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Amastra albocincta

From Wikipedia, the free encyclopedia

Amastra albocincta
Shell of Amastra albocincta (holotype)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Amastridae
Genus: Amastra
Species:
A. albocincta
Binomial name
Amastra albocincta
Pilsbry & C. M. Cooke, 1914
Synonyms

Amastra (Amastra) albocincta Pilsbry & C. M. Cooke, 1914 · alternative representation

Amastra albocincta is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae. [1]

Description

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The length of the shell attains 9.3 mm, its diameter 5 mm.

(Original description) The shell is small, perforate, oblong-conic, and thin. It has a somewhat glossy surface that may appear soiled in life. The spire is straightly conic, tapering to a minute apex. The embryonic whorls are elongated, strongly convex, and adorned with fine striations, giving them a silky luster. The remaining whorls are convex and angular at the periphery, with the angle concealed in adults or occasionally visible just above the suture. The body whorl is rounded, featuring irregular, delicate growth striae. Its coloration is liver-brown, often streaked with yellow and adorned with creamy bands near the suture, periphery, and columella, though these bands are sometimes faint or absent. The aperture is dark within, and the outer lip is thin and not in the least thickened. [2]

Distribution

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This species is endemic to Hawaii and occurs on Molokai Island.

References

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  1. ^ Amastra albocincta Pilsbry & C. M. Cooke, 1914. 27 November 2024. Retrieved through: World Register of Marine Species.
  2. ^ Pilsbry, H. A. & Cooke, C. M. (1914–1916). Manual of conchology, structural and systematic, with illustrations of the species. Ser. 2, Pulmonata. Vol. 23: Appendix to Amastridae, Tornatellinidae, Index to vols. XXI-XXIII. pp. i-xi. Philadelphia: Conchological Department, Academy of Natural Sciences. p. 40. Retrieved 27 November 2024.{{cite book}}: CS1 maint: multiple names: authors list (link) Public Domain This article incorporates text from this source, which is in the public domain.
  • Baker, H.B. (1963). Proceedings of the Academy of Natural Sciences of Philadelphia. 115 (8): 197. {{cite journal}}: Missing or empty |title= (help)
  • Cowie, R. H., Evenhuis, N. L. & Christensen, C. C. (1995). Catalog of the native land and freshwater molluscs of the Hawaiian Islands. vi. Leiden: Backhuys Publishers. p. 107.{{cite book}}: CS1 maint: multiple names: authors list (link)