Roundworm

A gigantic bug type monster with a large mouth. It has various gray spikes protruding from its body which are thought to be sensory organs. Ancient records offer many information in regards to the roundworm, and one record states that some eggs alone are already 1 meter long. Once they hatch, even the smaller ones are more than 5 meters long, but for whatever environmental reason, they are now found longer and larger than before.