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.
Cyprinodon is a genus of pupfishes found in waters that range from fresh to hypersaline. The genus is primarily found in Mexico, the Caribbean Islands and southern United States, but C. variegatus occurs as far north as Massachusetts and along the entire Gulf of Mexico coastline, and C. dearborni and C. variegatus are found in northern South America. Many species have tiny ranges and are highly threatened, in some cases already extinct. Cyprinodon are small; the largest reaches 10 cm (3.9 in) in length and most other species only reach about half that size.
Cyprinodon
Cyprinodon variegatus is the most widespread member of the genus.
Cyprinodon diabolis is very rare; its entire native range is the Devils Hole in Nevada
Cyprinodon desquamator, the only known scale-eating species of pupfish
