Asconiscus is a genus in the Asconiscidaefamily of marine isopodcrustaceans in the suborder Cymothoida, containing a single genus and a single species,[1]Asconiscus simplex. The original description of the family was made by Bonnier in 1900.[2]A. simplex is a parasite of the shrimp-like crustacean, Boreomysis arctica.[3]