Skullcrawler

Skullcrawlers are reptilian creatures native to Skull Island and appeared as antagonists of Kong: Skull Island. These creatures got their names from their skull-like heads and their crawling locomotion. Their real names remained unknown since the natives of the island have been growing fear of them. They appeared to have large slender, but muscular dark brown to dark green scaled reptilian bodies with two long forelimbs, as well as long, prehensile, serpentine tails. Their "eye sockets" of their skull-like heads are actually empty fenestrae, their real eyes are set much further back, with the fenestrae perhaps serving to distract enemies from their more vulnerable eyes and acting as heat-seeking sensory pits. Their stomachs don't appear to have a capability to digest bone, as one was seen vomiting bones, including a human skull.