Amastra rubristoma is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.[1]
| Amastra rubristoma | |
|---|---|
| |
| Shell of Amastra rubristoma | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Amastridae |
| Genus: | Amastra |
| Species: | A. rubristoma
|
| Binomial name | |
| Amastra rubristoma Baldwin, 1906
| |
| Synonyms | |
|
Amastra (Amastrella) rubristoma Baldwin, 1896 alternative representation | |
Description
editThe length of the shell attains 19.12 mm, its diameter 12 mm
The shell is dextral, imperforate, solid, and elongately ovate-conic, with an acute apex. The surface is marked by irregular growth striae, and the nuclear whorls are delicately radiately sulcated. Its coloration varies from reddish-brown to almost white, with darker upper whorls, often covered by a dark, fugacious epidermis. There are seven convex whorls with a well-impressed suture.
The aperture is slightly oblique and oval, with a red interior that occasionally appears livid-white. The peristome is acute and subtly thickened within. The columella ends in a strong, arched, lamellar plait, faintly tinged with red.[2]
Distribution
editThis species is endemic to Hawaii, occurring on the main island at Hilo.
References
edit- ^ Amastra rubristomaBaldwin, 1906. 7 December 2024. Retrieved through: World Register of Marine Species.
- ^ Baldwin, D.D. (1906). "Description of new species of Achatinellidae from the Hawaiian Islands". The Nautilus. 19 (12): 242. Retrieved 8 December 2024.
This article incorporates text from this source, which is in the public domain.
- 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. 240. Retrieved 3 December 2024.
{{cite book}}: CS1 maint: multiple names: authors list (link) This article incorporates text from this source, which is in the public domain. - Cowie, R. H., Evenhuis, N. L. & Christensen, C. C. (1995). Catalog of the native land and freshwater molluscs of the Hawaiian Islands. vi. Leiden: Backhuys Publishers. p. 107.
{{cite book}}: CS1 maint: multiple names: authors list (link)