Fish jaw or pectoral spines

The top one is a dorsal fin from a catfish, but the bootom bone is a snake mandible, likely a common watersnake.

Identification is always fun to figure out.

These are indeed pectoral spines of catfish. If you Google jaw bones vs pectoral spines, there are many noticeable differences :)

Oh, my mistake :p

Thanks for the comment. I actually sent pictures to the museum of osteology and the said the were fish jaw bones.

These are actually the pectoral spines of a catfish. I'm not sure exactly what kind, but they are most likely from a channel catfish.