Bitis

rhinoceros viperRhinoceros viper (Bitis nasicornis).

Bitis, snake genus belonging to the venomous viper family Viperidae, including the puff adders (e.g., Bitis arietans, see adder; the Gaboon viper, B. gabonica; and the rhinoceros viper, B. nasicornis). There are a dozen or more species of Bitis. All occur in Africa and range from 30 cm to 1.8 metres (12 inches to 6 feet) in length.

This article was most recently revised and updated by Amy Tikkanen.