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      Ergasilus yumaricussp. n. (COPEPODA: ERGASILIDAE) DAS BRÂNQUIAS DE Pygocentrus nattereri (KNER, 1860), Serrasalmus rhombeus (LINNAEUS, 1819) E Pristobrycon eigenmanni (NORMAN, 1929) (CHARACIFORMES : SERRASALMIDAE) DA AMAZÔNIA BRASILEIRA Translated title: Ergasilus yumaricus sp. n. (Copepoda: Ergasilidae) from the Gills of Pygocentrus nattererì (Kner, 1860), Serrasalmus rhombeus (Linnaeus, 1819) and Pristobrycon eigenmanni(Norman, 1929) (Characiformes: Serrasalmidae) from Brazilian Amazon

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          Abstract

          Ergasilus yumaricussp. n. (Copepoda, Poecilostomatoida, Ergasilidae) é proposta. Os espécimens foram coletados dos filamentos branquiais de Pygocentrus nattereri, Serrasalmus rhombeuse Pristobrycon eigenmannido Rio Guaporé próximo à Pimenteiras, rios Guaporé e Mamoré próximo à Surpresa, rio Jiparaná próximo à Jiparaná e Pacaás Novos próximo à Guajará-Mirim, Estado de Rondônia, Brasil. A nova espécie tem uma seta forte, pectinada e falciforme no primeiro exopodito, indicando uma relação com outras seis espécies amazônicas. Esta espécie difere das outras na forma do corpo, ornamentações das pernas, antenas e urossomitos.

          Translated abstract

          Ergasilus yumarikussp. n. (Copepoda, Poecilostomatoida, Ergasilidae) is proposed. The specimens were collected from the gill filaments of the freshwater fishes Pygocentrus nattererì, Serrasalmus rhombeusand Pristobrycon eigenmannifrom Guaporé River near Pimenteiras, Guaporé and Mamoré Rivers, near Surpresa, Jiparaná River near Jiparaná and Pacaás Novos River near Guajará-Mirim, Rondônia state, Brazil. The new species has a falciform pectinate seta on the first exopod that indicates relationship to six previously described Amazonian species. This species differs from others in the shape of body, ornamentation of the legs, antennas and urosomites.

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          Author and article information

          Contributors
          Role: ND
          Role: ND
          Journal
          aa
          Acta Amazonica
          Acta Amaz.
          Instituto Nacional de Pesquisas da Amazônia (Manaus )
          1809-4392
          1995
          : 25
          : 1-2
          : 93-100
          Affiliations
          [1 ] Instituto Nacional de Pesquisas da Amazônia Brazil
          Article
          S0044-59671995000200093
          10.1590/1809-43921995252100
          Product
          Product Information: website
          Categories
          AGRONOMY
          BIOLOGY
          ZOOLOGY

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