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This frog has a maximum snout-vent length of 70 mm but usually they are 40 to 50 mm long. The tympanum is small but visible, from 1/2 to 3/5 the eye diameter. They present thin but well-defined dorsolateral folders. They have long hind limbs with webbed feet. Skin can be smooth or slightly granulated. The coloration is usually reddish brown above, sometimes ochre, often with dark and whitish marks and a black "V" in the back. A dark temporal stripe is present from the nostril to the eye, broadening behind the eye to the end of the jaw. A thin white stripe extends along the upper lip. Dark transverse bands are present in the hind limbs. Ventrally they are whitish to reddish. The throat is heavily pigmented in dark gray with an unpigmented central stripe.Males lack vocal sacs but have nuptial pads in the breeding season and are smaller than females (Galán 1989).Tadpoles grow to around 50 mm of total length. The spiracle is sinistral and the anus open on the right side of the tail base. Marginal papillae are absent from the upper side of the mouth. Denticles are arranged in 3 to 5 upper single rows and 4 lower single rows. The dorsal fin is well developed, starting in the posterior half of the body. The tail finish in an obtuse angle. The ground coloration is brown, sometimes reddish, with whitish and golden marks. Ventral coloration is grayish and the intestines are visible through the epithelium.