The eastern green mamba (Dendroaspis angusticeps) is a highly venomous snake species of the mamba genus Dendroaspis. They are found in the coastal regions of southern East Africa.[1] It was discovered in 1849. It has a slender build with bright green upperparts and yellow-green underparts. The adult female averages around 2 metres (6 ft 7 in) in length, and the male is slightly smaller.