New records of the harlequin frog Atelopus nahumae RUIZ-CARRANZA, ARDILA-ROBAYO & HERNANDEZ-CAMACHO, 1994, in the Sierra Nevada de Santa Marta (Colombia), with notes of its distribution (Anura: Bufonidae)

The known distribution of the harlequin frog, Atelopus nahumae RUIZ-CARRANZA, ARDILA-ROBAYO & HERNANDEZ-CAMACHO, 1994, is reported along with three new locality records in the northwestern Sierra Nevada de Santa Marta (Colombia). In the new localities, observations were made on the frog's mating behavior. This report adds the Cordoba River Basin, another high valley of the Sierra Nevada de Santa Marta, to the known range of A. nahumae. Nevertheless, the general distribution of the species in this region is largely unknown.