Mud Worm

From Introduction:

The Mud Worm is a sightless predator of muddy, underground lakes and streams. They will feed off and attack creatures that end up in their muddy domain. They have no special tactics other than to grab a victim with their long, sticky tongue while they slam into them and wrap them up for constriction.

Like a snake, the mud worm will drag the victim to the bottom of the mud pool and slowly pulverize it with its powerful coils where it will them consume the flesh, bone and all.