Worm ID????

[thegrog]

I have seen this worm in my reef for around 8 months. It apears from the live rock, crawls around for a minute, and then disappears back into the rock. It does not seem to have harmed anything so I have let it be. Seems to be only one of them as well.
Any input would help.
Thanks.

 

[thegrog]

Here is another pic:

 

[thegrog]

Oops, here it is:

 

[kimkissyfish]

Cool PIC, he comes out in the daytime? I only see worms at night.. yours is a BIG one too....
Sorry. I cant tell you what it is, but I can tell you it doesnt look like a bristle for sure. ??
Kim

 

[moray345]

lookin kind of like a peanut but thats all that comes to mind right now:thinking:

 

[cathbad]

Based on the first photo, particularly the head region, I would guess some type of planarian.

 

[bang guy]

It's a Nemertea aka Ribbon Worm.