We describe a new species of theRhinella acrolophagroup (previouslyRhamphophryne) from
mid-elevations (1800–2500 m) of the Cordillera Occidental of Colombia. It is found exclusively in cloud
forest habitats and is not associated with streams or other bodies of water. The species is characterized by
possessing eight presacral vertebrae, fusion of the sacrum and urostyle, and nuptial excrescences in adult
males, and in lacking conspicuous cranial ornamentation and vocal slits. The most striking characteristic of
this species is its middle ear, which lacks a tympanic membrane and annulus but possesses a short stapes that
articulates with the palatoquadrate and squamosal in a manner similar to the middle ear of many
salamanders. A population of this species in the Serran´ıa de los Paraguas seems to be stable despite drastic
declines in many sympatric species.