A new species of Atelopus is described (loc. typ.: Rio Carauta, Parque Nacional Natural de las Orquideas, western slope of the Western Andes, Dept. of Antioquia, Colombia) , it is recognizable among the remaining species of the genus mainly by the strikingly protruding snout, the ossification and elongation of the sphenoethmoidal complex, the absence of tympanum and columella auris, and the remarkable exostosis development of the supratympanic crests and the neural spines of the presacral vertebrae. The rostral development, the absence of tympanum and columella auris, and the chromatic characters reveal a noticeable evolutionary parallelism with the species of the genus Rhamphophryne. Also the cranial and vertebral exostosis found indicate a parallelism with Bufo typhonius and the species of the genus Hemiphractus.