1 -- you have already IDed this in an email message. I have yet to add it to a gastropod web page. obviously not a T. caroliniana; thus disregard question about length.

2

3

4

5 -- I don't know why this is here. Maybe the debris on its side made me perceive it as not being a pure white rice olive. However, in all regards except color, it seems to be identical to the next shell.

6

7

8

9

9 or 10 -- I deliverately photographed the dorsal side of one of these shells.

10 -- this one looks different

11

12 -- this one also looks different