A large brown treefrog with large dermal flaps on the elbow and heel; SVL generally 60-80 mm, one male 62 mm, one female 75 mm, one female from Marojezy 103 mm. Males are smaller than females. Beige to reddish brown with dark brown bands on the limbs, and sometimes a transverse dark brown line behind the eyes. Venter creamish. Skin on the back smooth in females, sometimes granular in males during the breeding season. Iris brown around the pupil with a whitish ring on the outer iris area. Posterior iris periphery whitish. Nostrils equidistant between eye and tip of snout. Tympanum distinct, about 1/2 - 2/3 of eye diameter. Tibiotarsal articulation reaches at least tip of snout. Webbing of the hand 1(1.5), 2i(1.5), 2e(1), 3i(2), 3e(0.5), 4(0.5); webbing of the foot 1(0), 2i(0.5), 2e(0), 3i(1), 3e(0), 4i/e(1), 5(0). Males with nuptial pads and a slightly distensible, single subgular vocal sac
Similar species: The only other large species with dermal flaps on the heels and elbows is Boophis brachychir. Juveniles can be mistaken with other species of the goudotii-group.
Taken with permission from Glaw and Vences (2007).
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