True fish, as distinguished from shellfish.

A term used to separate true fish from shellfish, crayfish, jellyfish, etc.

includes all fish other than crustaceans, echinoderms (sea urchins, sand dollars, etc), molluscs, shellfish and marine mammals.

A fish with fins (in contrast to shellfish).

A fish with fins as opposed to shellfish.

Term refering to fish which have fins, such as trout and salmon