This unusual (to me) dead fish on the beach this morning may be a Black Oreo Dory.

large-eyed, silvery, deep-bodied, laterally compressed, and roughly discoid marine fish

Look at those teeth! This fish is all head and no body.

Closeup of fish head with lots of teeth.
Large fish head with an almost non-existent body.
Large fish head with an almost non-existent body. View from a little further away.