Unknown Spotting ( A Land Snail )

I looked out into the backyard, through the outdoor patio sliding glass door, at 8:00!a.m. in the morning. I saw a small land snail, resting on the outdoor patio screen. I was facing the sun. My camera won't take photographs, when I'm facing the sun, so I had to remove this snail from this screen, and then bring this snail inside my house with me, where it is more darker, and I'm able to take better photographs of this snail. It's shell, had six whorls to it. It's color, was different shades of brown. This snail, was seven eights of an inch long, and three eights of an inch wide...