Samoana attenuata (Pease, 1864)

Cone-shaped tree-snail



Taxonomy & Nomenclature

Synonym/s: Partula attenuata Pease, 1864; Samoana solitaria Crampton, 1932


Conservation Status


Last record: February 2006

IUCN RedList status: Critically Endangered



Tahiti, Moorea and Raiatea, Society Islands, French Polynesia


Biology & Ecology










Original scientific description:

Pease, W.H. 1865 (for 1864). Descriptions of New Species of Land Shells from the Islands of the Central Pacific. Proc. Zool. Soc. Lond. 32: 668-676.


Other references:

Coote, T. (2007). Partulids on Tahiti: differential persistence of a minority of endemic taxa among relict populations. American Malacological Bulletin 22: 83-87.

Coote, T. (2009). Samoana attenuata. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. ( Downloaded on 27 July 2013.

Crampton, H.E. 1932. Studies on the variation, distribution, and evolution of the genus Partula. The species inhabiting Moorea. Carnegie Institute of Washington, Washington, D.C., Publ. No. 410: 1-335.

Gerlach, Justin. (2016). Icons of Evolution: Pacific Island tree-snails, family Partulidae. Cambridge, U.K.: Phelsuma Press. [Description of new species] [List of synonyms]

Lee, Taehwan et al. (2008). Not completely lost: two partulid tree snail species persist on the highest peak of Raiatea, French Polynesia. Oryx 42(4): 615-619. [Abstract]

Lee, Taehwan et al. (2014). Evolutionary history of a vanishing radiation: isolation-dependent persistence and diversification in Pacific Island partulid tree snails.  BMC Evolutionary Biology 14: 202.


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