Amastra goniops

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Amastra goniops
Amastra goniops 001.jpg
Shell of Amastra goniops (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. goniops
Binomial name
Amastra goniops
Pilsbry & C. M. Cooke, 1914
Synonyms

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

Contents

Amastra goniops 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 11.2 mm, its diameter 7.5 mm.

(Original description) The shell is imperforate or narrowly perforate, solid, and bi-conic. It has a Vandyke brown coloration that often fades to a lighter pecan brown on the denuded surface near the aperture. The surface is rather dull, with light growth wrinkles and occasional spiral striations above the periphery. The periphery is sharply angular or carinate near the front, gradually rounding in the last half or less of the shell. The spire is convex in its lower portion and slightly concave in the upper part.

The shell contains 5½ whorls; The embryonic whorls are finely and sharply striate, with the embryonic shell angular at the periphery, resembling that of Amastra obesa . The aperture is noticeably oblique, with an interior that is white or delicately tinted in pale blue, pink, or violet shades. The lip-rib is strong and nearly white. The columella is short and features a prominent, slightly oblique fold. [2]

Distribution

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

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References

  1. ↑ Amastra goniops 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. 26. Retrieved 27 November 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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