Sandworms are long, slender and slightly flattened. Two sharp hooks, or jaws, each having up to 10 teeth, deliver a painful bite. ... Sandworms use their parapodium, located along their sides, for swimming and burrowing.

Do sandworms have fangs?

Nereis virens, commonly known as sandworms, have a set of fang-like jaws with remarkable mechanical properties. These worms may be small, but they have a strong jaw for grasping, piercing, and tearing prey.

Why do sandworms have teeth?

They have an array of crystalline teeth which are used primarily for rasping rocks and sand. During his first close encounter with a sandworm in Dune, Paul notes, "Its mouth was some eighty meters in diameter ...