Alcadia pusilla

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

Alcadia pusilla
Scientific classification
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[1]
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)

Description

The shell of adult snails 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]