About Pseudoboa neuwiedii (Duméril, Bibron & Duméril, 1854)
Pseudoboa neuwiedii reaches a maximum total length (including the tail) of 1 meter (39 inches). Its dorsal side is reddish brown, and can be either uniformly colored or marked with scattered small black spots. The top of its head and neck are black or dark brown. A yellowish crossband or collar across the temples and occiput may be present or absent. Its ventral side is yellowish. This species is venomous, but the anatomy of its teeth makes it difficult for the snake to inoculate venom. Its venom is highly proteolytic, and can affect blood coagulation by degrading fibrinogen. Pseudoboa neuwiedii occurs on mainland South America from Colombia to The Guianas, in Brazil along the Amazon River, and also on Grenada and Trinidad and Tobago. P. neuwiedii is oviparous.
