The skin is dry and has a bumpy texture. The colour can be variable from reddish brown, or dark brown to greyish upper body and flecked off-white undersides. Striking bright golden eyes. When sitting it has a rounded shape, with slightly bowed front legs. If surprised in the open, it will crouch down: but if threatened it may inflate its cheek air sacks and “stand tall” on its front and back legs, making a hissing noise. It tends to walk or hop. Females (130mm) are much larger then males (80mm).