Greater Gonospira Snail (Gonospira majusculus)
The Greater Gonospira Snail from the island of Mauritius is known exclusively from subfossil shells.
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The name is probably a synonym for some other species, since I was not able to get any information about this species so far.
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Photo from: ‘Louis Germain: Faune malacologique terrestre et fluviatile des Iles Mascareigne. Paris 1921’
(public domain)
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edited: 21.03.2018