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| Ash Meadows, Amargosa Valley |
My first introduction to desert pupfish was in the early 1970s when I wandered across the saltflats from Badwater, Death Valley, following a dry salt stream, when I got to the other side of the saltflats, beneath Telescope Peak, there was a nascent aster-choked stream, Salt Creek, with tiny minnow-like fish. But some were as blue as peacock feathers, they were busy attacking my toes. So I had to know what they were.
For years, I thought there was only one species of pupfish. Cyprinodon salinus. Ya seen one, ya seen 'em all. Was I ever wrong. There are actually two subspecies in Death Valley, once the pluvial bed of Lake Manly, Cyprinodon salinus salinus, and the northern subspecies, Cyprinodon salinus milleri.
For years, I thought there was only one species of pupfish. Cyprinodon salinus. Ya seen one, ya seen 'em all. Was I ever wrong. There are actually two subspecies in Death Valley, once the pluvial bed of Lake Manly, Cyprinodon salinus salinus, and the northern subspecies, Cyprinodon salinus milleri.
The Mojave Desert (SoCal & SW NV) is home to at least five species of pupfish, maybe more: Death Valley pupfish, Cyprinodon salinus, Cyprinodon nevadensis, Armagosa pupfish, Devil's Hole pupfish Cyprinodon diabolis. Owens pupfish, Cyprinodon radiosus, and on the other side of the Sierras, Desert pupfish (Cyprinodon macularis).
You're probably wondering, what the heck is a pupfish? A pupfish is a relic species from another epoch, left over from the Pleistocene era when the greater American Southwest was lush, and vast lakes and wetlands dominated the landscape. When the waters began to recede, leaving behind what we now call the Mojave desert, the pupfish survived by retreating into fossil water seeps and springs, many of which are saline hot springs.
You're probably wondering, what the heck is a pupfish? A pupfish is a relic species from another epoch, left over from the Pleistocene era when the greater American Southwest was lush, and vast lakes and wetlands dominated the landscape. When the waters began to recede, leaving behind what we now call the Mojave desert, the pupfish survived by retreating into fossil water seeps and springs, many of which are saline hot springs.

