This shark was formally described as a new species in a 1975 volume of the scientific journal Memoirs of the Faculty of Fisheries, Hokkaido University by Kazuhiro Nakaya, who gave it the specific epithet nipponensis from Nippon (Japan).
According to their legends, the Iron Masters fled the destruction of their homeland of Nippon in vast floating cities that drifted into Antarctic waters and then up into the Atlantic, eventually landing on the Eastern Seaboard of the former United States.
Zipang is an antiquated name for Japan.
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In the Korean MMORPG MapleStory, Yotsuba's hairstyle can be obtained in a salon located in a town called Zipangu (an archaic name for Japan).