Amastra sericea
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Amastridae
Genus:	Amastra
Species:	A. sericea
Binomial name
Amastra sericea (L. Pfeiffer, 1859)
Synonyms
Achatinella (Laminella) sericea L. Pfeiffer, 1859 superseded combination Amastra (Metamastra) sericea (L. Pfeiffer, 1859) alternative representation

Amastra sericea is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.^[1]

Subspecies

• Amastra sericea anaglypta C. M. Cooke, 1917
• Amastra sericea sericea (L. Pfeiffer, 1859)

The length of the shell attains 17 mm, its diameter 9⅓ mm

The shell is imperforate, dextral, ovate-conic, and solid, with a surface characterized by coarse striation and minute granulate decussation from spiral striae, giving it a silky texture. Its coloration is deep brown, with a spire that is convexly conic and rather acute.

The shell comprises nearly six convex whorls, paler at the sutures. The body whorl constitutes two-fifths of the total length and is whitish around the columella. The columella features a short, compressed, and oblique lamina.

The aperture is oblique and elliptical. The peristome is simple and unexpanded, with the right margin forming a nearly semicircular curve and connecting angularly to the calloused columella. ^[2]

This rare species is endemic to Hawaii, occurring on Oahu island.

• 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)

• Pfeiffer, L. (1859). "Descriptions of eight new species of Achatinella, from Mr. Cuming's collection". Proceedings of the Zoological Society of London. 27 (385): 31. Retrieved 28 December 2024.