Amastra mastersi

Amastra mastersi
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Amastridae
Genus:	Amastra
Species:	A. mastersi
Binomial name
	Amastra mastersi; (Newcomb, 1854)
Synonyms
	Achatinella mastersi Newcomb, 1854 superseded combination

Amastra mastersi is a species of land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.^[1]

Description

(Original description) The shell is dextral and thin, consisting of seven rounded whorls, slightly rugose on the upper portion, with the body whorl prominently inflated. The apex is acute, and the suture is well-impressed. The aperture is ovate with a simple outer lip, and the short columella bears a thin lamellar plait.

The shell is either white or a rich chestnut color, often showing traces of a thin brown epidermis. The interior is white or bluish-white.

This species exhibits significant variation in size and coloration, ranging from pure white to shades of light mahogany. The lower part of the shell is often white, while the upper portion may display vibrant hues of chestnut or rose.^[2]

Distribution

This marine species is endemic to Hawaii.

References

^ Amastra mastersi (Newcomb, 1854). 24 November 2024. Retrieved through: World Register of Marine Species.
^ Newcomb, W. (1854). "Descriptions of seventy·nine new species of Achatinella, (Swains.), a genus of pulmoniferous mollusks, in the collection of Hugh Cuming, Esq". Proceedings of the Zoological Society of London. 21: 134. Retrieved 19 November 2024. This article incorporates text from this source, which is in the public domain.

Cowie, R. H., Evenhuis, N. L. & Christensen, C. C. (1995). Catalog of the native land and freshwater molluscs of the Hawaiian Islands. Leiden: Backhuys Publishers. pp. 1–248.{{cite book}}: CS1 maint: multiple names: authors list (link)

[WoRMS-1] Amastra mastersi (Newcomb, 1854). 24 November 2024. Retrieved through: World Register of Marine Species.

[2] Newcomb, W. (1854). "Descriptions of seventy·nine new species of Achatinella, (Swains.), a genus of pulmoniferous mollusks, in the collection of Hugh Cuming, Esq". Proceedings of the Zoological Society of London. 21: 134. Retrieved 19 November 2024. This article incorporates text from this source, which is in the public domain.

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