Pahranagat roundtail chub
The Pahranagat roundtail chub, or White River chub, is a species of freshwater ray-finned fish belonging to the family Leuciscidae, the daces, chubs, Eurasian minnows and related species. This fish is endemic to the outflows of thermal springs in the Pahranagat Valley, as well as the Pahranagat River itself, although it is now restricted, in the wild, to a single spring within its historic native range.