Alcadia pusilla

Alcadia pusilla
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Neritimorpha
Order:	Cycloneritida
Family:	Helicinidae
Genus:	Alcadia
Species:	A. pusilla
Binomial name
	Alcadia pusilla; (C. B. Adams, 1850)
Synonyms
	Alcadia (Palliata) pusilla (C. B. Adams, 1850) alternative representation; Alcadia pusilla var. intermedia Pilsbry, 1909 (junior homonym of Helicina...); Helicina pusilla C. B. Adams, 1850 (original combination);

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

Description

(Original description) The shell has a depressed globular shape. It has a horn color that can appear brownish. It features extremely fine growth striae and a subacute apex. The spire is moderately elevated with curvilinear outlines. The shell has more than four slightly convex whorls with a distinct suture. The aperture is rather large, well-rounded on the right side, and somewhat sinuate on the left side. The outer lip is thin, moderately dilated, and well-reflected, with a deep curved incision similar to that of Alcadia brownii palliata (C. B. Adams, 1849), located just below the columella, whose end is sickle-shaped. This species is much less discoidal than Alcadia macilenta (C. B. Adams, 1849). ^[2]

Distribution

This species occurs in Jamaica.^[1]

References

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

External links

Pilsbry, H.A. (1909). "Alcadia pusilla intermedia n. var". The Nautilus. 22 (9): 96.
Conchology.be: image
Biolib.cz: image

[WoRMS-1] Alcadia pusilla (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. This article incorporates text from this source, which is in the public domain.

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