The Aegidae are a family of isopod crustaceans.

The adults are temporary parasites of fish, feeding on their hosts' blood before dropping off to digest the meal.

[1] They differ from members of the family Cirolanidae in having only three pairs of hook-like pereiopods, whereas in Cirolanidae all seven pairs of pereiopods are hooked.

[2] The family was first described by Adam White in 1850.

This isopod-related article is a stub.