Gyrocotylidea is an order of Cestoda (tapeworms).
[1] Members of this order are parasites of vertebrates, living in the coelom (the body cavity).
[2] Gyrocotylidea are a subspecies of the tapeworm that mainly parasitisises fishes and turtles.
They do not have a gut, thus being classified with cestodes.
[3] This Cestoda- (or tapeworm-) related article is a stub.