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Alcadia microstoma

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Alcadia microstoma
Shell of Alcadia microstoma (specimen at Naturalis Biodiversity Center)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Neritimorpha
Order: Cycloneritida
Family: Helicinidae
Genus: Alcadia
Species:
A. microstoma
Binomial name
Alcadia microstoma
(C. B. Adams, 1851)
Synonyms[1]
  • Alcadia (Palliata) microstoma (C. B. Adams, 1851) alternative representation
  • Helicina (Alcadia) microstoma C. B. Adams, 1851 superseded combination
  • Helicina microstoma C. B. Adams, 1851 (original combination)

Alcadia microstoma is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.[1]

Description

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(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]

Distribution

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This species occurs in Jamaica.[1]

References

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  1. ^ a b c Alcadia microstoma (C. B. Adams, 1851). 30 July 2024. Retrieved through: World Register of Marine Species.
  2. ^ Adams, C.B. (1851). "Descriptions of new species and varieties of shells, which inhabit Jamaica". Contributions to Conchology. 8: 129–140. Retrieved 31 July 2024. Public Domain This article incorporates text from this source, which is in the public domain.
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