RHINOCEROS VIPER

also called River Jack (Bitis nasicornis), vividly coloured venomous snake of the family Viperidae, found near water in African rain forests. It grows to about 1.2 metres (4 feet) and has a thick body and large, hornlike scales on the end of its snout. A complicated and attractive pattern of blue, black, purple, red, and yellow runs along the back. Its sides are green and gray.