Insectomimuses are arthropod-like creatures from the planet Ageriul. There are many diverse types, but they are nowhere near as diverse as Terran arthropods, due to the fact that these creatures never evolved flight
Insectomimuses have six limbs and a tail that moves in the same manner as a cetacean's. In many clades, this is modified into a leg. They have a chitin exoskeleton coated with keratin, giving them relatively light and easy-to-repair skeletons. The two major clades have different ways of growing.
Types of InsectomimusEdit
The hectopedes are a type of insectomimus that are adapted to walking along the floor of their biome, in both the oceans and on land. They have seven limbs, one derived from their tail, and their jaw contains multiple moving pieces to let the mouthparts extend and grab food. These are the most numerous insectomimuses, due to having control over the land in two groups. These grow by shedding, with less important areas breaking in a zigzag fashion and the new exoskeleton extending and hardening beneath it. This repeats throughout the shedding process, until the hectopod is freed. Small type often have book lungs, although many terrestrial group have lungs. These lunged groups are much more active than the book-lunged groups are.
Types include the Sgarpo.
The piscarthropods are the free-swimming relatives of the hectopedes. These grow by absorbing the inner surface of their exoskeletons, and regrowing the outer surface. They have maxillae, and have six fins plus one tail. They fill many planktonic and open ocean niches, as well as the small coastal niches. Most groups have book lungs, like the hectopedes. One particularly interesting group lives in swamps, has a lung, and appears to be the piscarthropod's Tiktaalik.
The apodotheres are a group of serpentine, lunged insectomimids. Known types include swamp-inhabiting species, marine species, desert species, and those that live in their stronghold, the tropical creeg-fields. They shed their exoskeletons from front to back, releasing a segment's skeleton and then letting it grow and harden. The insides of their exoskeletons contain an elastic substance that keeps the shape of the animal until the new exoskeleton has been formed. These are then absorbed and regrown at the next shedding.