Final answer:
Bony fish have ray-finned caudal fins, which consist of webs of skin over flexible bony rays or spines.
Step-by-step explanation:
Bony fish have ray-finned caudal fins. Ray-finned fish include the majority of living fish species, such as goldfish, tuna, salmon, perch, and cod. Their thin fins consist of webs of skin over flexible bony rays, or spines.