Arachne

Summary
Arachne is a special evolution of the spider type monsters. It is independent from the Evolution Tree. The Arachne is a medium sized spider monster that has the upper body of a human attached to the head of the spider body which acts as the lower body of the monster. The Arachne can see with all 10 of its eyes (two human eyes and 8 spider eyes) and can use the human body's arms for increased dexterity. The spider body is the same species as whatever the spider monster was when it evolved into the Arachne.

The evolution conditions are: This transformation is first mentioned in Chapter 23.
 * Owning the "Pride" skill.
 * Being a small size or medium-sized spider.
 * And having more than level 50.