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'''''Otukaia''''' is a [[genus]] of medium-sized sea [[snail]]s, [[Marine (ocean)|marine]] [[gastropod]] [[mollusc]]s in the [[family (biology)|family]] [[Calliostomatidae]], the top shells. ''Otukaia'' has long been considered a subspecies of [[Calliostoma]] and is still treated as such by many authorities.
'''''Otukaia''''' is a [[genus]] of medium-sized [[sea snail]]s, [[Marine (ocean)|marine]] [[gastropod]] [[mollusc]]s in the [[family (biology)|family]] [[Calliostomatidae]], the top shells. ''Otukaia'' has long been considered a subspecies 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 (mollusc)|umbilicus]]. Their spiral [[Whorl (mollusc)|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 world-wide in deep water.
Snails in this genus are characterized by their relatively large, silky-white, thin shell. They lack an [[Umbilicus (mollusc)|umbilicus]]. Their spiral [[Whorl (mollusc)|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 world-wide in deep water.
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Species in the genus ''Otukaia'' include:<ref>[[Arthur William Baden Powell|Powell A. W. B.]], ''New Zealand Mollusca'', [[HarperCollins|William Collins Publishers Ltd]], Auckland, New Zealand 1979 ISBN 0-00-216906-1</ref><ref>[http://www.molluscs.otago.ac.nz/index.html NZ Mollusca]</ref>
Species in the genus ''Otukaia'' include:<ref>[[Arthur William Baden Powell|Powell A. W. B.]], ''New Zealand Mollusca'', [[HarperCollins|William Collins Publishers Ltd]], Auckland, New Zealand 1979 ISBN 0-00-216906-1</ref><ref>[http://www.molluscs.otago.ac.nz/index.html NZ Mollusca]</ref>
* ''[[Otukaia blacki]]'' Dell, 1956
* ''[[Otukaia blacki]]'' Dell, 1956
* ''[[Otukaia crustulum]]'' Vilvens & Sellanes, 2006<ref>{{WRMS source|141106|Vilvens & Sellanes (2006). The Nautilus 120 (1) : 15-20|22 April 2010}}</ref>
* ''[[Otukaia crustulum]]'' Vilvens & Sellanes, 2006<ref>Vilvens & Sellanes (2006). ''[[The Nautilus (journal)|The Nautilus]]'' '''120'''(1): 15-20.</ref>
* ''[[Otukaia eltanini]]''
* ''[[Otukaia eltanini]]''
* ''[[Otukaia ikukoae]]'' Sakurai, 1994 - synonym : ''[[Calliostoma ikukoae]]'' Sakurai, 1994
* ''[[Otukaia kiheiziebisu]]'' Otuka, 1939 - synonym: ''Calliostoma kiheiziebisu'' Otuka, 1939. - the type species of the subgenus ''Otukaia''.<ref>http://www.gastropods.com/Taxon_pages/Family_CALLIOSTOMATIDAE_CALLIOSTOMATINAE.shtml accessed 16 June 2010</ref>
* ''[[Otukaia kiheiziebisu]]'' Otuka, 1939 - synonym: ''Calliostoma kiheiziebisu'' Otuka, 1939. - the type species of the subgenus ''Otukaia''.<ref>http://www.gastropods.com/Taxon_pages/Family_CALLIOSTOMATIDAE_CALLIOSTOMATINAE.shtml accessed 16 June 2010</ref>
* ''[[Otukaia otukai]]'' Ikebe, 1942
* ''[[Otukaia otukai]]'' Ikebe, 1942
* ''[[Otukaia rossica]]'' (Dall, 1919) - Russian margarite
* ''[[Otukaia rossica]]'' (Dall, 1919) - Russian margarite

Synonyms:
* ''Otukaia ikukoae'' Sakurai, 1994 is a synonym of ''[[Calliostoma ikukoae]]'' Sakurai, 1994<ref>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</ref>


==References==
==References==

Revision as of 21:48, 24 April 2011

Otukaia
Drawing of the 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]
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 subspecies 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 world-wide in deep water.

Some authors use Otukaia Ikebe, 1942 as a subgenus in Calliostoma Swainson, 1840.[2]

The (sub)generic name Otukaia is named 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]

Synonyms:

References

  1. ^ Ikebe (1941) Venus 11: 60; Ikebe (1942) Jap. J. geol. geogr. 18(4): 277.
  2. ^ 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
  3. ^ Template:Jp icon Template:En icon 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.
  4. ^ Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
  5. ^ NZ Mollusca
  6. ^ Vilvens & Sellanes (2006). The Nautilus 120(1): 15-20.
  7. ^ http://www.gastropods.com/Taxon_pages/Family_CALLIOSTOMATIDAE_CALLIOSTOMATINAE.shtml accessed 16 June 2010
  8. ^ 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


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