Otukaia
| Otukaia | |
|---|---|
 | |
| Apertural view of the shell of Otukaia kiheiziebisu | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Vetigastropoda |
| Superfamily: | Trochoidea |
| Family: | Calliostomatidae |
| Genus: | Otukaia Ikebe, 1942[1] |
| Type species | |
| Calliostoma kiheiziebisu Otuka, 1939 | |
| Species | |
|
See text | |
Otukaia is a genus of medium-sized sea snails, marine gastropod molluscs in the family Calliostomatidae, the top shells. Otukaia has long been considered a subgenus of Calliostoma and is still treated as such by many authorities.
Snails in this genus are characterized by their relatively large, silky-white, thin shell. They lack an umbilicus. Their spiral whorls are flat to slightly convex. The first three spiral cords can show some sculpture that may persist on later whorls. They have a rachidian radula. They can be found worldwide in deep water.
Some authors use Otukaia Ikebe, 1942 as a subgenus in Calliostoma Swainson, 1840.[2]
The (sub)generic name Otukaia is in honor of the Japanese malacologist Yanosuke Otuka (1903–1950), who described the type species Calliostoma kiheiziebisu Otuka, 1939.[3]
Species
Species in the genus Otukaia include:[4][5]
- Otukaia blacki Dell, 1956
- Otukaia chilena (Rehder, 1971)
- Otukaia crustulum Vilvens & Sellanes, 2006[6]
- Otukaia delli McLean & Andrade, 1982
- Otukaia eltanini Dell, 1990
- Otukaia kiheiziebisu Otuka, 1939 - synonym: Calliostoma kiheiziebisu Otuka, 1939. - the type species of the subgenus Otukaia.[7]
- Otukaia otukai Ikebe, 1942
- Otukaia rossica (Dall, 1919) - Russian margarite
Synonyms:
- Otukaia ikukoae Sakurai, 1994 is a synonym of Otukaia kiheiziebisu (Otuka, 1939)[8]
References
- ↑ Ikebe (1941) Venus 11: 60; Ikebe (1942) Jap. J. geol. geogr. 18(4): 277.
- ↑ WoRMS (2010). Otukaia Ikebe, 1942. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=456482 on 2010-04-22
- ↑ (Japanese) (English) Otuka Y. (1939). "日本産エビスガヒ屬の一新種 A new Calliostoma from Japan". Venus 9(1): 27–29. CiNii.
- ↑ Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
- ↑ NZ Mollusca
- ↑ Vilvens & Sellanes (2006). The Nautilus 120(1): 15-20.
- ↑ http://www.gastropods.com/Taxon_pages/Family_CALLIOSTOMATIDAE_CALLIOSTOMATINAE.shtml accessed 16 June 2010
- ↑ WoRMS (2010). Calliostoma ikukoae (Sakurai, 1994). In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=467203 on 2011-04-24