I think I have some kind of pencil urchin. It is only about the width of an eraser tip on a pencil. I have watched it move across the rock into holes. When the lights are on it normally stays in a hole or just in one place on the rock. These are the best pictures I could get for now. It is so small my camera has a hard time focusing on it.
Does anyone else have an opinion?
Does anyone else have an opinion?