ray-finned fish









ray-finned fish


noun

  1. any of various bony fishes of the subclass Actinopterygii, having strong slender rays, excluding the coelacanth and lungfish.

  1. Any of various bony fishes belonging to the subclass Actinopterygii, having fins supported by thin bony rays. Ray-finned fish evolved in the early Devonian Period and include most species of fish today. Also called actinopterygian Compare lobe-finned fish.
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