User blog comment:12th Supernova/Chapter 824: You're playing with the big boys now/@comment-12333373-20160421125717/@comment-10870881-20160421135832

He's lying at the bottom of the sea, not moving at all, doesn't seem concerned about dying and really just seems kinda bored, his mouth was hidden before now and looks very much like the fishman mouths we've already seen, and judging by his reaction this has happened enough times before that he thinks someone will come by and pull him out.

If he's not a fishman, I'll eat Luffy's chef hat.