Beaverpond Marstonia (Marstonia castor)

The Beaverpond Marstonia was described in 1977, it is known exclusively from its type locality, Cedar Creek in the Flint River Drainage, Crisp County, Georgia, USA.

The species was not found during recetn surveys and was finally declared extinct in December 2017. [1]

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References:

[1] Georgia Snail Is First Species Declared Extinct Under Trump Administration. www.biologicaldiversity.org. Retrieved 2018-01-07

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edited: 01.05.2019