Limusa

Limusa are a phylum under Serpera and are distinguished by their ability to generate a special ink-like substance called extaca, similar to that of squids, and have special cells and often organs dedicated to the task of generating it. Extaca is used for various purposes, varying between species and instance, those including self-defense, trapping prey, and locomotion. They are named after the Latin word for slime or mud, limusus.

Classes under Limusa:

Denstima