The skin of the back has short longitudinal glandular folds, with a strong fold from the eye to the shoulder. Their color is brown above, with rather indistinct darker spots; rarely, they are uniform pinkish, sometimes with a light vertebral band; a dark cross-band occurs between the eyes; a black band is found along the canthus rostralis, and a black temporal spot is seen.
The description provides detailed information about the physical characteristics of the back skin of this animal, including its color, markings, and specific anatomical features like the glandular folds and cross-bands.