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Species Diversity
Abstract
A single specimen (31.6 mm standard length) of Plectranthias fourmanoiri Randall, 1980 , previously known from Christmas Island (western Indian Ocean) and from the Mariana Islands south to Indonesia and east to the Pitcairn Islands (Pacific Ocean), was collected from Yoron-jima island, Ryukyu Islands, Japan. A full description is given and comparisons made. The specimen represents the first record of P. fourmanoiri from Japan and northernmost record of the species.
We are especially grateful to T. Takeshita (Yoron Diving Service) and K. Nakanishi (Diving Service Aoirokujira) for their kind assistance while collecting the specimen. We also appreciate the assistance of Y. Haraguchi (KAUM) and other volunteers and students of KAUM. This study was supported in part by; Grant-in-Aid for JSPS Fellows (DC2: 28-9608) to the first author; JSPS KAKENHI Grant Numbers JP26241027, JP24370041, JP23580259, and JP26450265; the JSPS Core-to-Core Program, “Research and Education Network on Southeast Asian Coastal Ecosystems”; the “Coastal Area Capability Enhancement in Southeast Asia Project” of the Research Institute for Humanity and Nature, Kyoto, Japan; the “Biological Properties of Biodiversity Hotspots in Japan” project of the National Museum of Nature and Science, Tsukuba, Japan; and “Establishment of Research and Education Network on Biodiversity and Its Conservation in the Satsunan Islands” project of Kagoshima University adopted by the Ministry of Education, Culture, Sports, Science and Technology, Japan.
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