What is this growing out of my rock?

[Peppie]

Legs are about 1/2'' long and slim from the top to the base and the base being the size of a toothpick. They are coming out of small cracks in the rock. I have counted 4 or 5 0f them in a 3'' diam. not all coming from the same rock.

Another site said Peanut Worm, Harl.Serpant Starfish, Some type of snail. I googled the PW and the HSstar and dont think that is it Because it is coming out of separate rocks.
Anybody have an idea?

 

[jaygalindo]

some type of worm i think

 

[Faciosity]

looks like mini brittle or serpent stars sticking there arms out looking for food. Great part of your clean-up crew.

 

[Slate]

Yeah, the bands on the one to left made me think brittle star right away as well. My rocks have little starfish arms sticking out all over the place.

 

[ac7av]

looks like mini brittle or serpent stars sticking there arms out looking for food. Great part of your clean-up crew.

That’s what I was thinking too. Do them move at all?

 

[Slate]

Yea, they can be pretty active at night. I have seen them move pretty quick in and out of a rock if piece of shrimp lands close enough to one as well.

 

[Faciosity]

They move a lot, and are great not only as a cleaner, but also as food for many shrimp and fish. They can easily lose a few legs and go on living. Don't think I've ever seen a coral eat them, but it's very possible. I recently saw one of my acan lords munching on a stomotella snail, and The BGM I got had a reputation for eating a bristleworm.