| Amphidromus niasensis | |
|---|---|
 | |
| Shell of Amphidromus niasensis (lectotype at the Natural History Museum, London) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Camaenidae |
| Genus: | Amphidromus |
| Species: | A. niasensis |
| Binomial name | |
| Amphidromus niasensis Fulton, 1907 | |
Amphidromus niasensis is a species of air-breathing tree snail, an arboreal gastropod mollusk in the family Camaenidae. [1]
Amphidromus cognatus is large, with a shell length ranging from 30 mm (1.2 in) and a diameter of 17 mm (0.67 in).
(Original description) The sinistral shell is moderately thin and finely obliquely striated. The protoconch is semitransparent and waxy. The teleoconch has a light reddish base ornamented by moderately broad oblique stripes, bisected medially by a narrow spiral band of a paler hue. The base of the body whorl exhibits a moderately broad dark brown band just below the periphery and a narrower dark brown band further ventrally, separated by a yellow band. The umbilical region is reddish. The shell contains six convex whorls, increasing rather slowly. The aperture displays external markings internally. The peristome is slightly expanded and is flesh-colored. The columella is vertical, flesh-colored, rounded and slightly expanded at its insertion. [2]
Amphidromus niasensis was found on Nias Island, off the werst coast of Sumatra.
This article incorporates text from this source, which is in the public domain .{{cite journal}}: CS1 maint: multiple names: authors list (link)