A new species of characid fish, Hyphessobrycon scutulatus, is described from the rio Teles Pires drainage, upper rio Tapajós system. The new species is distinct from all Hyphessobrycon species by the following characters: inner row premaxillary teeth 7 or 8, all tricuspid; maxilla with 5 to 9 tricuspid teeth; horizontal lateral body stripe or humeral mark absent; and a spot centered on the basal portion of the median caudal-fin rays sometimes extends to the distal portions of those rays.
Neotropical; Amazon; taxonomy; fishes
