Adult: Species description based on Savage (1975). A moderate-sized frog. Females grow larger than males (males to 40 mm, females to 65 mm). Dorsal: The dorsal surface is uniform dark brown, with little blotchiness. Ventral: The ventral surface is pale yellow. The throat is solid brown. Distinguishing characteristics: The rear surface of the thighs have a few, small yellow spots. Extremities: Feet have moderate webbing.