Amastra davisiana Cooke

Konahuanui Amastra Snail (Amastra davisiana)  

This species was described in 1901.  

The species was apparently endemic to the summit of the Pu’u Konahuanui, a mountain in the Ko’olau Range on the island of O’ahu, Hawaiian Islands.  

The shells reached sizes of about 1,44 to 1,65 cm.  

The Konahuanui Amastra Snail is now considered extinct.  

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Depiction from: ‘George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 21: Achatinellidae (Amastrinae). 1911′  

(public domain)

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edited: 30.09.2017