Both sexes reach a total length of well over 200mm. Tail relatively high, shorter than body with head. The toes on front- and hind feet are short. Conspicuous parotoid glands behind eyes are pigmented. The base color is black, with yellow spots irregularly distributed on the back. Females generally larger than males and possess relatively shorter extremities and tail. Male's cloaca much more swollen than female's cloaca.