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; subclass Actinopterygii, order Gadiformes)

A family of small, somewhat eel-like, marine fish with very long dorsal and anal fins, but lacking pelvic and caudal fins. Many species have the peculiar habit of hiding in the body cavity of sea cucumbers. A fairly common species, Carapus bermudensis, has a semi-transparent body and leaves its host at dusk to feed; when returning it enters the posterior of its host, tail first. There are about 28 species, distributed in tropical and temperate seas.

Subjects: Zoology and Animal Sciences.

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