What could this critter be?

[corrosionjerry]

Ok after turning on my lights quickly early this morning I saw several bristleworms... I guess I will have to do something about them ... not sure what at the moment....

In anycase while I was inspecting or looking at these critters I noticed a spider looking critter in a crevice in the rock ... very small body with long tentaicales like a octopus.... dark grey to black in color.... spider looking only flat...


any ideas on what it could be?