what kind of worm is this??

[larrynews]

its the kind that has the orangeish color shell spiral looking and puts out a slime string, and they stay stuck to whatever they are on and you can barley brake the shells, i know its not a sundial. its in the reef and what will eat them that is reef safe they are getting out of hand

[MechanicalEngineer]

vermitid?

http://reefkeeping.com/issues/2005-01/rs/index.php

[larrynews]

thats what i thought it was couldnt think of the name, but the pictures look different, tomorrow i'll post pics the lights are out...thanks