Yeah, that's really close, but Beluga whales aren't covered in fur. Good find on the skull, though. It looks to be an exact match.
the "fur" is seaweed I guess
> Beluga whales aren't covered in fur
Rotten flesh... muscles, skin, fat... often looks "furry," as the strands that make it all up separate.
There is no fur on that animal, only strings of decaying meat. I looked closely, and even pulled the image into photoshop to blow it up, and couldn't find any trace of hair. Just rotting meat.