A worm, and zoomed in. What is it?

[ItsAName]

Here's something I saw crawling around the rock. I took it out and took a picture under a microscope too, but the microscope pic was tough because it was round. I included the microscope shots in case it showed typical signs of being something.







Microscope Shots

 

[Christopher Davis]

Bristle worm, can be a good clean up crew if numbers are kept in check.