The Iwagaki oyster (Magallana nippona), is an oyster native to Japan. It was first described in 1934.
Etymology The genus Magallana is named for the Portuguese explorer Ferdinand Magellan and its specific epithet nippona is for "Japanese".Definition of giga at dictionary.com. It was previously placed in the genus Crassostrea; from the Latin crass meaning "thick",Definition of crass at dictionary.com. ostrea meaning "oyster",Definition of ostrea at dictionary.com. and Crassostrea nippona is considered by part of the scientific community to be the proper denomination as an accepted alternative in WoRMS,
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