| Amastra grayana | |
|---|---|
 | |
| Shell of Amastra grayana | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Amastridae |
| Genus: | Amastra |
| Species: | A. grayana |
| Binomial name | |
| Amastra grayana (L. Pfeiffer, 1856) | |
| Synonyms | |
| |
Amastra grayana is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae. [1]
The length of the shell attains 21.5 mm, its diameter 12 mm
The shell is imperforate, dextral, ovate-conic, and rather solid, with a slightly glossy surface. It is grayish-flesh colored and irregularly marked with chestnut bands that fade near the upper portion. The spire is inflated-conic with an acute, black apex. The shell contains 6½ whorls; the upper ones are flat and radially plicate, the penultimate whorl is convex, and the body whorl, which is nearly as long as the spire, is finely striate.
The aperture is subvertical and acuminate-oval. The columellar fold is median, subtransverse, and triangular. The peristome is simple and unexpanded, with the columellar margin slightly dilated and adnate. [2]
This species is endemic to Hawaii, occurring on Oahu island.
It has been originally recorded from Oahu, evidently in error, since no Oahuan species has flat, radially plicate upper whorls. [2]
Amastra porcus is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Amastridae.
Amastra eos is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra ultima is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra baldwiniana is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra borcherdingi is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra elegantula is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra morticina is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra sola is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra thaamuni is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra antiqua is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra nana is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra undata is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra montana is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra conifera is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra nucula is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra davisiana is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra irwiniana is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra spaldingi is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra decorticata is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra extincta is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
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