The Railroad Valley springfish Crenichthys nevadae, is a rare goodeid fish of the Great Basin of western North America, occurring naturally in just seven thermal springs of Railroad Valley in Nye County, Nevada. This springfish is omnivorous, with animal food representing 2/3 or more of its consumption during the summer, primarily consisting of gastropods. Plant consumption is mostly filamentous algae. While intestine length is consistent with an omnivore, Sigler & Sigler suggest that the high water temperatures of the springfish habitat may demand the higher energy available with animal food.