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Acanthopterygiia group of TELEOST fishes having rigid spines supporting the fins. They occur in both the sea (for example, plaice) and fresh water (for example, perch); the majority of saltwater bony fish are included in this group.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005