It is found in the upper Amazon basin in Brazil, Peru, Colombia, and Venezuela.

The snout is subacuminate to acuminate in dorsal view, but round in vertical profile.

[4] There are three color patterns: (1) dorsum greenish gray, light to dark brown, without pattern or with very small black spots, (2) strongly patterned dorsum with brown to olive background and bearing a "W" mark between the shoulders, as well as diagonal dark brown stripes across the body and limbs, and (3) an intermediate form showing light to dark brown dorsum with indistinct bars, with or without the W between the shoulders, and sometimes with a lichen-like pattern.

During the night they can be found on low plants, leaves, rocks, mossy walls, and on the ground.

It is a common species whose range overlaps with several protected areas.