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Species Diversity
Abstract
We describe a new capitellid species, Mastobranchus uru sp. nov., from a tidal flat on Iriomote Island, Okinawa, southern Japan. This species differs from its three congeners in having capillary chaetae only on the notopodia in chaetiger 1 and in the number and arrangement of teeth on hooks. We also provide for this new species a barcode nucleotide sequence from the mitochondrial 16S rRNA gene.
We thank the staff of the Iriomote Station, University of the Ryukyus for providing laboratory facilities; Professor Matthew H. Dick for critically reviewing the manuscript; Dr. Tohru Naruse, Dr. Keiichi Kakui, Dr. Hiroshi Yamasaki, Mr. Naoto Jimi, and Mr. Yuki Tanabe for help in collecting specimens; two anonymous reviewers for constructive comments; and the members of Biodiversity I Laboratory (Department of Natural History Sciences, Hokkaido University) for support in various ways. This work was supported by the Tropical Research Center, University of the Ryukyus (as Collaborative Research, FY 2014); JSPS KAKENHI Grant Number JP16J00388; the Research Institute of Marine Invertebrates (FY2013); and the Fujiwara Natural History Public Incorporated Foundation (FY2015).
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