Help me ID this yucky worm

[seas_inside]

Hi. I was searching my LR the other day, and I came across the worm, it was dead. Here's a pic, any ideas on what it is?

and for size comparison, sorry it's blurry

 

[greenbean36191]

It's a peanut worm. These guys are great detritivores. They're very cool when they're alive.

 

[seas_inside]

Hmm...maybe not so "yucky" after all. Thanks for your help.

 

[650-IS350]

got a bunch of them in my rocks... they suddenly dart / stretch back in to there holes when startled...