Bristleworm ID

[bigeyedfish]

Came home yesterday to notice for the first time in four months a two inch long bristleworm. This guy definitely knew i was looking at him cause he retracted in a rock quickly. It was purple with an orange tip and had some nice looking spikes. I know there are a few species, some better than others, is this one i should be worried about??? I'm gonna have to watch the next time i move my LR around.

 

[fender]

There are literally thousands of different kinds of worm we put in the category of "bristle" worms. Almost impossible to get a positive ID even with a pic, much less without.
Sorry...