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      Review of the mudflat varunid crab genus Metaplax (Crustacea, Brachyura, Varunidae) from East Asia and northern Vietnam

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          Abstract

          Abstract

          Intertidal mudflat crabs of the genus Metaplax H. Milne Edwards, 1852 ( Crustacea : Brachyura : Varunidae ) from China, Taiwan, and northern Vietnam are taxonomically revised by morphological and molecular evidence. These crabs show sexual dimorphism and morphological variation of a considerable range in the infraorbital ridge, one of the primary features previously used for species identification. In this study, four species were identified from the region: M. elegans De Man, 1888; M. longipes Stimpson, 1858; M. sheni Gordon, 1930; and M. tredecim Tweedie, 1950. Based on the results of the morphological examination, and as confirmed by molecular evidence from mitochondrial cytochrome oxidase subunit I (COI), taxonomic confusion surrounding M. longipes was resolved, and M. takahasii Sakai, 1939, is considered a junior synonym of M. longipes . The geographical distribution of Metaplax longipes extends along the shores of China, north to Jiangsu, whereas the Southeast Asian M. tredecim was newly recorded from northern Vietnam and Hong Kong.

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          Most cited references 48

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          A General Account of the Fauna and Flora of Mangrove Swamps and Forests in the Indo-West-Pacific Region

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            Morphological and genetic differentiation of the acorn barnacle Tetraclita squamosa (Crustacea, Cirripedia) in East Asia and description of a new species of Tetraclita

             K. Chu,  Benny Chan,  L M Tsang (2007)
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              Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world.

               PKL NG,  D Guinot,  PJF DAVIE (2008)
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                Author and article information

                Contributors
                Journal
                Zookeys
                Zookeys
                2
                urn:lsid:arphahub.com:pub:45048D35-BB1D-5CE8-9668-537E44BD4C7E
                urn:lsid:zoobank.org:pub:91BD42D4-90F1-4B45-9350-EEF175B1727A
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2019
                02 October 2019
                : 877
                : 1-29
                Affiliations
                [1 ] Department of Life Science, National Chung Hsing University, Taichung 402, Taiwan
                [2 ] Research Center for Global Change Biology, National Chung Hsing University, Taichung 402, Taiwan
                [3 ] Biodiversity Research Center, Academia Sinica, Taipei 115, Taiwan
                [4 ] Department of Biological Sciences, National University of Singapore, 117543, Singapore
                Author notes
                Corresponding author: Hsi-Te Shih ( htshih@ 123456dragon.nchu.edu.tw )

                Academic editor: Sammy De Grave

                Article
                38300
                10.3897/zookeys.877.38300
                6785571
                Hsi-Te Shih, Jhih-Wei Hsu, Kingsley J. H. Wong, Ngan Kee Ng

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                Funding
                Funded by: Ministry of Science and Technology, Taiwan 501100004663 http://doi.org/10.13039/501100004663
                Categories
                Research Article
                Crustacea
                Decapoda
                Varunidae
                Taxonomy
                Asia
                China Seas
                Taiwan
                Vietnam

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