ag, thanks, but I'll keep my worm with the wicked name of Medusa and you can keep the star wars monster you have. I'd simple try a long pair of tongs or the big, long tweezers and next time you see it, grab it and pull it out.
I wonder if it breaks while pulling it, will it grow back like some other worms do (I seriously doubt it, but it's consideration).
It looks like something from a space alien horror movie. put it and a mantis shrimp together in a small tank and film it. "Bobbit Worm vs Mantis Shrimp, the Movie"... it could out gross Aliens vs Predators!
Good luck my friend.