Lee Moore, Sr. caught this Venomous Mussurana, a rear fanged colubrid, in Moyobama, Peru.
  These snakes have a  mild disposition and therefore rarely bite.

The Mussurana is of the Family colubridae. Most colubrids are not venomous and the ones that are venomous are usually mildly so. The bite of the Mussurana produces symptoms of local swelling and  ecchymosis (bruising effect) without any coagulation or systemic disturbances. Treatment is symptomatic of local effects. There are few colubrids like the Boomslang (Dispholidus typus) of Africa, which has been known to cause fatalities. The Twig or Vine snake ( Thelortornis  Sp.) is also the only other Rear Fanged Colubrid known to cause death in humans.