Idolon is a genus of centipede found in the Jungle regions of Skull Island. There are two species identified:
- Idolon illotus - Lives in the jungle canopy and hunted for flizards. Its venom could kill prey within moments of a bite. They could grow to sizes ranging from ten to fourteen inches.
- Idolon venefaucus - Lives in the dense leaves and vines to ambush their prey. Their grey coloring served to camouflage their 20 to 24 inch long bodies from predators and prey. The Skull Island Hornbill was immune to their specific venom.