Corridon

Another critter for world-building purposes! The corridon is a large underground domestic animal. Food being scarce in the caves, the cheap and easy to maintain corridon is a good source of meat. The largest specimens can also be used as mounts (if you're not in a hurry).
They weren't supposed to look like they have some sort of shell, more like super thick and dry skin that regularly falls off, but I guess the shell look is fine for now, I'm a bit tired.