Primates, Pitheciidae, Callicebus barbarabrownae Hershkovitz, 1990: new localities for the critically endangered titi monkey in the São Francisco basin, state of Sergipe, Brazil [with erratum]

Abstract

Barbara Brown’s titi monkey, Callicebus barbarabrownae Hershkovitz, 1990, appears to be endemic to the Caatinga of northern Bahia and western Sergipe, although few data are available for the northernmost portion of its range. The present study presents seven new occurrence records of the species, in the São Francisco basin of northern Sergipe, extending its range in the state over a distance of more than 50 km from west to east. This represents an important extension of the known range and total number of populations of this critically endangered primate species.