Flat Bermuda Land Snail (Poecilozonites reinianus)
The Flat Bermuda Land Snail was described in 1864, it is one of 12 species that are known from the Bermuda Islands.
The species is known apparently from fossil- as well as from recent specimens, but appears to be already extinct now.
The shells reached sizes of about 0,3 cm in heigth and about 1 cm in diameter.
Unfortunately I cannot say much about this species, the same applies to all congeneric species of snails from the Bermuda Islands.
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References:
[1] Henry A. Pilsbry: Recent and fossil Bermudan snails of the genus Poecilozonites. Proceedings of the Academy of Natural Sciences of Philadelphia 76: 1-9. 1924
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(public domain)
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edited: 11.05.2019