Rhinoceros viper (Bitis nasicornis) is a venomous viper species found in the forests of West and Central Africa. A big viper, it is known for its striking color pattern and has a distinctive set of two or three horn-like scales on the end of the nose, the front pair of which may be quite long. Large and stout, it ranges in total length (body + tail) from 72 to 107 cm.