Poligradium dureali
In the waters of Zone 26 resides a simple hardy muscal known as Poligradium dureali. They are not picky eaters, and will consume any microscopic biological materials with their jawless mouths, including microscopic fragments of Alcyoneus calidi colonies and any proteins or particles of decaying plant matter that float through the water that they are present in.
Poligradium dureali has a thin skin membrane that gives it a translucent appearance. It paddles its tiny body through the water by quickly thrusting with five pairs of tiny fins, and navigates through touch and with aid from two sets of primitive eyes.
It takes around one week for Poligradium dureali to grow to its largest body capacity, a humongously massive size of 2.5 millimeters in length. While doing so, Poligradium will gradually produce eggs in its abdomen. They do not excrete anything they eat and instead vomit up their digested remains into the surrounding water. Poligradium dureali reproduces asexually, and releases some 100-200 tiny fertilized eggs in a marvelous display that involves the microorganism literally bursting itself open in the abdomen and transforming into specks of nutritious dust.