Montagui’s Partulina Snail (Partulina montagui)
This species was described in 1913, it was endemic to the island of O’ahu, Hawaiian Islands.
The shells are quite large, about 2,5 to 2,7 cm.
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The species was apparently already extinct when it was discovered and described.:
“The shells occur in the humus near the surface, along the roadside, and are very rare, apparently lying in “pockets” which have been filled and covered by the wash down the slope. Probably the forest disappeared from where the shells are found not much than hundred years ago.” [1]
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References:
[1] ‘G. W. Tryon; H. A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata, Vol. 22. 1912-1914
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(public domain)
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edited: 08.10.2017