Arcidens wheeleri

Ouachita rock pocketbook
A live individual of Arcidens wheeleri

Critically Imperiled  (NatureServe)
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Unionida
Family: Unionidae
Genus: Arcidens
Species:
A. wheeleri
Binomial name
Arcidens wheeleri
Ortmann & Walker, 1912
Synonyms

Arkansia wheeleri

Arcidens wheeleri is a species of freshwater mussels in the family Unionidae, the river mussels. Its common names are the Ouachita rock pocketbook and Wheeler's pearly mussel. The former monotypic genus of Arkansia was named for the state of Arkansas, where the mussel was first discovered.

This is a federally listed endangered species of the United States.