All save for sharks, rays and chimaeras. All other fish are bony fish (Osteichtyes).
Sharks belong to cartilaginous fish. (Chondrichthyes)
Chondrichthyes
Class Chondrichthyes
The only fish that do belong to the group are sharks, rays and chimaeras. All others do not.
The only fish that do belong to the group are sharks, rays and chimaeras. All others do not.
Sharks are a type of cartilaginous fish, that is their skeleton is made of cartilage rather than bone. They belong to the vertebrate subphylum of chondrichthyes.
Sharks are a type of cartilaginous fish, that is their skeleton is made of cartilage rather than bone. They belong to the vertebrate subphylum of chondrichthyes.
Sharks are a type of cartilaginous fish, that is their skeleton is made of cartilage rather than bone. They belong to the vertebrate subphylum of chondrichthyes.
Cartilaginous fish do not have true bones and belong to a the class Chondrichthyes. Sharks, rays and skates are the best-known of this class. True bony fish belong to the class Osteichthyes. One of the major differences is that the members of the class Chondrichthyes lack the ability to pump water past their gill plates, so they must constantly be on the move or in a fast moving current when they are at rest.
No, chondrichthyes are fish that have skeletons made out of cartilage instead of bone.
The common class name for sharks and rays (they both belong to the same class, the Cartilaginous Fish), is Chondrichthyes.
I believe the correct answer is Gnathostomat fish, with paired upper and lower jaw structures; and Agnath fish, which generally have only a toothy suction cup like upper jaw mouth structure.Taken from:http://en.wikipedia.org/wiki/Jaw