Lanai Cookeconcha Snail (Cookeconcha lanaiensis)  

The Lanai Cookeconcha Snail was, as its name implies, endemic to the island of Lana’i, Hawaiian Islands, it was described in 1896. [1]

This species is also considered to have occurred on the islands of Hawai’i and Kaua’i (the specimen depicted below is supposed to be from that island), however, the specimens from these islands should definetely be reinvestigated.

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References:  

[1] Alan Solem: Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. Field Museum of Natural History Chicago, Illinois 1976  

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edited: 13.06.2020