ray-finned fish

[rey-find]

noun

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

ray-finned fish

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.

2. Also called actinopterygian

3. Compare lobe-finned fish