Zygoa

Introduction
The Zygoa are a class of arthopodic species that naturally inhabit Xyrillia. They are the most complex form of Arthropods known across the dimensions; adapted to larger and stronger forms. They are believed to have evolved from crabs and prefer humid climate, mostly inhabiting swamps and coasts.

Structure
The body of a Zygoa is composed of many segments, which are grouped in three major segments: head, thorax and abdomen. Unlike their crustacean cousins, their head is seperated from their thorax, making it freely movable. In order to overcome the problematics of molding their entire body at once, their exoskeleton split up in a total of up to 38 chitin plates. They are connected threw thin skin that is extremly flexible. When ever they grow, their chitinplates spall off. This allows them to grow to much larger sizes without the problem of molding. Yet many species fuse certain bodyparts together to develop certain forms.

Their head is usually rather small compared to the rest of their body and relativly flexible. It is crowned by 1-3 pairs of antennas which usually function as a sensory organs to feel and in most cases taste their enviroment. Their mouth concists of the Cobinchia, a couple of claw like jaws that can specialise in many forms. The Zygoa salvia is usually acidic, predigesting food while chewing it.

Their thorax develops between 4 and 12 segments, each bearing a pair of legs. Each of these legs can either specialise as pereiopods (walking legs) and maxillipeds (feeding legs), however their frontlengs usually consist of larger legs, enforced with a strong chitinshell. Those frontlegs often develop claws or sharp edges in order to hold and shred food.