So I found this on my my rock a while back and can't figure out what it is. I know it is mobile as I have watched it move ever so slowly and if I get around it with anything i can see it suck down on the rock. So is it a limpet or something else?
It is about the size of a quarter. I has quit moving around and seems to like it there. Yeah smoothie, the thing that is dead center in the picture. The thing in the hole.
