| Revision as of 16:38, 12 December 2024 editJoJan (talk | contribs)Autopatrolled, Administrators172,610 edits + image← Previous edit | Latest revision as of 09:04, 13 December 2024 edit undoWilliam Avery (talk | contribs)Autopatrolled, Extended confirmed users, Page movers, Pending changes reviewers, Rollbackers475,406 edits MOS:REFSPACE; + taxonbar from=Q131437029 | ||
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| ==Description== | ==Description== | ||
| The length of the shell attains 18.9 mm, its diameter 9.6 mm | The length of the shell attains 18.9 mm, its diameter 9.6 mm. | ||
| The shell is imperforate, dextral, cylindrically ovate, and somewhat thin. It is irregularly and faintly striated with growth lines, with the third ] distinctly and diagonally striated. The third and fourth whorls feature a distinct spiral thread just above the sutures. The first three whorls are light brown with a yellowish tinge, while the lower three are uniformly dark resinous chestnut. | The shell is imperforate, dextral, cylindrically ovate, and somewhat thin. It is irregularly and faintly striated with growth lines, with the third ] distinctly and diagonally striated. The third and fourth whorls feature a distinct spiral thread just above the sutures. The first three whorls are light brown with a yellowish tinge, while the lower three are uniformly dark resinous chestnut. | ||
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| The ] is subcylindrical with slightly convex outlines and has a somewhat obtuse ]. The suture is simple and barely impressed. There are 6½ whorls, increasing somewhat regularly in size. The whorls of the ] are slightly convex, while the rest are flatly convex. The ] is cylindrical and tapers gradually towards the base. | The ] is subcylindrical with slightly convex outlines and has a somewhat obtuse ]. The suture is simple and barely impressed. There are 6½ whorls, increasing somewhat regularly in size. The whorls of the ] are slightly convex, while the rest are flatly convex. The ] is cylindrical and tapers gradually towards the base. | ||
| The ] is subpyriform, bluish on the interior, and only slightly oblique. The ] is nearly straight, barely twisted, with a basal columellar fold that is small, thin, oblique, and flexuous. The outer margin of the ] is regularly curved, erect, and thin, forming a slight angle with the base of the columella. The columellar margin is thin, appressed, and adnate. |
The ] is subpyriform, bluish on the interior, and only slightly oblique. The ] is nearly straight, barely twisted, with a basal columellar fold that is small, thin, oblique, and flexuous. The outer margin of the ] is regularly curved, erect, and thin, forming a slight angle with the base of the columella. The columellar margin is thin, appressed, and adnate.<ref>{{cite book |last1=Hyatt, A. & Pilsbry, H. A. |title=Manual of conchology, structural and systematic, with illustrations of the species. Ser. 2, Pulmonata. Vol. 21: Achatinellidae (Amastrinae). |date=1910–1911 |publisher=Conchological Department, Academy of Natural Sciences |location=Philadelphia |page=240|url=https://www.biodiversitylibrary.org/page/23701752 |access-date=3 December 2024}} {{source-attribution}}</ref> | ||
| ==Distribution== | ==Distribution== | ||
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| * {{cite journal |last1=Cooke |first1=CM Jr. |title=Three new species of Amastra from Oahu |journal=Occasional Papers of the Bernice P. Bishop Museum of Polynesian Ethnology and Natural History |date=1908 |volume=3 |issue=2 |pages=215-216 |url=https://www.biodiversitylibrary.org/page/6503161 |access-date=12 December 2024}} | * {{cite journal |last1=Cooke |first1=CM Jr. |title=Three new species of Amastra from Oahu |journal=Occasional Papers of the Bernice P. Bishop Museum of Polynesian Ethnology and Natural History |date=1908 |volume=3 |issue=2 |pages=215-216 |url=https://www.biodiversitylibrary.org/page/6503161 |access-date=12 December 2024}} | ||
| {{Taxonbar|from=Q131437029}} | |||
| ] | ] | ||
Latest revision as of 09:04, 13 December 2024
Species of mollusc
| Amastra spaldingi | |
|---|---|
| |
| Shell of Amastra spaldingi (holotype) | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Amastridae |
| Genus: | Amastra |
| Species: | A. spaldingi |
| Binomial name | |
| Amastra spaldingi C. M. Cooke, 1908 | |
| Synonyms | |
|
Amastra (Metamastra) spaldingi E. A. C. M. Cooke, 1908 alternative representation | |
Amastra spaldingi is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
Description
The length of the shell attains 18.9 mm, its diameter 9.6 mm.
The shell is imperforate, dextral, cylindrically ovate, and somewhat thin. It is irregularly and faintly striated with growth lines, with the third whorl distinctly and diagonally striated. The third and fourth whorls feature a distinct spiral thread just above the sutures. The first three whorls are light brown with a yellowish tinge, while the lower three are uniformly dark resinous chestnut.
The spire is subcylindrical with slightly convex outlines and has a somewhat obtuse apex. The suture is simple and barely impressed. There are 6½ whorls, increasing somewhat regularly in size. The whorls of the protoconch are slightly convex, while the rest are flatly convex. The body whorl is cylindrical and tapers gradually towards the base.
The aperture is subpyriform, bluish on the interior, and only slightly oblique. The columella is nearly straight, barely twisted, with a basal columellar fold that is small, thin, oblique, and flexuous. The outer margin of the lip is regularly curved, erect, and thin, forming a slight angle with the base of the columella. The columellar margin is thin, appressed, and adnate.
Distribution
This species is endemic to Hawaii, occurring on Oahu island.
References
- Amastra spaldingi C. M. Cooke, 1908. 12 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. 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. Leiden: Backhuys Publishers. p. 106.
{{cite book}}: CS1 maint: multiple names: authors list (link)
External links
- Cooke, CM Jr. (1908). "Three new species of Amastra from Oahu". Occasional Papers of the Bernice P. Bishop Museum of Polynesian Ethnology and Natural History. 3 (2): 215–216. Retrieved 12 December 2024.
| Taxon identifiers | |
|---|---|
| Amastra spaldingi | |