Alcadia rufa

Alcadia rufa
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Neritimorpha
Order:	Cycloneritida
Family:	Helicinidae
Genus:	Alcadia
Species:	A. rufa
Binomial name
Alcadia rufa (Pfeiffer, 1857)
Synonyms [1]
Helicina rufaL. Pfeiffer, 1857 (original combination)

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

Subspecies

• Alcadia rufa rufa(L. Pfeiffer, 1857)
• Alcadia rufa salleana(L. Pfeiffer, 1854)

Description

The height of the shell attains 6.7 mm, its greatest diameter 13 mm.

(Original description in Latin) The shell has a somewhat conoidal-depressed shape. It is moderately solid, slightly wrinkled-striated and punctuated, shiny, and reddish. The spire is somewhat conoidal-convex with a fine apex. The shell consists of 4 whorls. The upper whorls are rather flat, while the body whorl is broad, depressed, and somewhat rounded at the periphery. The aperture is diagonal and broadly semi-oval. The columella descends vertically from the penultimate whorl, is slightly curved, and ends anteriorly in a tubercle, emitting a somewhat granular, circumscribed basal callus. The peristome is shortly expanded with a white border. The operculum is of the same color. ^[2]

Distribution

This species lives in Haiti. ^[3]

References

1. Alcadia rufa (L. Pfeiffer, 1857) . 6 August 2024. Retrieved through: World Register of Marine Species .
2. Pfeiffer, L. (1857). "Descriptions of thirty-three new species of land-shells, from the collection of H. Cuming, Esq". Proceedings of the Zoological Society of London. 24 (325). Retrieved 6 August 2024.
3. Espinosa, J. A. & Robinson, D. G (2021). "Annotated checklist of the terrestrial mollusks (Mollusca: Gastropoda) from Hispaniola Island". Novitates Caribaea. 17 (17): 71–146. doi: 10.33800/nc.vi17.250 .

• Richling, I. & Glaubrecht, M. (2008). "The types of Neotropical Helicinidae (Mollusca, Gastropoda, Neritopsina) in the Malacological Collection of the Museum für Naturkunde Berlin: an annotated catalogue, with emphasis on Cuban land snails". Zoosystematics and Evolution. 84 (2): 265–310. doi:10.1002/zoos.200800011.