Alcadia rufa
Species of gastropod
From Wikipedia, the free encyclopedia
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)
| Alcadia rufa | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Cycloneritida |
| Family: | Helicinidae |
| Genus: | Alcadia |
| Species: | A. rufa |
| Binomial name | |
| Alcadia rufa (Pfeiffer, 1857) | |
| Synonyms[1] | |
|
Helicina rufa L. Pfeiffer, 1857 (original combination) | |
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]