Lurking in my garden....

When I was moving containers around and stripping back some of the [expletive deleted] english ivy (you know, I love the look of the stuff, but it is so tenacious!!! -- I guess that's why it's considered an invasive species. Hmph.).... anyway, after stripping that back, I found a snail lurking on a planter! I have seen many slugs in my garden (grrr, don't like them eating all my plants) but never a snail before. I had to take a photo, of course: