The shell is small, rudimentary, auriform (ear-shaped) and is situated far back on the animal. The shell is incapable of containing the body, and is reduced to the function of a shield for the lungs and heart.
The shell is a small, basic structure resembling an ear, located at the rear of the creature. It lacks the ability to house the entire body and instead functions solely as a defensive shield for critical organs such as lungs and heart.