>>56051953Straight from Bulbapedia:
Sandaconda is a tan serpent Pokémon with a black and brown pattern all over its body, resembling cracked earth. Around its neck is a dark greenish brown ring, which is its neck pouch. Its long body is coiled in a spiral shape. It has lime green eyes with red bags underneath them and a snout with two prominent nostrils and two fangs.
Sandaconda uses its inflated sand pouch to protect its head from harm. The pouch can store up to 220 pounds (100 kilograms) of sand, and is very elastic and thick to the point where a Durant's pincers cannot harm it. Sandaconda can contract its body to spray the sand stored in the pouch through its nose with tremendous force, and its unique method of coiling allows it to blast its sand more efficiently. Some of the sand is combined with Sandaconda's own saliva to form sharp pieces of gravel, making it so dangerous that just coming in contact with it will cause lacerations. While Sandaconda may act tough and confident, it will become timid and cowardly the moment it runs out of sand.[1] Sandaconda is known to eat Durant eggs.