Oxyrhopus formosus
(WIED-NEUWIED, 1820)
Madre Selva Field Station, Depto Loreto, Peru. January 11, 2011.
There are many beautiful snakes in Amazonia, but this one may be the best of the lot. They are active at night, and one or two show up on most of my trips.. The largest one I’ve seen was around 30 inches in length.