Alycaeus
Genus of gastropods
From Wikipedia, the free encyclopedia
Alycaeus is a genus of small land snails with a gill and an operculum, terrestrial gastropod mollusks in the family Alycaeidae.[1]
| Alycaeus | |
|---|---|
| |
| Shell of Alycaeus goliath (holotype at MNHN, Paris) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Architaenioglossa |
| Superfamily: | Cyclophoroidea |
| Family: | Alycaeidae |
| Genus: | Alycaeus J. E. Gray, 1850 |
| Type species | |
| Cyclostoma gibbum Eydoux, 1838 | |
| Synonyms | |
| |
Description
(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]
Distribution
Species
Species within the genus Alycaeus include:
- Alycaeus conformis Fulton, 1902[4]
- Alycaeus eydouxi Venmans, 1956
- Alycaeus gibbosulus Stoliczka, 1872[4]
- Alycaeus goliath Páll-Gergely, 2023
- Alycaeus himalayae Aravind & Páll-Gergely, 2023
- Alycaeus jousseaumei Morgan, 1885[4]
- Alycaeus pyramidalis W. H. Benson, 1856
- Alycaeus rolfbrandti Maassen, 2006
- Alycaeus somwangi Dumrongrojwattana & Maassen, 2008
- Taxon inquirendum
- Alycaeus huberi Thach, 2018 (uncertain: debated synonym)
- Synonyms
- Alycaeus alticola Foon & Liew, 2017:[4] synonym of Stomacosmethis kapayanensis alticola (Foon & T.-S. Liew, 2017) (basionym)
- Alycaeus altispirus Möllendorff, 1902:[4] synonym of Stomacosmethis altispirus (Möllendorff, 1902) (unaccepted combination)
- Alycaeus balingensis Tomlin, 1948:[4] synonym of Stomacosmethis balingensis (Tomlin, 1948) (basionym)
- Alycaeus carinata Maassen, 2006:[4] synonym of Stomacosmethis carinatus (Maassen, 2006) (wrong gender agreement of specific epithet)
- Alycaeus charasensis Foon & Liew, 2017:[4] synonym of Stomacosmethis kapayanensis charasensis (Foon & T.-S. Liew, 2017) (basionym)
- Alycaeus clementsi Foon & Liew, 2017:[4] synonym of Stomacosmethis kelantanensis clementsi (Foon & T.-S. Liew, 2017) (basionym)
- Alycaeus (Dioryx) compactus Bavay & Dautzenberg, 1900: synonym of Dioryx compactus (Bavay & Dautzenberg, 1900) (original combination)
- Alycaeus costacrassa Foon & Liew, 2017:[4] synonym of Stomacosmethis kapayanensis costacrassa (Foon & T.-S. Liew, 2017) (basionym)
- Alycaeus expansus Foon & Liew, 2017:[4] synonym of Stomacosmethis kelantanensis expansus (Foon & T.-S. Liew, 2017) (basionym)
- Alycaeus galbanus Godwin-Austen, 1889: synonym of Stomacosmethis galbanus (Godwin-Austen, 1889) (original combination)
- Alycaeus globosus Adams, 1870: synonym of Pincerna globosus (H. Adams, 1871)
- Alycaeus hosei Godwin-Austen, 1889: synonym of Stomacosmethis hosei (Godwin-Austen, 1889)
- [lycaeus ikanensis Foon & Liew, 2017:[4] synonym of Stomacosmethis kapayanensis ikanensis (Foon & T.-S. Liew, 2017)
- Alycaeus kapayanensis Morgan, 1885:[4] synonym of Stomacosmethis kapayanensis (de Morgan, 1885)
- Alycaeus kelantanensis Sykes, 1902:[4] synonym of Stomacosmethis kelantanensis (Sykes, 1902)
- Alycaeus kurauensis Foon & Liew, 2017:[4] synonym of Stomacosmethis kapayanensis kurauensis (Foon & T.-S. Liew, 2017)
- Alycaeus liratulus Preston, 1907:[4] synonym of Pincerna liratulus (Preston, 1907)
- Alycaeus perakensis Crosse, 1879:[4] synonym of Stomacosmethis perakensis (Crosse, 1879)
- Alycaeus regalis Foon & Liew, 2017:[4] synonym of Stomacosmethis regalis (Foon & T.-S. Liew, 2017)
- Alycaues roebeleni Möllendorff, 1894:[4] synonym of Stomacosmethis roebeleni (Möllendorff, 1894)
- Alycaeus selangoriensis Foon & Liew, 2017:[4] synonym of Stomacosmethis kapayanensis selangoriensis (Foon & T.-S. Liew, 2017)
- Alycaeus senyumensis Foon & Liew, 2017:[4] synonym of Stomacosmethis senyumensis (Foon & T.-S. Liew, 2017)
- Alycaeus thieroti Morgan, 1885:[4] synonym of Pincerna thieroti (de Morgan, 1885)
- Alycaeus virgogravida Foon & Liew, 2017:[4] synonym of Stomacosmethis kapayanensis virgogravida (Foon & T.-S. Liew, 2017)
