pupfish

(pup′fis̸h′)

☆

any of several small, nearly extinct killifishes (genus Cyprinodon) found in desert springs of W North America

See pupfish in American Heritage Dictionary 4

noun pl. pupfish pupfish or pup·fish·es

Any of various small killfishes of the genus Cyprinodon, inhabiting desert springs and streams of Mexico and the southwest United States.

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