Actually, abalones look a little different from that. I have a pic on my home computer but I'm at work. I live next to Abalone Cove, and although you can't collect them, you can pick them up if you are skilled, to inspect and take pictures of.
I'm not skilled... they clamp before I can get them off the surface, but the hubby is particularily good at it.
I'm certain that is a chiton in the pic.