Sulphur-colored Amastra Snail (Amastra luctuosa ssp. sulphurea)

The Sulphur-colored Amastra Snail is a subspecies of the Mournful Amastra Snail (Amastra luctuosa (Pfeiffer)) and occurred in the vicinity of that form, in some valleys along the northern shore of O’ahu, Hawaiian Islands.

The shells reached sizes of about 1,55 cm in height and 0,95 cm in diameter. [1]

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References:

[1] George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 21: Achatinellidae (Amastrinae). 1911

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edited: 06.10.2020