RESEARCH ARTICLE Redescription and Geographical Distribution of the Endangered Fish Ossubtus xinguense Jégu 1992 (Characiformes, Serrasalmidae) with Comments on Conservation of the Rheophilic Fauna of the Xingu River Marcelo C. Andrade1*, Leandro M. Sousa2, Rafaela P. Ota3, Michel JeÂgu4, a11111 Tommaso Giarrizzo1,2 1 Universidade Federal do ParaÂ, Cidade UniversitaÂria Professor Jose Silveira Netto, Instituto de Ciências BioloÂgicas, Programa de PoÂs-GraduacËão em Ecologia AquaÂtica e Pesca, LaboratoÂrio de Biologia Pesqueira e Manejo dos Recursos AquaÂticos, BeleÂm, PA, Brazil, 2 Universidade Federal do ParaÂ, Campus UniversitaÂrio de Altamira, Faculdade de Ciências BioloÂgicas, LaboratoÂrio de Ictiologia, Altamira, PA, Brazil, 3 Instituto Nacional de Pesquisas da AmazoÃnia, Programa de PoÂs-GraduacËão em Biologia de A gua Doce e Pesca Interior, Manaus, AM, Brazil, 4 Institut de Recherche Pour le DeÂveloppement, Biologie des OPEN ACCESS Organismes et Ecosystèmes Aquatiques, Laboratoire d'Icthyologie, MuseÂum national d'Histoire naturelle, Paris, France Citation: Andrade MC, Sousa LM, Ota RP, JeÂgu M, Giarrizzo T (2016) Redescription and Geographical *
[email protected] Distribution of the Endangered Fish Ossubtus xinguense JeÂgu 1992 (Characiformes, Serrasalmidae) with Comments on Conservation of the Rheophilic Fauna of the Xingu River. PLoS ONE Abstract 11(9): e0161398. doi:10.1371/journal. pone.0161398 The monotypic species Ossubtus xinguense was originally described based on scarce material putatively divided into juveniles and adults. Ossubtus xinguense has a restricted Editor: Matt Friedman, University of Oxford, UNITED KINGDOM distribution and was previously known only from a few rapids downstream of the city of Alta- mira, in the Volta Grande stretch of the Middle Xingu River. Until recently, the species was Received: January 24, 2016 rare in museums because its habitat (large rapids) is difficult to sample.