Diagnostic description: The legs lacking webbing. Ll finger is longer than l, lll and lV and fingers have clearly expanded discs. The heel is smooth or with a few small tubers, similar to other scattered tubercles on the lower limb size.
The groin and the anterior surface of the thigh lack of contrasting light and dark spots or some other design. The discs of the outer fingers (III and IV) of the hand and lll and lV paw and pointed roofs have triangular bearings. The discs feature covers or lanceolate or papiladas.
The pattern is uneven or blotchy, never yellow with small brown spots well defined. The belly is pink. The back is usually uniform, pinkish in males, reddish in most females, and pale yellow and dark brown, respectively, in preservative fluid. Lack vomerine teeth.
Adult males lack nuptial pads, but have vocal slits. The maximum standard length of males is 21 mm. and 25 mm. in females.
Reproduction: A male and about 11 eggs was located in a bromeliad.
Distribution in Costa Rica: In the highlands of the Cordilleras Tilarán Central Volcanic and Talamanca, between 1,500 and 2,500 m. Lift (Savage 2002).