Fan Casting Spider Monster in Blood-C (Season 3)

An old one that resembles a mixture of a spider with a crustacean shell like armor with purple skin and a large frog-like mouth with a series of big teeth and long white tongue. It has six gold eyes that can rotate 360°, and twenty legs (in total) each with sharp ends. It is capable of eating and disemboweling people, and easily impales them via its legs. It can move extremely fast and is very deadly, Its tongue resembles that of a chameleon in that it is fully retractable and can use it to catch its prey. It kills everybody on Saya's school except for Saya, Itsuki and Tokizane.