnerable  (IUCN 2.3)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Family:	Pleuroceridae
Genus:	Leptoxis
Species:	L. praerosa
Binomial name
Leptoxis praerosa Say, 1821