The Neritantan is a species that lives within the hollowed-out roots in the walls of the third layer of the Abyss. Their flat bodies are shaped by their ribs which can deform and elongate as needed by exchanging air with their surroundings.
Their primary diet consists of fruits and because of this, their meat is described as very delicious. To protect themselves from predators, they bunch up together in their nests and inflate their bodies forming a near impregnable wall.
They have a symbiotic relation ship with the trees that they live inside of, because they are able to spread the trees' seeds via feces.
- Chapter 19