The superfamily Bopyrina included three families as Dajidae (parasitic in the incubatory chamber or on the dorsal surface of the Mysids and Euphosiids), Bopyridae (in branchial cavity or on the abdominal cavity of the Anomuran and Macrura) and Entoniscidae (in visceral cavity of Brachyura and Anomura) (Hartnoll, 1960).