Yep. Here's one of Nookie's discoveries from Dragon #46...
Devil Wyrm
This area was used by the complex’s residents as both a recreation facility and a sacrifical altar. The prisoners were led to the floor area and chained there to the ring set in the middle. Drawn by the smell of prey, hideous creatures emerged from the holes and devoured the helpless victims.
If any of the party takes more than one step on the floor, the vibrations of footsteps will summon the Devil Wyrms from their abodes. Simultaneously, the 8 long annelids will squiggle out of the openings and attack all those in the area. Each has 7 hit dice (hit points 40 plus 1-12), armor class 3, and movement 8”. The appearance of the Devil Wyrm is that of a pink, fat worm, 20 feet long and about 1½ feet in diameter. Each segment of the creature is made of a kind of chitinous armor, giving the creature its low armor class. The Wyrm has no head to speak of, but rather has a kind of serrated mouth at either end. Each of the monster’s openings can attack once per melee round, delivering 2-12 points damage. In addition, once every 3 melee rounds, the creatures can spit an acidic venom on a single target up to 30 feet away that will cause 3-18 points damage and paralyze the victim unless he makes his saving throw. A saving throw results in no paralyzation effect and full damage.
Once all of the Wyrms have been slain, their dark dens may be searched Within each lair, the party will find a mound of partially eaten human bodies.
Originally appeared in Dragon Magazine #46 (1981).