The snail is a shelled gastropod that belongs to Mollusca phylum. Shell is a rounded structure present on the back of the snail. It is an exoskeleton of the snail. It has a thick structure called as the foot. It moves by gliding along on the muscular foot. The foot is covered with the epithelium cilia. Successive waves of muscular contraction that travels down the ventral of the foot help snail in moving.