The aranea is a spider-like magical beast that lives in temperate forests or jungles. Its natural form is that of a pale spider of monstrous size, with two small humanlike arms below its mandibles.
It has the ability to change its shape into that of a humanoid, or a spider-humanoid hybrid. It has the poison and webspinning ability of a spider, as well as the ability to cast spells like a sorcerer.
Aranea worship the spider goddess Lolth.