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EveryFish

Ray-finned fish

Fish whose fins are webs of skin held up by thin bony rays, the group that includes about 99 per cent of fish species.

Also: Actinopterygii

Ray-finned fish have fins made of skin stretched over thin bony or horny rays, moved by muscles inside the body wall rather than in the fin itself. They are by far the largest group of fish. A few older lineages survive, such as bichirs, sturgeons, paddlefish, gars and the bowfin, but almost all others are teleosts. Carps, catfish, salmon, herrings, cod, tuna, perches, cichlids, eels, flatfish and seahorses are all ray-finned fish.

See also

TeleostLobe-finned fishFin rays and spines

Find fish that mention Ray-finned fish

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