Toothbrush Arthrofin

The toothbrush arthrofin split from its ancestor the marine arthrofin. It has moved to Maineiac Polar River where there were currently no scavenger or detritivores. There it thrived on eating all the dead and decaying species in the river. It is colored black to blend in with the black decaying soil. It will use its outer mandibles to sweep in food with its brushes and then will rip them up using its smaller pair of toothy mandibles. Like its ancestors its blue blood filled gill are located behind its head. During the summer the toothbrush arthrofin gather in mass to breed. It takes three genders to complete the reproduction process: one sperm, one egg and one hormone cell. They release the eggs into the mud, which then hatch within a few days.