 Juvenile specimens are commonly a glossy black or gray.The snouted night adder is found in coastal Kenya and Tanzania through eastern Africa (Malawi, Zambia, Zimbabwe, Mozambique) to South Africa (Northern, Mpumalanga and KwaZulu-Natal Provinces) as far south as Durban, and on the island of Unguja.The type locality was originally listed as "Buenos Ayres", obviously a mistake.