The tovelusk is a massive Xenotaur tunneler. Tovelusks use a powerful acid to dissolve stone, creating wide tunnels for large numbers of Xenotaur troops to travel through. The tunneling acid can be used in combat and dissolves carbon based life-forms almost instantly. All Xenotaur are immune to the acid.
The tovelusks vary somewhat in detail between indivudals. Most have forward arms with thick fingers for moving acid-resistant detritus from their tunneling path. Multiple legs the size of tree-trunks protrude from the lower sides of the body. Though each may cause the ground to thump, the tovelusk glides smoothly along the ground like a hekaton or other multilegged creature.