classify the following fishes as cartilage and bony.
i) sting ray
ii) scoliodon (dog fish)
iii) labeo rohita (Rohu)
iv) caulephyryne jordani (angler fish)
Endoskeleton of fishes are made up of cartilage and bone; classify the following fishes as cartilaginous or bony: Torpedo, Sting ray, Dog fish, Rohu, Angler fish, Exocoetus. [3MARKS]