Alcadia mammilla is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.[1]
| Alcadia mammilla | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Neritimorpha |
| Order: | Cycloneritida |
| Family: | Helicinidae |
| Genus: | Alcadia |
| Species: | A. mammilla
|
| Binomial name | |
| Alcadia mammilla Weinland, 1862
| |
| Synonyms[1] | |
| |
Description
editThe height of the shell attains 6.5 mm (0.26 in), its greatest diameter 7.5 mm (0.30 in).[citation needed]
(Original description in Latin) The conical shell is rather solid and slightly striated. it is scarcely shiny, with various marbling and banding in whitish and reddish hues. The spire has a convex-conical shape, ending in a pale apex. There are 5 somewhat convex whorls, with the body whorl deflected at the front and slightly flattened at the base. The columella is short and thread-like, ending at the base with a small denticle and emitting a thin callus. The aperture is oblique and somewhat triangular-semioval. The peristome is thin, with the right margin simple at the top, then dilated and expanded, featuring a distinct sinus at the base separated from the columellar tooth.[2]
Distribution
editReferences
edit- ^ a b c Alcadia mammilla Weinland, 1862. 3 August 2024. Retrieved through: World Register of Marine Species.
- ^ Weinland, D.F. (1862). "Diagnosen einiger neuen westindischen Landschnecken". Malakozoologische Blätter. 9: 86–91 194–199. Retrieved 4 August 2024.
This article incorporates text from this source, which is in the public domain.
Further reading
edit- Espinosa, J. A.; Robinson, D. G. (2021). "Annotated checklist of the terrestrial mollusks (Mollusca: Gastropoda) from Hispaniola Island". Novitates Caribaea. 17: 71–146.
- 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.