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| Amastra rugulosa | |
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| Shell of Amastra rugulosa (lectotype at MNHN, Paris) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Amastridae |
| Genus: | Amastra |
| Species: | A. rugulosa |
| Binomial name | |
| Amastra rugulosa Pease, 1870 | |
| Synonyms | |
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Amastra rugulosa is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
- Subspecies
- † Amastra rugulosa annosa C. M. Cooke, 1917
- Amastra rugulosa fastigata C. M. Cooke, 1917
- Amastra rugulosa janeae C. M. Cooke, 1933
- Amastra rugulosa normalis Hyatt & Pilsbry, 1911
- Amastra rugulosa rugulosa Pease, 1870
- Variety
- Amastra rugulosa var. similaris Pease, 1870: synonym of Amastra similaris Pease, 1870 ( superseded rank)
Description
The length of the shell attains 12 mm, its diameter 9 mm
The shell is ovate-conic, thick, and rimate, with obliquely wrinkled striations. It is covered by a rough brown epidermis, beneath which lies a chestnut-colored surface. The lip edge and the area around the base are whitish, while the apex is blackish.
The shell is composed of six convex whorls, which are occasionally slightly inflated. The suture is distinctly impressed. The aperture is ovate and vertically oriented. The columellar fold is robust, callous, compressed, and nearly transverse. The lip is thickened, adding to the shell’s overall solid structure.
Distribution
This species is endemic to Hawaii, occurring on Kauai island.
References
- Amastra rugulosa Pease, 1870). 28 December 2024. Retrieved through: World Register of Marine Species.
- 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. 226. 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.
- Cooke, C.M. jr. (1933). "New species of Amastridae". Bernice P. Bishop Museum Occasional Papers. 10 (6): 1–29.
- 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. pp. 1–248.
{{cite book}}: CS1 maint: multiple names: authors list (link)
External links
- Pease, W.H. (1870). "Observations sur les espèces de coquilles terrestres qui habitent l'ile de Kauai (îles Hawaii), accompagnées de descriptions d'espèces nouvelles". Journal de Conchyliologie. 18 (1): 95.