| Amastra sola | |
|---|---|
 | |
| Shell of Amastra sola (holotype) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Amastridae |
| Genus: | Amastra |
| Species: | A. sola |
| Binomial name | |
| Amastra sola Hyatt & Pilsbry, 1911 | |
| Synonyms | |
Amastra (Cyclamastra) solaHyatt & Pilsbry, 1911 alternative representation Contents | |
Amastra sola is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae. [1]
The length of the shell attains 9.8 mm, its diameter 5⅓ mm.
(Original description) The shell contains 6½ whorls. The shell is openly perforate, conic, and thin, with minimal luster. The last one or two whorls are a rich dark reddish-brown, accented by lighter lines and patches, while the upper whorls appear pale yellowish, indicative of early cuticle decay.
The spire has straight outlines, though the individual whorls are markedly convex, creating a pronounced contour. The whorls in the protoconch are smooth, transitioning to later whorls that exhibit irregular fine growth-wrinkle sculpture.
The aperture is reddish-brown on the interior, with a very thin, sharp outer lip. The basal margin is well-rounded, while the columellar margin is straight, slightly dilated at the upper end, and arches over the narrow umbilicus. The columellar fold is thin, small, and strongly oblique, adding to the shell's delicate structure. [2]
This species is endemic to Hawaii, occurring on Oahu Island.
Amastra porcus is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Amastridae.
Amastra affinis is a species of land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra eos is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra kalamaulensis is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra kaunakakaiensis is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra lahainana 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 abavus is an extinct 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 caputadamantis 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 hawaiiensis is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra johnsoni is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra makawaoensis 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 nubifera is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra perversa is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra subcrassilabris is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Amastra subobscura is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
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