Magallana sikamea (Amemiya, 1928)

Kumamoto oyster

Taxonomy & Nomenclature

Synonyms: Ostrea gigas var. sikamea Amemiya, 1928; Crassostrea sikamea (Amemiya, 1928); Crassostrea (Magallana) sikamea (Amemiya, 1928)

Conservation Status

Rediscovered in: 1996 [by implication] (Hedgecock et al., 1999)

Was considered possibly Extinct in the Wild by (Banks et al., 1994 fide Carlton et al., 1999).

Distribution

Japan

Biology & Ecology

Hypodigm

Media

References

Original scientific description:

Amemiya, I. (1928). Ecological studies of Japanese oysters with special reference to the salinity of their habitats. J. Coll. Agric. Imp. Univ. Tokyo 9: 333-382.

Other references:

Banks, M. A., McGoldrick, D. J., Borgeson, W. and Hedgecock, D. (1994). Gametic incompatibility and genetic divergence of Pacific and Kumamoto oysters, Crassostrea gigas and C. sikamea. Mar. Biol. 121: 127-135.

Carlton, James T., Geller, J. B., Reaka-Kudla, M. L. and Norse, E. A. (1999). Historical extinctions in the sea. Annual Review of Ecology and Systematics 30: 525-538.

Hedgecock, D., Li, G., Banks, M. A. and Kain, Z. (1999). Occurrence of the Kumamoto oyster Crassostrea sikamea in the Ariake Sea, Japan. Mar. Biol. 133: 65-68.

MolluscaBase eds. (2025). MolluscaBase. Magallana sikamea (Amemiya, 1928). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=836041 on 2025-04-09

Salvi D. and Mariottini P. (2017 [nomenclatural availability: 2016]). Molecular taxonomy in 2D: a novel ITS2 rRNA sequence-structure approach guides the description of the oysters' subfamily Saccostreinae and the genus Magallana (Bivalvia: Ostreidae). Zoological Journal of the Linnean Society 179(2): 263-276. https://doi.org/10.1111/zoj.12455

Wang, Haiyan et al. (2013). Occurrence and Distribution of Crassostrea sikamea (Amemiya 1928) in China. Journal of Shellfish Research 32(2): 439-446. [Abstract]

https://extinctanimals.proboards.com/thread/23854/crassostrea-sikamea

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