Amastra seminigra

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Amastra seminigra
Amastra seminigra 001.jpg
Shell of Amastra seminigra (holotype)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Amastridae
Genus: Amastra
Species:
A. seminigra
Binomial name
Amastra seminigra
Hyatt & Pilsbry, 1911
Synonyms

Amastra (Amastrella) seminigraHyatt & Pilsbry, 1911 alternative representation

Contents

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

Description

The length of the shell attains 21.2 mm, its diameter 10.3 mm.

(Original description) The shell contains 6½ whorls. The apical whorls are fleshy or purplish in color, transitioning to a light yellow hue on the last two whorls. These are partially or predominantly covered with a pitch-black cuticle, which may appear in scattered shreds or remain nearly intact, except near the aperture.

The interior of the shell is either white or faintly tinged with pink, adding a subtle contrast to its exterior. [2]

Distribution

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

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References

  1. ↑ Amastra seminigra Hyatt & Pilsbry, 1911 . 3 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. 195. Retrieved 3 December 2024.{{cite book}}: CS1 maint: multiple names: authors list (link)PD-icon.svg This article incorporates text from this source, which is in the public domain .
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