worm

[rous]

i have a worm in my living rock ,it looks like a millipede but has no legs and no bristles.
it seems to be black and white striped.extends out of a whole then the mouth comes out of the end and attacks the foilage in the tank.to fast to catch ive tried.
anyone know what it is or could be.
like i say its basicly a worm.
cheers dave

[LeslieH]

Sounds like a peanut worm (sipuncula). The body stays in the hole while the feeding structure (called an introvert) extends out to find food. Kinda like the big beast in the Alien movies!

See this article on the group for more info:
http://www.reefkeeping.com/issues/2004-04/rs/index.php