Well, I live in Ohio, and currently it is pretty cold an a little bit a snow from a few days ago. It's pretty cold here. Well I was walking down the road when I saw a snail shell. I picked it up and examined it. I was pretty sure it was a type of salt water snail, just laying in the sidewalk, upside down next to somebodies lawn. I rushed it to my old school (which was nearby) then I dropped it off to be examined by my current teacher. She teaches Dog grooming, aquarium management and small animal care. She was baffled for why there would be a saltwater snail and was thinking it was a land snail, because it made no sense. My theory was somebody tossed it for whatever reason and left it to die. It has a very rough and bumpy shell. It's a spiral or helix shape, and is about the size of a half dollar. It had some type of moss/algae growing on it with some bits of sand on it's shell. It still had water behind it's "shield" or footpad but when touched it wasn't very responsive. It also has small tube like coral or something on it's side which also suggest it's salt water in origin. Unlike most land snails, it's shell is not glossy. It has a small dot like pattern that goes around it's shell. I will upload more info as I go on, but it's most likely dieing. I don't want to plop it in saltwater if it isn't marine but a lot of it's features suggest that it is. I doubt survival but I will do my best anyways. Edit: Here is a picture of a similar looking snail. The snail in the picture is a mexican turbo snail. The pattern is slightly different, but the shell shape and texture is a match. The bumps aren't as large but this is the general Idea. Also I forgot to mention it's sheil/cap/footpad is a spiral like shape, rather then being perfectly flat. All I need to know is if it's saltwater or not. I will try to upload the real picture asap.