worm id please

[Yankees2519]

noticed three of them on one of my rocks, they come in and out and open up as pictured. he retracts by rolling back into himself he doesnt slide in and out of the rock.
p.s. off topic, if i join as a premium member will the sites search feature work all the time?

 

[Reefing102]

possibly peanut worm.

the off topic - it will usually work 99% of the time. However right now the search is offline and Doug (beerguy - one of our admins) is rebuilding the tables so that we can search again after a power failure from our host

 

[Yankees2519]

one more picture, i searched for peanut worms and they look short and stubby these seem long and thin, but im not positive

 

[skippy2]

Your description of rolling back into itself sounds exactly what a peanut worm does.

 

[ryan_paskadi]

It is a peanut worm.

 

[Paintbug]

that is peanut worm for sure. they will stretch several times their body length in search of food. great to have in the tank!