Cyclomorpha secessa Bouchet & Abdou, 2003



Taxonomy & Nomenclature



Conservation Status


Last record: before 1934


All known shells of this species were collected after the individuals inside them had died (1934). Thus, there are no recorded encounters with living specimens of this species (Bouchet & Abdou, 2003).



Akamaru, Gambier Islands


Biology & Ecology




Holotype: BPBM 264012

Type locality: "Akamaru, Gambier Is"


Paratype: BPBM 138841






Original scientific description:

Bouchet, Phiippe, and, Abdou, Ahmed. (2003). Endemic land snails from the Pacific Islands and the museum record: documenting and dating the extinction of the terrestrial Assimineidae of the Gambier Islands. J. Moll. Stud. 69: 165-170.


Other references:

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.

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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