Amastra elegantula

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Amastra elegantula
Amastra elegantula 001.jpg
Shell of Amastra elegantula (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. elegantula
Binomial name
Amastra elegantula
Hyatt & Pilsbry, 1911
Synonyms

Amastra (Amastra) elegantulaHyatt & Pilsbry, 1911 alternative representation

Contents

Amastra elegantula 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 11.8 mm, its diameter 6.9 mm.

(Original description) The shell contains 5½ whorls. The shell is imperforate, small and relatively thin, with an ovate shape and a straightly conic spire. The body whorl is a very pale brown, lighter near the suture, featuring an opaque white band at the periphery and sparsely streaked with brown, transitioning to chestnut-brown behind the lip.

The whorls in the protoconch are slightly convex, with the first being very finely striate. The second whorl is finely plicate below the suture and striate in the middle. Subsequent whorls are adorned with growth striae, adding subtle texture to the surface.

The outer lip is thin, while the columella is purplish and supports a relatively strong, thin lamella, contributing to the shell's refined and delicate appearance. [2]

Distribution

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

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References

  1. ↑ Amastra elegantula 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. 277-278. Retrieved 2 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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