Amastra elongata

Amastra elongata
Amastra elongata shell
Conservation status
Extinct  (IUCN 2.3) [1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Amastridae
Genus:	Amastra
Species:	†A. elongata
Binomial name
†Amastra elongata Newcomb, 1853 [2]
Location of Oʻahu
Synonyms
Achatinella acutaNewcomb, 1854 junior subjective synonym Achatinella elongataNewcomb, 1853 superseded combination Amastra (Heteramastra) elongata(Newcomb, 1853) alternative representation

Amastra elongata is an extinct species of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Amastridae. ^[3]

Description

The shell is sinistral and sharply turreted, adorned with numerous well-defined longitudinal striae and covered by a brown epidermis. It consists of seven rounded whorls, with a deep and simple suture.

The aperture is ovate, and the columella bears a distinct plication. The outer lip is simple and unadorned. . ^[4]

Distribution

This species was endemic to Hawai, occurring on Oʻahu.

References

1. Mollusc Specialist Group (1996). "Amastra elongata". IUCN Red List of Threatened Species . 1996 e.T992A13100971. doi: 10.2305/IUCN.UK.1996.RLTS.T992A13100971.en . Retrieved 15 November 2021.
2. "WoRMS - World Register of Marine Species - Amastra elongata (Newcomb, 1853)". www.marinespecies.org. Retrieved 2024-11-19.
3. Amastra elongata (Newcomb, 1853) . 25 December 2024. Retrieved through: World Register of Marine Species .
4. 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. 230. Retrieved 2 December 2024. This article incorporates text from this source, which is in the public domain .

• Newcomb, W. (1854). "Descriptions of seventy·nine new species of Achatinella, (Swains.) a genus of pulmoniferous mollusks, in the collection of Hugh Cuming, Esq". Proceedings of the Zoological Society of London: 16.
• 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.

External links

• Newcomb, W. (1853). "Descriptions of new species of Achatinella from Sandwich Islands". Annals of the Lyceum of Natural History of New York. 6: 26.