I certainly believe that it is a fish carcass, probably a fllounder, most likely a starry flounder. 1) Why is it a fish? In all non-bony fish vertebrates, there is an upper jaw (maxilla, generally fused to the skull) and a lower jaw (mandible). But in bony fish, there are two upper jaw bones, the maxilla and the premaxilla and a single lower jaw bone. If you look at the upper jaw, you can see the maxilla (with its ventral end reaching the mandible) and the T-shaped premaxilla [seen better in the lower image] (with teeth. In advanced bony fish, the premaxilla slides down the skull to protrude out as the jaws open). 2) Why is it a flounder? We are looking at the "blind side" of the flounder. There is no eye and the color is very light; you can see from the skin in the upper image that the other side of the flounder is pigmented. 3) Why a starry flounder? First, they are quite common. Second, you can see star-shaped clusters ('plates" =
tubercles) of modified scales on the head and on the dark skin. Are the teeth consistent with this identification? Yes, larger starry flounders often nip off the exposed
siphons of clams; this requires teeth that can cut the tough siphons and these fit that requirement.
Steve