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      Lysmata arvoredensis nov. sp. a new species of shrimp from the south coast of Brazil with a key to species of Lysmata (Caridea: Lysmatidae) recorded in the southwestern Atlantic

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          Abstract

          Lysmata arvoredensis sp. nov. inhabits temperate waters in the south coast of Brazil and is named in tribute to the Marine Protected Area REBIO Arvoredo. This is the fourth species belonging to the genus Lysmata recorded for the region and the ninth for Brazil. L. arvoredensis sp. nov. can be distinguished from other species of Lysmata by the presence of a nearly completely fused accessory branch with a single free unguiform segment on the outer antennular flagellum; a rostrum with seven dorsal (2+5) and three ventral teeth; a stylocerite with a pointed tip bearing mesial setae; a second pereiopod with 22–24 carpal subsegments and 14–16 subsegments in the merus; a merus of the third pereiopod with five ventrolateral and 12 ventral spines on the propodus; and its color pattern, with red bands and patches in pleonites 2–3 that resemble a mask in dorsal view. Molecular characters demonstrate that L. arvoredensis sp. nov. is most closely related to other species of Lysmata belonging to the Neotropical and Cleaner clades. To support future ecological studies in the region, identification keys to the species of Lysmata recorded in the southwestern Atlantic Ocean are provided.

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          Most cited references 46

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          The shrimps of the Smithsonian-Bredin Caribbean Expeditions with a summary of the West Indian shallow-water species (Crustacea: Decapoda: Natantia)

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                Author and article information

                Contributors
                Journal
                PeerJ
                PeerJ
                PeerJ
                PeerJ
                PeerJ
                PeerJ Inc. (San Francisco, USA )
                2167-8359
                5 September 2018
                2018
                : 6
                Affiliations
                [1 ]Environmental Science Centre, Qatar University , Doha, Qatar
                [2 ]Laboratório de Crustáceos e Plâncton, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina , Florianópolis, Santa Catarina, Brazil
                [3 ]Observatoire Océanologique de Villefranche-sur-Mer , Villefranche-sur-Mer, France
                [4 ]Department of Biological Sciences, Clemson University , Clemson, SC, USA
                [5 ]Smithsonian Marine Station at Fort Pierce , Fort Pierce, FL, USA
                [6 ]Departamento de Biología Marina, Facultad de Ciencias del Mar, Universidad Católica del Norte , Coquimbo, Chile
                Article
                5561
                10.7717/peerj.5561
                6129138
                © 2018 Giraldes et al.

                This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.

                Funding
                Funded by: Project MAArE (Monitoramento Ambiental do Arvoredo e Entorno)
                Funded by: Brazilian oil company PETROBRAS
                Funded by: National Counsel of Technological and Scientific Development—CNPq
                Award ID: 312644/2013-2, 311994/2016-4
                This work was supported by Project MAArE (Monitoramento Ambiental do Arvoredo e Entorno) and funded by the Brazilian oil company PETROBRAS. This work was also supported by the grant from the National Counsel of Technological and Scientific Development—CNPq (312644/2013-2, 311994/2016-4) to Andrea S. Freire. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
                Categories
                Biodiversity
                Genetics
                Marine Biology
                Taxonomy

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