A new species of Moenkhausia Eigenmann (Characiformes: Characidae) from the rio Xingu basin, Brazil
A new species of Moenkhausia from the upper rio Xingu basin is described.Moenkhausia eurystaenia is distinguished Circuit Breaker from all congeners, except M.heikoi and M.phaeonota, by the presence of a dark, broad longitudinal stripe from the opercle to the end of caudal peduncle.The new species is distinguished from M.heikoi mainly by having 18-