Perkin’s Newcombia Snail (Newcombia perkinsi)
Perkin’s Newcombia Snail apparently was restricted to the Makakupaia Valley on the island of Moloka’i, Hawaiian Islands, this place is now highly degraded and overgrown by introduced vegetation.
The shells have a size of 2,1 cm in height. [1]
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Perkin’s Newcombia Snail is now considered extinct.
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References:
[1] George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 22: Achatinellidae. 1912-1914
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(public domain)
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edited: 04.06.2021