Otukaia Explained
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, lacking an umbilicus. Their spiral whorls are flat to slightly convex, with the first three whorls sometimes displaying sculpture that may persist on later whorls. They possess a rachidian radula. These snails can be found worldwide in deep water.
Some authors consider Otukaia Ikebe, 1942 a subgenus of Calliostoma Swainson, 1840.[1]
The (sub)generic name Otukaia honors Japanese malacologist Yanosuke Otuka (1903–1950), who described the type species Calliostoma kiheiziebisu Otuka, 1939.[2]
Species
The following species are accepted in the genus Otukaia:[3]
- Species brought into synonymy:
- Otukaia blacki Dell, 1956, accepted as Maurea alertae (B. A. Marshall, 1995)[3]
- Otukaia chilena (Rehder, 1971), accepted as Maurea chilena (Rehder, 1971)
- Otukaia crustulum Vilvens & Sellanes, 2006,[5] accepted as Calliotropis crustulum (Vilvens & Sellanes, 2006)
- Otukaia delli McLean & Andrade, 1982, accepted as Maurea delli (McLean & Andrade, 1982)
- Otukaia eltanini Dell, 1990, accepted as Maurea eltanini (Dell, 1990)
- Otukaia rossica (Dall, 1919), accepted as Margarites rossicus Dall, 1919
Notes and References
- 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
- 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.
- Otukaia. 456482. 2019-01-09.
- Web site: Gastropods by Eddie Hardy | Conchology . www.gastropods.com . 16 June 2010.
- Vilvens & Sellanes (2006). The Nautilus 120(1): 15-20.
