Looks like a tile fish to me.
Unicorn Filefish
Yep unicorn filefish, we have been seeing big schools of them in the last few years and the wahoo seem to like them very much
Capt Rick
Living Waters Guide Service
It is definitely a good reminder how vicious wahoo teeth are on flesh. Those are some extremely clean cuts. Never hurts to educate or remind your crew of the dangers of a reckless gaff man.