Rediscovery of the Shoshone Pupfish, Cyprinodon nevadensis shoshone (Cyprinodontidae), at Shoshone Springs, Inyo County, California
The Shoshone pupfish, Cyprinodon nevadensis shoshone, has been con- sidered extinct since prior to 1970. The subspecies, however, apparently survived precariously for an extended period in a nearly impenetrable marshy outflow below Shoshone Springs and increased following reestablishment of favorable habitat conditions. Pupfish, found in large numbers throughout the Shoshone Springs system in summer 1986, most closely resembled C. n. shoshone. In passing through a genetic "bottleneck" the modal number of caudal fin-rays shifted from 18 to 16. All other meristic characteristics are essentially unchanged from the original description.
Taylor, Frances R.; Miller, Robert R.; Pedretti, John W.; and Deacon, James E.
"Rediscovery of the Shoshone Pupfish, Cyprinodon nevadensis shoshone (Cyprinodontidae), at Shoshone Springs, Inyo County, California,"
Bulletin of the Southern California Academy of Sciences:
Available at: https://scholar.oxy.edu/scas/vol87/iss2/4