There are three general types of fish. Bony fishes (including sea horses, angelfish, and blue tangs, to name a few) are fish with bones for skeletons. As the name suggests, Jawless fishes (lampreys and hagfish) are without jaws. Lastly, Cartilaginous fishes (sharks, rays, and skates) comprise cartilage skeletons rather than bone.
© Roger Horrocks. All Rights Reserved.
