Motilia is a kingdom of Ilian life that includes all plants and animals. All of the animals that didn't descend from red plants fall under the category "plicozoa." They are named as such because they begin life as a sheet of cells, which then folds into a tube to create a gut. Plicozoans can get pretty creative with this tube, folding and looping it further to make rings and other formations.Motilia
Fringe worms – Fringe worms are versatile. Sessile filter feeders are ubiquitous in Ilion’s waterways, reefs, and other shallow waters. Chemosynthetic variants inhabit the deep-sea vents, while free-swimming worms occupy just about any niche a worm can take.
Annulids – Annulids possess a ringed gut. The mouth connects to the anus during embryonic development and remains that way throughout life. This limits annulids to a filter feeding lifestyle, where they can either form coral-like colonies or float freely as medusas. However, a group of predatory annulids have adapted venomous tentacles to take advantage of more substantial prey.
Axelids – Like annulids, they have a ringed gut, but the inside of the ring is filled in. Two muscular gyroscopic organs protrude from either side to balance the creature while it rolls like a wheel. Enzyme-secreting serrations allow the organism to eat solid foods, particularly plants and other sessile organisms.
Arcs – Arcs spend most of their time planted on the sea floor, waiting for prey to draw near. When something hits a tentacle, the animal arches its back, tentacles inward, trapping the victim. The arc can them swallow its food immediately or wait for the venom to partially digest it.
Vulcanoids – This is a classic case of convergent evolution. The ringed gut evolved once again, but this time the organs develop on the outside. Food is procured on the inside of the ring, sometimes through filtering seawater, and other times by trapping prey. Some have even adapted the space as a fully functional stomach.
Monodonts – With a couple exceptions, monodonts develop so that the mouth and anus open on the same side. To prevent contamination, a hollow tooth extends from the mouth. This adaptation led to a predominantly liquivorous lifestyle.
Pinhole fish and red plants – On first glance, the fish are indistinguishable from primitive red plant larvae. They are named for the line of pinhole eyes that developed from the vestibular system. The major point of divergence between red plants and their cousins is the diploid form. In red plants, it is photosynthetic and asymmetric, while in the sister clade the diploid form looks very much like the haploid.
Zoom in: Red plants
Zoom in: Monodonts