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Ash Meadows Amargosa Pupfish Cyprinodon nevadensis mionectes


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Ash Meadows Amargosa Pupfish
© Hollingsworth/U. S. Fish and Wildlife Service

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Family: Cyprinodontidae, Killifishes view all from this family

Description 1 1/3" (34 mm). Stout and deep-bodied, with arched profile. Female smaller and deeper-bodied than male. Silvery with dusky bands or markings. Dorsal fin far back.

Endangered Status The Ash Meadows Amargosa Pupfish, a subspecies of the Nevada Pupfish, is on the U.S. Endangered Species List. It is classified as endangered throughout its range in Nevada. This pupfish is found only in the Ash Meadows warm springs of the Amargosa Desert, in Nye County, Nevada. The main factor in its decline has been two predators that have been introduced into its pools, a crayfish (species Procambarus clarkii) and the Bullfrog. Its only hope for survival is the removal of these alien species from its environment.

Habitat Warm thermal springs.

Range Ash Meadows, Armagosa Desert, Nye County, Nevada.

Discussion The female lays only one egg at a time, and will do so many times a day.