Amphidromus columellaris
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| Amphidromus columellaris | |
|---|---|
 | |
| Shell of Amphidromus columellaris gloriosus (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. columellaris |
| Binomial name | |
| Amphidromus columellaris Möllendorff, 1892 | |
| Synonyms | |
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Amphidromus (Syndromus) columellaris Möllendorff, 1892 alternative representation | |
Amphidromus columellaris is a species of air-breathing tree snail, an arboreal gastropod mollusk in the family Camaenidae.[1]
- Subspecies
- Amphidromus columellaris columellaris Möllendorff, 1892
- Amphidromus columellaris gloriosus Fulton, 1896
Amphidromus webbi is large, with a shell length ranging from 32.5 mm (1.28 in) and a diameter of 14.1 mm (0.56 in).
(Original description in Latin) The sinistral shell is narrowly perforate, slenderly conico-oblong, somewhat solid and very lightly striate. it is glossy, pale yellow, painted with rather broad, sometimes interrupted green streaks, brownish above, with 3 rosy bands, one at the suture, another below the periphery, the third at the umbilical region, often surrounded by other green, more rarely brown, bands.
The spire is turreted-conical, with a rounded, blackish apex. The shell contains 7 whorls. These are rather flat, slowly increasing, separated by an appressed, white-margined suture, the body whorl slightly ascending anteriorly. The aperture is slightly oblique, narrow and somewhat ear-shaped. The peristome is slightly expanded, white-lipped internally, with the margins joined by a thin, translucent callus. The columella is very spirally twisted and almost revolute towards the perforation.[2]
