pupfish

A common term for killifishes in the genus Cyprinodon; also very loosely (albeit, infrequently) applied to several obscure related genera such as Cualac and Megupsilon.
Found on http://www.encyclo.co.uk/visitor-contributions.php

pupfish

(from the article `Death Valley`) ...being a particularly well-known resident. Lizards, snakes (including rattlesnakes such as sidewinders), and scorpions are common. Even native fish ... North American killifishes, sometimes called pupfishes (Cyprinodon), inhabit the California coastal waters and the perimeters of certain western salt ...
Found on http://www.britannica.com/eb/a-z/p/133

Pupfish

Cualac Cubanichthys Cyprinodon Floridichthys Garmanella Jordanella Megupsilon The common name is said to derive from the mating habits of the males, whose activities vaguely resemble puppies at play. In spite of their name, the cyprinodonts are not closely related to the Cyprinidae, or carp family. They were formerly considered near allies of the
Found on http://en.wikipedia.org/wiki/Pupfish
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