Well, I guess that is what it must be. Apart from the whorls everything else matches. I found this cool site that gives you a map of sites found for just about every species of well just about everything, the only snail in the Viviparidae family found up this far in the US is C.chinensis.
Along with this guy we collected two other types of snails. Some bladders, the Physella genus has some natives to this region, although I cannot find exactly which ones, but I am satisfied with that. The other guy still puzzles me. He looks like a trumpet snail, but from everything I have read there is nothing in the genus that exists up here, even non-natives. It's a mystery. . .
Thanks for the help on my big guys. If anyone has any more info to through out, feel free.
Any chance of some photos of your trumpet snail lookalike? I don't know the Pacific Slope fauna well at all, but I know there are some pleurocerids (AKA pennywinkles, periwinkles, river snails) up there. Many pleurocerids, at least here in the east, look similar to trumpet snails.
Well, awesome. From what I read they might be in the Jugafamily. Except for this little guy in the pics they all have really dark brown almost black shells. They are about an inch and a quarter long. Mantles are dark brown almost black.
I wasnt sure what they were cuz everything I read said that if they had a shell like a trumpet snail and an operculum then they were in the trumpet snail genus. It's hard to find correct info on the internet when you dont know exactly where to look. Thanks for the help.