Allopeas gracile | |
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Live specimen of Allopeas gracile | |
Shell of Allopeas gracile (specimen at the Natural History Museum, London) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Order: | Stylommatophora |
Suborder: | Achatinina |
Superfamily: | Achatinoidea |
Family: | Achatinidae |
Genus: | Allopeas |
Species: | A. gracile |
Binomial name | |
Allopeas gracile (Hutton, 1834) | |
Synonyms | |
See list |
Allopeas gracile, common name the graceful awlsnail, [1] is a species of small, tropical, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Achatinidae. [2]
The length of the shell varies between 9.8 mm and 12.1 mm; its diameter between 2.9 mm and 3.3 mm.
(Original description) Animal: The animal is equipped with four retractile tentacles, with the upper pair being longer and bearing eyes at their tips. The foot is elongated, rather rounded at the rear, and truncated at the front. Its color is a pale yellowish hue.
Shell: The shell is transparent, thin, and rather colorless, with a spire that tapers gradually. It consists of 12 whorls, with the body whorl equal in size to the two preceding whorls. The aperture is semi-ovate, longer than it is wide. The columellar lip is straight and slightly reflected, while the outer lip is finely edged. [3]
(Recent description) The shell is conically elongated and slender, with a translucent, glossy surface of pale yellowish hue. It comprises 7½ to 8 whorls, tapering gradually towards a blunt apex. The protoconch consists of approximately two smooth whorls, while the subsequent whorls are adorned with obliquely arranged, fine, and densely packed riblets. The spire tapers evenly, and the whorls are flatly convex with a wide, shallow suture. The last whorl is the largest. The aperture is tall and oblong, with a thin peristome. The columellar margin near the umbilicus is slightly expanded, and the columella is straight. The umbilicus is narrowly open. [4]
Allopeas gracile occurs throughout the tropics and subtropics worldwide. [5]
It is also found living in greenhouses in other areas, as a "hothouse exotic".
Zebrina is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Enidae.
Placostylus, or flax snails, are a genus of very large, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Bothriembryontidae.
Assiminea is a genus of minute, salt-tolerant snails with an operculum, aquatic gastropod mollusks, or micromollusks, in the family Assimineidae.
Helicostyla is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Helicostylinae of the family Camaenidae. Helicostyla is the type genus of the subfamily Helicostylinae.
Lamprocystis is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Microcystinae in the family Euconulidae, the hive snails.
Omphalotropis is a genus of minute salt marsh snails with an operculum, terrestrial gastropod mollusks in the subfamily Omphalotropidinae of the family Assimineidae.
Subulina is a genus of small tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Achatinidae.
Truncatella is a genus of very small land snails with an operculum, terrestrial gastropod mollusks in the family Truncatellidae. These small and minute snails live on land, very close to seawater. They walk with a strange looping action, and the adults have truncated shells. Many of the species are small enough to be considered micromollusks.
Subulininae is a subfamily of small tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Achatinidae.
Allopeas, common name the "awl snails", is a genus of small, tropical, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Achatinidae.
Allopeas clavulinum, common name the spike awlsnail, is a species of small, tropical, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Achatinidae.
Pupa is a genus of small sea snails, marine gastropod molluscs in the family Acteonidae.
Plekocheilus is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Amphibulimidae.
Melampus is a genus of small air-breathing salt marsh snails, pulmonate gastropod mollusks in the family Ellobiidae.
Paropeas achatinaceum is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Achatinidae.
Aclis is a genus of small sea snails, marine gastropod mollusks in the family Eulimidae.
This article incorporates CC-BY-3.0 text from the reference. [5]
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