cartilaginous fish

noun

any fish of the class Chondrichthyes, including the sharks, skates, and rays, having a skeleton composed entirely of cartilage

cartilaginous fish

/ kär′tl-ăj′ə-nəs /

Any of various fishes of the class Selachii (or Chondrichthyes), having a skeleton that is made of cartilage. Cartilaginous fishes breathe through gill slits, of which there are usually five, and their toothlike or platelike scales (called denticles) are made of dentine and enamel. Sharks, rays, skates, sawfish, and chimaeras are cartilaginous fishes.
Compare bony fish

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The brachial ossicles represent the reduced and modified radiale and basalia of cartilaginous fish such as the dogfish.

A well-known cartilaginous fish of the ray family, Raia batis.

A name applied to many species of large cartilaginous fish of the family Squalidæ.

A cartilaginous fish allied to the rays, furnished with electrical organs, by means of which it is able to give powerful shocks.

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