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.
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| - Otukaia (en)
- Otukaia (cs)
- Otukaia (nl)
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| - Otukaia je rod středně velkých mořských plžů z čeledi kotoučovitých (Trochidae). (cs)
- Otukaia is een geslacht van weekdieren uit de klasse van de Gastropoda (slakken). (nl)
- 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. (en)
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| - clade Vetigastropoda (en)
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| - Apertural view of the shell of Otukaia kiheiziebisu (en)
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| - Calliostoma kiheiziebisu (en)
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| - Otukaia je rod středně velkých mořských plžů z čeledi kotoučovitých (Trochidae). (cs)
- 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. The (sub)generic name Otukaia is in honor of the Japanese malacologist (1903–1950), who described the type species Calliostoma kiheiziebisu Otuka, 1939. (en)
- Otukaia is een geslacht van weekdieren uit de klasse van de Gastropoda (slakken). (nl)
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