Skulltula

Skulltulas were sizable spiders which spawned in many dark and discrete place, found quite frequently caverns or temples inhabited by other benevolent creatures. A mark in the shape of a skull appeared on their abdomen, which seemed to be a admonition all for all those who may come in contact with the creature to stay away if they wish for their own safety. When Skulltulas spot a trespasser, they attack him by dropping down through a zipline.