Slamworm

Slamworm is an alien form of the Nemetrix used by Khyber's Pet. It is a predator of Talpaedans (Armodrillo's species) from the planet Terraexcava.

Appearance
It is a giant worm with sharp teeth and a wide beak-like mouth. He possesses a black and orange hide and white underbelly with grey spikes running down his back.

Powers and Abilities
It has shown the ability to dig holes underground like Talpaedans and sprout anywhere it wants, at a fast rate.

It has also shown that he has the ability to spit multiple balls of acid from his mouth.

Weaknesses
As shown in It Was Them, it is vulnerable to sharp things that are inserted into its mouth.

Ben 10 Omniverse

 * Slamworm first appeared in It Was Them. He attacked Ben outside of the Burger Shack. His tunnelling ability confused Diamondhead, and he managed to get Diamondhead in a rather helpless position. Diamondhead managed to escape and trap the giant alien. He fled as soon as Khyber called him.
 * Slamworm appeared again in Predators and Prey: Part 1 to defeat Armodrillo.

Ben 10: Omniverse

 * It Was Them (first appearance)
 * Predators and Prey: Part 1 

Trivia

 * He is the predatory species of Armodrillo.