pupfish

noun

pupfish

noun

Etymology From pup + fish, said to derive from the mating habits of the males, whose activities vaguely resemble puppies at play.

1

Any of a group of small killifish belonging to ten genera of the family Cyprinodontidae.

Derived terms
Devils Hole pupfish

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.