English: Cartilaginous fishes.
Clades:
Hemichordata;
Deuterostomia;
Animals.
ZoologyChondrichthyes are cartolagenous fish. They are jawed fish, with paired fins, paired nares, scales, two-chambered hearts, skeletons made of cartilage rather than bone. Cartilagenous fish eg sharks, rays, and skates have cartilage skeletons instead of bone.
Orders1
Holocephali: Chimaeras
2
Batoidea: Ray fish
3
Selachimorpha: Sharks.