Alcadia microstoma
Species of gastropod
From Wikipedia, the free encyclopedia
Alcadia microstoma is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.[1]
_-_Helicinidae_-_Mollusc_shell.jpeg)
| Alcadia microstoma | |
|---|---|
| |
| Shell of Alcadia microstoma (specimen at Naturalis Biodiversity Center) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Cycloneritida |
| Family: | Helicinidae |
| Genus: | Alcadia |
| Species: | A. microstoma |
| Binomial name | |
| Alcadia microstoma (C. B. Adams, 1851) | |
| Synonyms[1] | |
| |
Description
(Original description) The shell is globose-conic and moderately thickened, with a brown coloration that shades off to a smoky white along the suture and the periphery of the body whorl. It features rather light growth striae, interspersed with a few spiral series of punctures. The apex is obtuse, and the spire's outlines are variably curvilinear. The shell has slightly fewer than five moderately convex whorls with a well-impressed suture. The body whorl is subplanulate beneath. The aperture is semi-elliptical, compressed above and below, and laterally dilated. The outer lip is sinuate, well-expanded, and reflected except at the extremities, with a slit that is rather wide but not very deep. [2]
