Helicophanta ibaraoensis

Helicophanta ibaraoensis

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← Previous revision Revision as of 04:51, 20 April 2026
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(Original description) The shell is imperforate and possesses a globosely ovate shape. It is moderately solid and has a shining luster. The surface is sculpted with irregular, transverse, and rugose striations at the front, while the upper [[Whorl (mollusc)|whorl]]s are very finely granulated. These granules descend all the way to the base toward the rear of the shell. Its coloration is a yellowish-olive, encircled by numerous narrow, dark brown bands that merge and intensify in color as they approach the [[Aperture (mollusc)|aperture]] and the base.
(Original description) The shell is imperforate and possesses a globosely ovate shape. It is moderately solid and has a shining luster. The surface is sculpted with irregular, transverse, and rugose striations at the front, while the upper [[Whorl (mollusc)|whorl]]s are very finely granulated. These granules descend all the way to the base toward the rear of the shell. Its coloration is a yellowish-olive, encircled by numerous narrow, dark brown bands that merge and intensify in color as they approach the [[Aperture (mollusc)|aperture]] and the base.


The [[Spire (mollusc)|spire]] is flatly convex, terminating in a depressed [[Apex (mollusc)|apex]]. There are 3.5 whorls that increase rapidly in size, with the [[body whorl]] being particularly large and inflated. The aperture is oblique, large, and roundly ovate, exhibiting a pearly bluish-violet hue within. The [[Peristome (gastropod)|peristome]] is slightly thickened, with its margins united by a thick [[Callus (mollusc)|callus]], and the [[Columella (gastropod)|columella]] is smooth.{{cite journal |last1=Angas |first1=G.F. |title=Descriptions of two new species of Helix (Eurycratera) from S. E. Betsileo, Madagascar. |journal=roceedings of the Zoological Society of London. |date=1879 |page=729 |url=https://www.biodiversitylibrary.org/page/28521607#page/520/mode/1up |access-date=10 February 2026}} {{source-attribution}}
The [[Spire (mollusc)|spire]] is flatly convex, terminating in a depressed [[Apex (mollusc)|apex]]. There are 3.5 whorls that increase rapidly in size, with the [[body whorl]] being particularly large and inflated. The aperture is oblique, large, and roundly ovate, exhibiting a pearly bluish-violet hue within. The [[Peristome (gastropod)|peristome]] is slightly thickened, with its margins united by a thick [[Callus (mollusc)|callus]], and the [[Columella (gastropod)|columella]] is smooth.{{cite journal |last1=Angas |first1=G.F. |title=Descriptions of two new species of Helix (Eurycratera) from S. E. Betsileo, Madagascar |journal=Proceedings of the Zoological Society of London |date=1879 |page=729 |url=https://www.biodiversitylibrary.org/page/28521607#page/520/mode/1up |access-date=10 February 2026}} {{source-attribution}}


==Distribution==
==Distribution==