Some ID help please, tentacles on live rock

[tcorriveau]

Hello, I have two areas on one of my live rocks that appear to have tentacles coming from small white areas. I have been watching these for the past few days and noticed that if a snail, crab, or fish brush against them they retract. Any ideas?

 

[MondoBongo]

looks like it might be a spaghetti/spionid/medusa worm

 

[Sk8r]

I'd say spaghetti worm. No problem.

 

[DubiousMaximus]

Indeed, detrivores mostly iirc

 

[cloak]

Check this out. (Terebellid)

http://www.lionfishlair.com/hitchhiker/hitchhiker.shtml

HTH.

 

[tcorriveau]

Thanks