A lot of colorations and patterns of coloration exist among the monitor species.
We focus here on a specific pattern of coloration of the head.
There is a large transversal band, yellowish or lighter than the rest of the head, over the snout.
When head is seen on side view, this ligther area includes nostril but the tip of snout and eye remain in the darker part.
Please see the illustration before chosing this state of descriptor.
There is no transversal yellow or lighter band over the snout.