| Alycaeus | |
|---|---|
 | |
| Shell of Alycaeus goliath (holotype at MNHN, Paris) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Architaenioglossa |
| Superfamily: | Cyclophoroidea |
| Family: | Alycaeidae |
| Genus: | Alycaeus J. E. Gray, 1850 |
| Type species | |
| Cyclostoma gibbumEydoux, 1838 | |
| Synonyms | |
| |
Alycaeus is a genus of small land snails with a gill and an operculum, terrestrial gastropod mollusks in the family Alycaeidae. [1]
(Original description) The operculum is horny with multiple whorls. The conical shell has a regular spire. The body whorl is distorted and compressed and significantly contracted before the aperture. The aperture is circular, with a regularly reflexed peristome. [2]
The protoconch sculpture is smooth to obliquely striated. The diameter of the shell varies between 8 mm and 15 mm. The central tooth of the radula consists of five broad cusps with the central cusp blunt. [3]
There are nine recognized species of Alycaeus in Peninsular Malaysia. [4]
Species within the genus Alycaeus include:
Dicharax is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Alycaeidae.
Chamalycaeus is a genus of tropical land snails with an operculum, terrestrial gastropod mollusks in the family Alycaeidae.
Diplommatina is a genus of land snails with an operculum, terrestrial gastropod mollusks in the family Diplommatinidae.
Pupina is a genus of land snails with an operculum, terrestrial gastropod molluscs in the subfamily Pupillinae of the family Pupinidae.
Plectopylidae is a taxonomic family of large air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Plectopyloidea.
Alycaeidae is a taxonomic family of small to large tropical land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.
Sinoennea is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Diapheridae.
Hemiplecta is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Ariophantinae of the family Ariophantidae.
Dioryx is a genus of air-breathing land snails in the family Alycaeidae. It was formerly considered a subgenus of Alycaeus.
Metalycaeus is a genus of tropical land snails with an operculum, terrestrial gastropod mollusks in the family Alycaeidae.
Microcystina is a large genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Macrochlamydinae of the family Ariophantidae.
Pincerna is a genus of air-breathing land snails in the family Alycaeidae.
Pseudopomatias is a genus of land snails in the subfamily Pupinellinae of the family Pupinidae in the superfamily Cyclophoroidea.
Alycaeus conformis is a species of small land snails with a gill and an operculum, terrestrial gastropod mollusks in the family Alycaeidae.
Alycaeus gibbosulus is a species of small land snails with a gill and an operculum, terrestrial gastropod mollusks in the family Alycaeidae.
Alycaeus jousseaumei is a species of small land snails with a gill and an operculum, terrestrial gastropod mollusks in the family Alycaeidae.
Alycaeus rolfbrandti is a species of small land snails with a gill and an operculum, terrestrial gastropod mollusks in the family Alycaeidae.
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