goldfishes
The taxonomic classification of fish that have hard, bony skeletons is teleosts.
Bony fishes.
The skeleton of jawless fish, such as lampreys and hagfish, is primarily made of cartilage rather than bone. Cartilage is a flexible and lightweight tissue that provides structure and support to these fish without the need for heavy bones.
These are generally called "cartilaginous fish." Their skeleton is made of cartilage (that firm but wiggly structure inside your earlobe and nose) instead of bone. Examples include sharks and sting rays.
Insects don't have bones. Insects have an exo-skeleton instead, a hard outer layer that protects and gives them shape. The exo-skeleton is made out of Chitin.
bone
Amphibians are vertebrates, meaning they have a backbone. The skeletal system is mostly made up of bone, but also contains some smaller portions of cartilage. Not all vertebrates have bone skeletons, Chondrichthyes (sharks, rays etc.) have skeletons made up entirely of cartilage. Amphibians however do not.
A bony fish is a fish that has a skeleton made of bone, with less cartilage than a cartilaginous fish. All bony fish can breathe both salt and fresh water. A good example of that is the Pacific salmon.
Osteichthyes are fish that have skeletons made out of bone instead of cartilage. They are usually called "bony fish".
Cartilage
by killing the skeleton mage or soldier or anything that was made of skeleton except for the dog skeleton
A shark's "skeleton" is made of cartilage while human skeleton is made of bone.