The Saratoga Springs pupfish is a subspecies of the Amargosa pupfish of the family Cyprinodontidae. The native population is endemic to Saratoga Springs, a small wetland in Death Valley National Park in the United States.
Ponds at Saratoga Springs
Cyprinodon nevadensis is a species of pupfish in the genus Cyprinodon. The species is also known as the Amargosa pupfish, but that name may also refer to one subspecies, Cyprinodon nevadensis amargosae. All six subspecies are or were endemic to very isolated locations in the Mojave Desert of California and Nevada.
Cyprinodon nevadensis
Likely subspp. amargosae: taken May 2014 in Amargosa River Canyon, downstream from Tecopa Triangle and upstream from waterfalls above confluence with Willow Creek. The second fish from the left in the photograph is male, as indicated by the blue coloration, shown here particularly in his dorsal stripe
National Park Service interpretive signage at Salt Creek, Death Valley National Park.