The Recently Extinct Plants and Animals Database

Rhachistia aldabrae Martens, 1898

Aldabra banded snail



Taxonomy & Nomenclature



Conservation Status

Last record: 1997 (Gerlach, 2007)

Rediscovered in 23 August 2014

IUCN RedList status: Extinct



Aldabra Atoll, Seychelles


Biology & Ecology










Battarbee, Richard W. (2014). The rediscovery of the Aldabra banded snail, Rhachistia aldabrae. Biology Letters 10:  20140771.

Commentary by Rhett A. Butler, (August 12, 2007). Climate change claims a snail.

Cowie, Robert H., Régnier, Claire, Fontaine, Benoît, and Bouchet, Philippe. (2017). Measuring the Sixth Extinction: what do mollusks tell us? The Nautilus 131(1): 3-41.

Fryer, J. C. F. (1911). The structure and formation of Aldabra and neighbouring islands—with notes on their flora and fauna. Trans. Linn. Soc. Lond. Ser. 2: Zool 14: 401-442.

Gerlach, Justin. (2006). Terrestrial and freshwater Mollusca of the Seychelles Islands. Leiden, The Netherlands: Backhuys Publishers.

Gerlach, Justin. (2007). Short-term climate change and the extinction of the snail Rachistia aldabrae (Gastropoda: Pulmonata). Biology Letters 3: 581-585.

Gerlach, Justin. (2009). Rhachistia aldabrae. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. ( Downloaded on 01 June 2013.

Gerlach, Justin. (2012). Red Listing reveals the true state of biodiversity: a comprehensive assessment of Seychelles biodiversity. Phelsuma 20: 9-22.

Hambler, Clive et al. (2007). “Extinction” of Rhachistia aldabrae contested. Unpublished manuscript. [automatic download]

Régnier, Claire, Fontaine, Benoît and Bouchet, Philippe. (2009). Not Knowing, Not Recording, Not Listing: Numerous Unnoticed Mollusk Extinctions. Conservation Biology 23(5): 1214-1221.


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