View Elasmobranchii -Sharks, Skates, and Rays

Sharks, rays, and skates form a group of boneless fishes called the elasmobranchs (Elasmobranchii). There are about 800 species of elasmobranchs, of which over half (between 450 and 500 species) belong to the Batoidea, a group that includes skates and rays. The rest of the elasmobranch species belong to the Superorder Selachimorpha, the sharks.