see text The Entoniscidae are a family of marine isopod crustaceans in the suborder Cymothoida.

[2] Members of this family are parasites of brachyuran and anomuran crabs, living in their hosts' haemocoel.

A small chitinised hole develops through the host's exoskeleton through which the isopod can communicate with the environment.

The female isopod bears little resemblance to any free-living isopod, but the morphology of the larvae show their taxonomic affiliations.

This isopod-related article is a stub.