Michele, I think the snail eating snails are the elongated ones -- the shell is sort of a long cone. I know we had a couple of local gardeners show them on a TV gardening show, and they said they were the snails that eat other snails. I have a bunch in my garden, and when I apply my deadline I'm always sorry to see one or two of those mixed in with the shells of dozens of the bad guys. And when I'm weeding or planting I always "rescue" the long-shelled snails along with the earthworms.