Dyomcolum

Dyomcolum is a filter feeder from the tropical and subtropical shallow waters world wide. [Creature design by Salty]

Basic Information

Anatomy

Dyomcolum is a filter feeding descendent of Dyomsia. Their anterior appendages have developed into filter feeding arms. Each arm is coated in filter baits which will catch edible substances from the water to then be brought to the mouth. Its internal organ systems have developed distinct sections. Its nervous system has developed a distinct cluster of nerves in the head below the eyes, the start to a more complex brain. It’s digestive system has developed three distinct regions. An initial passage and mouth to take in food, a chamber to break down food, and a long tube to transport the digested food and extract nutrients. The respiration and circulation system is much unchanged, with pumping being assisted by muscle contraction of the hydrostatic legs, and the blood being hemocyanin based. Their exterior has shown the one of the first developments of countershading, with a lighter belly portion and a darker back portion.

Genetics and Reproduction

After Dyomcolum meet to mate, the fertilized eggs are released into the water column to ensure a wide dispersal. They also can release hundreds of eggs at a time, ensuring that at least some will survive.

Growth Rate & Stages

After the fertilized eggs are released into the water column they will hatch into larvae after only a few days. These larva will swim in the planktonic soup for approximately one local month until sinking to the seafloor and transitioning into a juvenile stage. This juvenile stage is a miniature version of the adults, starting at 2 millimeters long. Over the course of 6 months they will grow to their full size of 10 centimeters long. Spawning occurs each spring.

Ecology and Habitats

Dyomcolum will climb to the tops of rocks or flora and extend its feeding arms to feed off the planktonic soup. Once an arm has collected food it will be brought towards the mouth and run between the mouths feeding pegs to comb out any caught material. It lives throughout tropical and subtropical shallows where currents are strong and pelagic microorganisms are abundant.

EXTINCT

Genetic Ancestor(s)