FWS Focus


Clover Valley speckled dace is a small freshwater fish found in cold rivers and springs, and thermal springs. It is currently found in only three springs and outflows in the Clover Valley in Elko County, Nevada. Little is known about the species before European settlement of the area. Clover Valley speckled dace were listed as endangered in 1989. Its limited distribution, modification of habitat for irrigation and competition and predation by non-native fishes are among the primary threats to this small fish. 

Scientific Name

Rhinichthys osculus oligoporus
Common Name
Clover Valley Speckled Dace
FWS Category

Location in Taxonomic Tree

Identification Numbers



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