Amastra gulickiana

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

Amastra (Metamastra) gulickianaHyatt & Pilsbry, 1911 alternative representation

Contents

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

Subspecies

Description

The length of the shell attains 10 mm, its diameter 7.7 mm

The shell is narrowly perforate, globose-conic, rather solid, and glossy, with no dull or deciduous outer cuticle. The spire is very short, with outlines that are nearly straight to very slightly convex, ending in an obtuse summit.

The shell contains 5⅓ whorls. The whorls of the protoconch are nearly smooth, with the first being dull purple and the rest covered by a thin, light greenish-yellow cuticle, transitioning to reddish-brown on the latter part of the body whorl. Subsequent whorls are lightly marked with growth striae and are less convex than the embryonic whorls. The body whorl is subglobose, subangular in front of the aperture, and becomes fully rounded in its last two-thirds.

The aperture is somewhat oblique, with a purple interior that becomes paler and slightly thickened near the lip. The columella is short, featuring a moderate, not overly oblique fold below its middle, with the edge dilated above the fold. The parietal callus is thin and purple, complementing the overall structure. [2]

Distribution

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

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References

  1. ↑ Amastra gulickiana Hyatt & Pilsbry, 1911 . 19 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. 168. 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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