Made available in DSpace on 2022-04-28T21:24:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-08-26; A new species of Moenkhausia is described from the rio Amazonas and rio Orinoco basins. The new species can be distinguished from congeners mainly by the combination of a conspicuous, relatively small and circular humeral spot, a black spot on the upper caudal-fin lobe, lower caudal-fin lobe without spo...