This duiker occurs from east Nigeria to Kenya and Tanzania , southwards to Angola , Zambia , Malawi , east Zimbabwe and Mozambique ; it is also present in Natal and Cape Province and on Zanzibar , Bioko and Pemba islands (Wilson & Reeder, 1993; East, 1996). Its distribution map was first obtained from Skinner & Smithers (1990), then refined following the boundaries of the more reliable country maps in East (1988, 1989, 1990), as indicated by Dr. R. East (23 June '97) (Fig. 8.6.54.a.).
Categorical-discrete (CD) distribution model
The species occurs in lowland and mountain rainforest, riverine forest and moist savanna; its also inhabits forest patches and gallery forest in the savanna zone (Kingdon, 1997; Skinner & Smithers, 1990; East, 1988, 1989, 1990)