Alcadia sericea

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

Alcadia sericea
Shell of Alcadia sericea (holotype)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Neritimorpha
Order:	Cycloneritida
Family:	Helicinidae
Genus:	Alcadia
Species:	A. sericea
Binomial name
Alcadia sericea (Drouët, 1859)
Synonyms[1]
Helicina (Oligyra) sericea Drouët, 1859 superseded combination Helicina sericea Drouët, 1859 (original combination)

Description

The height of the shell attains 5.5 mm (0.22 in), its greatest diameter 6 mm (0.24 in). ^[2]

(Original description in Latin) The globular-trochiform shell is thin, smooth and shiny below and slightly striated above. It is somewhat translucent, silky, and horn-reddish. It has 5 whorls, with the body whorl expanded. The aperture is hemispherical, and the peristome is reflexed, either white or pink, and somewhat sinuous at the base. The operculum is solid, somewhat opaque, and gray. ^[3]

Distribution

This species occurs in French Guiana and Suriname. ^[1]