Fish usually have fins that are?

Fish usually have fins that are ray-finned. Ray-finned fins are supported by bony rays, which are thin, segmented bones that radiate from the base of the fin. The rays are covered in skin, and they can be flexible or stiff. Ray-finned fins are found in most bony fish, including the vast majority of teleosts. Lobe-finned fins, on the other hand, are supported by a fleshy lobe of tissue that contains bones. Lobe-finned fins are found in a few species of fish, including the coelacanth and the lungfish.