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Proceedings of the Geological Society |
Lieutenant Spratt has found eleven species of fresh-water shells (all univalves) and a cast, apparently of a Helix, in the fresh-water limestone of Vourla.
Of these, two belong to the genus Limneus, one of which agrees with the Limneus longiscatus of the Paris basin and the Isle of Wight fresh-water bed, and the other is apparently the Limneus ventricosus of Brongniart; also a Paris basin shell.
Five species belong to the genus Planorbis. One of these is Planorbis rotundatus, a well-known eocene fresh-water fossil. Three are closely allied to, if not identical with, Paris basin fossils, and one is new.
Two belong to the genus Paludina. One of these appears to be the Paludina atomus of the Paris basin. The other is new.
One belongs to the genus Melanopsis. It is the Melanopsis buccinoidea, a species which, commencing its range in the oldest tertiary strata, has lived on to the present day, and is now a common inhabitant of western Asia, northern Africa, and the southern parts of Europe.
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