that's one ugly deep-see baboon! There's something fishy with this...fish. I mean it, by the looks, only deep see creatures would be equipped with such jaws to catch and trap the prey but not to chew the poor thing. Yet, those teeth distinctly look like mamalian (primate) rather than anything else, designed to bite but also to chew.
Besides, the spiny dorsal it's very similar to a triggerfish, used for hooking into "bed", among rocks and for defence, apparently. Yet again, in complete darkness this trigger dorsal would be relatively useless, stealth and "night vision" is the name of the game down there, situation when such feature would be adapted or would dissapear altogether, with evolution, for a deepsea environment.
That's not to say that i might be completely wrong and this is just another amazing new creature that we cant believe our eyes - just like in the old joke when an eskimo saw for the first time at a zoo a giraffe and said "this does NOT exist"!
My final opinion, it's a monkey skull, probably baboon, eyes included, nicely wrapped up with a triggerfish skin. If you look close you might still see the monkey's nose!
serge