Though they are not common in western Africa, there have been individual sightings.
Biogeographic Regions: ethiopian (Native ) Continent: Africa Distribution: Angola, Botswana, Burkina Faso, Central African Republic, Eritrea, Senegal, Guinea, Guinea-Bissau, Mali, Cameroon (Adamaoua [HR 35: 191]), Ethiopia, Ivory Coast, Kenya, Malawi, Mozambique, Namibia, Republic of South Africa, Somalia, Swaziland, Tanzania, Uganda, N/S Democratic Republic of the Congo (Zaire), Zambia, Zimbabwe antinori: Somalia, Ethiopia, NE Uganda, N Kenya; Type locality: Ansaba = Anseba, Eritrea, Ethiopia. Dark spots or blotches may speckle the back half of the body and some individuals have alternating dark and light scales near the posterior, giving the impression of lateral bars. Kuper Medisch Spectrum Twente (The Netherlands) Kees C. In the two series of radiographs, the system could automatically locate and measure 1003/1088 (92.2%) and 1143/1200 (95.3%) individual joints, respectively. Accuracy was assessed by comparison with reported measurements with other systems.Black mambas are common in sub-Saharan areas of south and east Africa.They can be found as far north as Eritrea, through South Africa, and as far west as Namibia.