White River spinedace

White River spinedace
Conservation status
Critically Endangered (IUCN 2.3)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Cyprinidae
Genus:	Lepidomeda
Species:	L. albivallis
Binomial name
Lepidomeda albivallis R. R. Miller & Carl Hubbs, 1960

The White River spinedace, Lepidomeda albivallis, is a critically endangered cyprinid fish of Nevada, occurring only in the White River in the southeastern part of the state.

This spindace ranges from green to olive above, a brassy silver on the sides, becoming a silvery white underneath. The sides may also have a pattern of faint sooty patches. Dorsal and caudal fins are shades of brown, ranging from olive brown to a pinkish brown; the rays tend to be olive with the membranes between being transparent with a rosy cast. Pectoral fins are yellowish, while the pelvic and anal fins have white rays with red-orange membranes. The dorsal fin has 7 rays, the anal fin has 8 rays, and the pelvic fins usually 7. Size ranges up to 15 cm.

The range is limited to a single cool spring and its overflow area in the upper pluvial White River.

References

• Gimenez Dixon (1996). Lepidomeda albivallis. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 11 May 2006. Listed as Critically Endangered (CR A1bce v2.3)
• "Lepidomeda albivallis". Integrated Taxonomic Information System. http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=163571. Retrieved 18 April 2006. 
• William F. Sigler and John W. Sigler, Fishes of the Great Basin (Reno: University of Nevada Press, 1987), pp. 185–186
• Froese, Rainer, and Daniel Pauly, eds. (2006). "Lepidomeda albivallis" in FishBase. April 2006 version.