Amastra cylindrica

Amastra cylindrica is a species of land snail, a terrestrial pulmonate gastropod mollusc in the Amastridae family.^[2]

Amastra cylindrica
Conservation status
Critically Endangered  (IUCN 2.3)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Amastridae
Genus:	Amastra
Species:	A. cylindrica
Binomial name
Amastra cylindrica (Newcomb, 1854)
Synonyms
Achatinella (Laminella) grossa L. Pfeiffer, 1856 junior subjective synonym Achatinella cylindrica Newcomb, 1854 superseded combination Achatinella intermedia Newcomb, 1854 junior subjective synonym Achatinella porphyrea Newcomb, 1854 junior subjective synonym Amastra (Paramastra) cylindrica (Newcomb, 1854) · alternative representation Amastra conicospira E. A. Smith, 1873 junior subjective synonym

Description

(Original description) The shell is dextral, elongately cylindrical, tapering to a pointed summit. It consists of seven slightly rounded whorls separated by a moderately distinct suture. The aperture is oblong-ovate, and the columella ends in a flexuous tooth. The shell's surface is marked by strong longitudinal striations. Its coloration is of a light horn tone, encircled by numerous narrow brown bands.^[3]

Distribution

This species is endemic to Hawaii and occurs on Oahu Island.^[1]