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      Tubuca alcocki , a new pseudocryptic species of fiddler crab from the Indian Ocean, sister to the southeastern African T. urvillei (H. Milne Edwards, 1852) (Crustacea, Decapoda, Brachyura, Ocypodidae)

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          Abstract

          Abstract

          A new pseudocryptic species of fiddler crab, Tubuca alcocki sp. n., is described from the northern Indian Ocean. The new species was previously identified with T. urvillei (H. Milne Edwards, 1852), but can be distinguished by the structures of the anterolateral angle of the carapace and male first gonopod. The molecular data of the mitochondrial cytochrome oxidase subunit I gene shows that both are sister taxa and the divergence time is estimated at 2.2 million years ago, around the beginning of the Pleistocene. While the new species is widely distributed in the northern part of Indian Ocean, occurring from the Red Sea to India and the Andaman Sea; T. urvillei sensu stricto has a more restricted range, and is known only from southeastern Africa.

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          Most cited references 76

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          Sibling Species in the Sea

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            Rapid evolution to terrestrial life in Jamaican crabs

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              Molecular genetic analyses of species boundaries in the sea

               N Knowlton (2000)
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                Author and article information

                Journal
                Zookeys
                Zookeys
                ZooKeys
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2018
                29 March 2018
                : 747
                : 41-62
                Affiliations
                [1 ] Department of Life Science and Research Center for Global Change Biology, National Chung Hsing University, 250, Kuo Kuang Road, Taichung 402, Taiwan
                [2 ] Biodiversity Research Center, Academia Sinica, Taipei 115, Taiwan
                [3 ] Lee Kong Chian Natural History Museum, National University of Singapore, 6 Science Drive 2, Singapore 117546, Republic of Singapore
                Author notes
                Corresponding author: Benny K. K. Chan ( chankk@ 123456gate.sinica.edu.tw )

                Academic editor: Sammy De Grave

                Article
                10.3897/zookeys.747.23468
                5904522
                Hsi-Te Shih, Benny K.K. Chan, Peter K.L. 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.

                Categories
                Research Article
                Animalia
                Arthropoda
                Crustacea
                Decapoda
                Invertebrata
                Ocypodidae
                Systematics
                Taxonomy
                Pacific

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