Swamp worms were four-meter long ambush predators from Veron's swamps. Swamp worms were experts at moving through the thick mud of Veron's surface. They would often bury themselves in a few centimeters of mud and wait for a creature to walk by. Once the vibrations reached the swamp worm's soft skin, it sprang to life, attempting to kill with the stinger on the end of its tail.
Swamp worms were dangerous simply because they were usually not noticed until it was too late. They were found in the swamp-like regions of the forest floor. Their appetites weren't large, but they were willing to die in defense of their territory.