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Amastra durandi

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Amastra durandi
Shells of Amastra durandi
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Amastridae
Genus: Amastra
Species:
A. durandi
Binomial name
Amastra durandi
Ancey, 1897

Amastra durandi 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 20 mm, its diameter 9.2 mm

The shell is imperforate or nearly perforate, conoid-oblong, and solid. Its surface is fleshy-white beneath a partly deciduous black-brown epidermis, occasionally marked with lightning-like streaks above. The shell is somewhat glossy and lightly striate, with a bare, blackish-purple apex. The spire is conic-turrite and acute, consisting of 7 whorls. The first whorl is sharply and closely striate, nearly flat, while the subsequent whorls are convex and separated by a narrow, simple suture. The body whorl is oblong and rounded.

The aperture is suboblique, sinuate-semioval, and angular at the top. The parietal wall and columella are glossy reddish, while the remaining interior is uniformly pale rose-white. The columella bears two oblique, sharp, and equal folds near the top. The peristome is acute. [2]

Distribution

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This species is endemic to Hawaii, occurring on Oahu island.

References

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  1. ^ Amastra durandi Ancey, 1897. 17 December 2024. Retrieved through: World Register of Marine Species.
  2. ^ Hyatt, A. & Pilsbry, H. A. (1910–1911). Manual of conchology, structural and systematic, with illustrations of the species. Ser. 2, Pulmonata. Vol. 21: Achatinellidae (Amastrinae). Philadelphia: Conchological Department, Academy of Natural Sciences. p. 245. Retrieved 3 December 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.
  • 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. p. 106.{{cite book}}: CS1 maint: multiple names: authors list (link)
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