Alcadia dubiosa

Alcadia dubiosa
Shell of Alcadia dubiosa (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. dubiosa
Binomial name
Alcadia dubiosa
(C. B. Adams, 1850)
Synonyms[1]
  • Alcadia (Hjalmarsona) dubiosa (C. B. Adams, 1850) alternative representation
  • Helicina (Oligyra) dubiosa (C. B. Adams, 1850) superseded combination
  • Helicina dubiosa C. B. Adams, 1850 (original combination)
  • Helicina dubiosa var. intermedia C. B. Adams, 1850 (variety)

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

Description

The greatest diameter of the shell attains 7.6 mm.

(Original description) The shell is globose-conic and shining, with a reddish-brown coloration. The outer lip and callus are yellowish-white. It features extremely fine growth striae and very lightly impressed microscopic spiral striae. The apex is subacute, and the spire is well elevated with slightly convex outlines. The shell consists of four and a half rather convex whorls with a well-impressed suture. The aperture is rather large and semicircular, with a barely perceptible or absent notch at the base of the columella. The outer lip is moderately reflected and thickened. [2]

Distribution

This species occurs in Jamaica.[1]

References

  1. ^ a b c Alcadia dubiosa (C. B. Adams, 1850). 31 July 2024. Retrieved through: World Register of Marine Species.
  2. ^ Adams, C.B. (1850). "Descriptions of supposed new species of land shells which inhabit Jamaica". Contributions to Conchology. 6: 90–98. Public Domain This article incorporates text from this source, which is in the public domain.