[aninjaatemyshoe]

Any pics?

If it really is a bobbit worm, I'll buy it from you if you're willing to ship it.

I would guess the best bet would be to bait it into a jar at night. Put a piece of shrimp or something in a tall jar in your tank next to where it hides. You could use a red light to observe the bobbit worm without disturbing it. Wait until it goes into the jar and then cap the jar when it goes in.