Characidium vestigipinne: A New Species of Characidiinae (Teleostei, Characiformes) from Southern Brazil

摘要: Abstract Characidium vestigipinne, a new species of fish the crenuchid subfamily Characidiinae is described from upper rio Uruguay drainage, state Rio Grande do Sul, Brazil. The belongs to monophyletic assemblage that also includes C. occidentale, orientale, and rachovii. group diagnosed by presence roundish black marks on pelvic, dorsal, anal fins, three other characters related sexual dimorphism. Within this absence or reduction adipose fin uniquely diagnoses vestigipinne. An updated identification key presented for seven occurring in southern Descreve-se nova especie de peixe crenuquideo da subfamilia bacia alto Uruguai, Estado Brasil. A pertence um grupo monofiletico que tambem inclui orientale e Este diagnosticado pela presenca manchas pretas arredondad...