this is a general idea of a Sharkgi's skeleton. the mouth defies all logic though on this one and seems to continue to have a void pouch that exists without a physical pouch. he can still have things put in his mouth. (essentially like that brook guy from one piece who can eat but has no intestines)
THIS IS MY PROPERTY AND THE PROPERTY OF MY FRIENDS. IF YOU DARE CLAIM THIS AS YOUR WORK AND I CATCH THAT SHIT YOUR ASS WILL BE BLOWN TO OBLIVION FAST.