Amphidromus columellaris

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
Amphidromus (Syndromus) columellarisMöllendorff, 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 columellarisMöllendorff, 1892
• Amphidromus columellaris gloriosusFulton, 1896

Description

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]

Distribution

Amphidromus sowerbyi was found on Lesser Sunda Islands and Tanimbar Islands Indonesia.

References

1. "Amphidromus columellarisMöllendorff, 1892". WoRMS. World Register of Marine Species . Retrieved 16 April 2025.
2. Möllendorff, O.F. von (1892). "Die Landschneckenfauna der Tenimber-Inseln (Timorlaut)". Nachrichtsblatt der deutschen malakozoologischen Gesellschaft. 24 (5–6): 98. Retrieved 16 April 2025. This article incorporates text from this source, which is in the public domain .

External links

• Tryon, George W., (George Washington), - Baker, H. Burrington (Horace Burrington), - Cooke, C. Montague (Charles Montague), - Hyatt, Alpheus, - Pilsbry, Henry Augustus (1900). Manual of conchology, structural and systematic : with illustrations of the species. Second series, Pulmonata (214 ed.). Philadelphia: published by the authors. Retrieved 15 May 2025. This article incorporates text from this source, which is in the public domain .
• Fulton Hugh C. (1896a) A list of the species of Amphidromus Albers, with critical notes and descriptions of some hitherto undescribed species and varieties. Annals and Magazine of Natural History, Series 6 vol. 17: p. 79 This article incorporates text from this source, which is in the public domain .