Based on photos from applesnail.net, I think they're Lymnaea auricularia, or possibly Lymaea ovata. I've googled them, but I can't find much information. When I purchased them, I thought I was getting Japanese trapdoor snails, which I know would be able to overwinter in my pond, but I'm not sure about these guys.
I made 2 attempts in the spring to buy Japanese trapdoor snails for my pond. The 1st time I ended up with olive nerite snails and the 2nd time I got these guys. I've since done some research and discovered that there are many species of snails which are, technically, trapdoor snails.

I made 2 attempts in the spring to buy Japanese trapdoor snails for my pond. The 1st time I ended up with olive nerite snails and the 2nd time I got these guys. I've since done some research and discovered that there are many species of snails which are, technically, trapdoor snails.



