Rotundaria couchiana

Rio Grande monkeyface Quadrula couchiana
Conservation status
Critically Endangered  (IUCN 2.3)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Unionoida
Family:	Unionidae
Genus:	Quadrula
Species:	Q. couchiana
Binomial name
Quadrula couchiana I. Lea, 1860

The Rio Grande monkeyface (Quadrula couchiana) is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.

This species is endemic to the United States.

See also

• Rio Grande
• List of non-marine molluscs of the United States
• Quadrula

References

• Bogan, A.E. 1996. Quadrula couchiana. 2006 IUCN Red List of Threatened Species. Downloaded on 7 August 2007.
• Turgeon, D. D., A. E. Bogan, E. V. Coan, W. K. Emerson, W. G. Lyons, W. Pratt, et al. 1988. [1]. Downloaded on 9 March 2008.