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Occurences of reef manta ray, Manta alfredi, and giant manta ray, M. birostris, in Japan, examined by photographic records [in Japanese], Report of Japanese Society for Elasmobranch Studies, 46, 20–27
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Observations of mating behavior of the manta ray, Manta birostris, at the Ogasawara Islands, Japa. Ichthyological Research, 46(3), 289–296
DOI: 10.1007/BF02678515