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Astyanax pirapuan: A new characid species from the upper Rio Paraguay system, Mato Grosso, Central Brazil (Characiformes, Characidae)
ArticleAbstract: A new characid fish is described herein from tributaries of the Rio Aricá-Mirim, Rio Cuiabá basin, CPalabras claves:Astyanax scabripinnis, NEOTROPICAL, taxonomyAutores:Benine R.C., Ricardo Britzke, Silva G.S.C., Tagliacollo V.A.Fuentes:scopusApistogramma eleutheria and A. Flavipedunculata, two new species of dwarf cichlids from the rio Curuá on Serra do Cachimbo, Brazil (Teleostei: Cichlidae)
ArticleAbstract: Apistogramma eleutheria and Apistogramma flavipedunculata are described from the upper portion of twPalabras claves:Autores:Ricardo Britzke, Varella H.R.Fuentes:scopusApistogramma ortegai (Teleostei: Cichlidae), a new species of cichlid fish from the Ampyiacu River in the Peruvian Amazon basin
ArticleAbstract: Apistogramma ortegai, new species, is described from small streams tributaries of the Ampiyacu RiverPalabras claves:amazonía, freshwater, Geophaginae, Geophagini, MORPHOLOGY, taxonomyAutores:Kullander S.O., Oliveira C., Ricardo BritzkeFuentes:scopusGeographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia
ArticleAbstract: Moenkhausia bonita occurs in numerous additional localities from the Bermejo, Paraná, Paraguay, andPalabras claves:Allometry, argentina, Moenkhausia, Morphological variation, Widespread speciesAutores:Mirande J.M., Ricardo Britzke, Vanegas-Ríos J.A.Fuentes:scopusFish fauna of the trans-Andean Tumbes river basin in northern Peru
ArticleAbstract: To update the knowledge of the ichthyofauna of the Tumbes River basin, we provide a list of species.Palabras claves:Coastal rivers, endemism, Ichthyofauna, Pacific slope basins, Peruvian coastal drainagesAutores:Apaza J., Armas M., Chumbe-Nolasco L.D., Cortijo A.M., Meza-Vargas V., Ortega H., Ricardo Britzke, Valenzuela S.Fuentes:scopusFishes from the Parque Nacional do Pantanal Matogrossense, upper Paraguai River basin, Brazil
ArticleAbstract: The Pantanal Biosphere Reserve contains one of the highest concentration of animal species in the NePalabras claves:Autores:de Arruda Machado F., de Lima J.A.F., de Resende E.K., Melo B.F., Petrere M., Polaz C.N.M., Ricardo BritzkeFuentes:scopusNew species of the Pseudancistrus barbatus group (Siluriformes, Loricariidae) with comments on its biogeography and dispersal routes
ArticleAbstract: A new species of Pseudancistrus is described from the Tapajós Basin, and assigned to the P. barbatusPalabras claves:Ancistrini, Brazilian Shield, F-reticulon 4, freshwater, molecular phylogenyAutores:e Silva G.d.S.d.C., Oliveira C., Ricardo Britzke, Roxo F.F.Fuentes:scopusWho is Andesiops peruvianus (Ulmer, 1920) (Ephemeroptera: Baetidae)? New insight from the type basin using morphological and molecular analyses
ArticleAbstract: Andesiops peruvianus (Ulmer, 1920) is a small minnow mayfly with a distribution throughout the AndesPalabras claves:Andes mountains, molecular approach, MOTU, species complex, species delimitationAutores:Huamantinco A.A., Mera R., Núñez-Rodríguez D., Ramirez J.L., Ramírez R., Ricardo Britzke, Siccha-Ramirez Z.R., Velásquez-Rodríguez K.Fuentes:scopus