What is a annelids body covering?

The body covering of an annelid is called the cuticle. The cuticle is a non-cellular, secreted layer that covers the epidermis of the worm. It is composed of a protein called collagen, which is arranged in a matrix of chitin. The cuticle provides protection for the worm, and it also helps to maintain the worm's shape and to regulate the movement of water and solutes. In some annelids, the cuticle is also used for locomotion. For example, earthworms use their cuticle to grip the soil and move forward.