Amastra laeva
| Amastra laeva | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Amastridae |
| Genus: | Amastra |
| Species: | A. laeva
|
| Binomial name | |
| Amastra laeva Baldwin, 1906
| |
| Synonyms | |
| |
Amastra laeva is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.[1]
Description
[edit]The length of the shell attains 12 mm, its diameter 5 mm.
The shell is sinistral, imperforate, and relatively thin, with a conically turreted shape and an acute apex. The surface is finely striated with incremental growth lines, while the whorls of the protoconch display delicate radiating sulcations. The coloration is brown, adorned with irregular patches of a dark, fugacious epidermis. There are six somewhat convex whorls, with the suture distinctly impressed.
The aperture is oblique and oval, with a livid-white interior. The peristome is simple and thin, and the columella concludes in a slender lamellar plait.[2]
Distribution
[edit]This species is endemic to Hawaii, occurring on Maui Island.
References
[edit]- ^ Amastra laevaBaldwin, 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): 137–138. Retrieved 7 December 2024.
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)
External links
[edit]- 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. 141. 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.