| Ampelita bizonalis | |
|---|---|
 | |
| Shell of Ampelita bizonalis (specimen at the Swedish Museum of Natural History) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Acavidae |
| Genus: | Ampelita |
| Species: | A. bizonalis |
| Binomial name | |
| Ampelita bizonalis Odhner, 1919 | |
Ampelita bizonalis is a species of tropical air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Acavidae. [1]
The height of the shell attains 17 mm, its diameter 36 mm.
(Original description in French) The shell is very depressed, with a wide, perspective umbilicus. Its somewhat shiny surface is sculpted with prominent, irregular growth lines and is microscopically rough. Five flattened whorls are separated by a fine suture. The body whorl is almost angular at the periphery, significantly widened, and descends abruptly towards the oval aperture. The upper lip is straight, sharp, and barely reflected; the outer lip and especially the lower lip are well reflected and sinuous as they approach the nearly straight columella. A thin layer of callus connects the lips across the inner wall.
The shell is dark brown towards the periphery, becoming a lighter yellowish-brown on the upper whorls. A whitish line marks the suture. A narrow tawny band appears at the body whorl's angle, and a wider band encircles the umbilicus, which is dark brown within. The lower part of the aperture is chocolate-colored with a white layer, the reflected lip white below, and the rest brownish. [2]
This species is endemic to Madagascar.
This article incorporates text from this source, which is in the public domain .{{cite journal}}: CS1 maint: multiple names: authors list (link)