Many Tennessee Snails I need help identifying

[gluckuk]

I need some help identifying species of snails I've filmed here in Tennessee. If you know what any of these are, it will be a huge help to me.

First this little guy with a flat, ridged shell. I've seen a lot of them.

Next is this larger snail. It had a black body with a pale white foot, and the shell was about an inch in diameter.




These next two images are of the same species. The shell was extremely flat and the spiral apeture was totally open as you can see by the first image where it's on its back.


This next slug was found in Big Frog Trail in the southern appilacian trail, southeast Tennessee.

This glossy shelle\d snail was found under a log right next to the slug above. 

This last species I believe is cannibalistic. I have a closeup, and a picture of a different specimen after eating another snail.

[wolf]

Hi gluckuk,

I'm sorry, but it will very difficult to do a serious, valid species determination based on your pictures. It's always extremely helpful to know the exact width/hight of the shell. In many cases we need a good picture of the aperture to judge the slats/teeth. Different views with different perspectives are also helpful to judge the shape of the shell. Juvenile and living specimens are difficult to determine or at least to narrow down, because certain properties are not yet developed or can not be seen because of the soft parts of the snail.

#1 should be an Anguispira species, #2 might be genus Mesomphix?

Sorry again, kind regards: wolf

[Liguus]

Unfortunately, as wolf mentioned species level ID with north american land snails is very hard without measurements and good pictures of the shell structure.

I can make an educated guess on most of them though. The last one is Haplotrema, likely H. concavum since this is the only species that lives in your range if I remember correctly. Pic #1 make me think Patera sp. but without seeing the aperture I can't say for sure... it may be Inflectarius species or possibly Triodopsis as well. #2 might be Mesomphix like wolf said, although it may also be another Haplotrema concavum.

pics 3&4 may be a Discus species. The slug looks like a mantleslug, Philomycus sp. likely P. carolinensis

pic 6 looks like Ventridens sp.

[gluckuk]

Nov 14, 2019 23:01:41 GMT Liguus said:

Unfortunately, as wolf mentioned species level ID with north american land snails is very hard without measurements and good pictures of the shell structure.

I can make an educated guess on most of them though. The last one is Haplotrema, likely H. concavum since this is the only species that lives in your range if I remember correctly. Pic #1 make me think Patera sp. but without seeing the aperture I can't say for sure... it may be Inflectarius species or possibly Triodopsis as well. #2 might be Mesomphix like wolf said, although it may also be another Haplotrema concavum.

pics 3&4 may be a Discus species. The slug looks like a mantleslug, Philomycus sp. likely P. carolinensis

pic 6 looks like Ventridens sp.

Thank you both. Even though none of you were able to be specific, this has helped me do my own research and widdle things down. I may not be able to get the exact genus, but I can be specific enough for the narrative.

also, the final snail is definitely H. concavum. I looked up their size and pictures of them and I have little doubt. I also believe the slug is a carolina mantleslug. I was within the range when I saw it and it matches the size and color pattern of the images I've seen.