Distribution. SW Tanzania, known only from the Udzungwa Mts, a few small tracts of forest between the Little Ruaha and Ulanga rivers (S of Iringa), and several forest patches of the Kilombero Valley at the E base of the Udzungwa Mts (Magombera, Kiwanga, Kalunga, and in gallery forest along the Msolwa River S of the railway to its confluence with the Kilombero River, including the Ibiki and Msitu ya Kinjugu forests). in Cercopithecidae

Distribution. SW Tanzania, known only from the Udzungwa Mts, a few small tracts of forest between the Little Ruaha and Ulanga rivers (S of Iringa), and several forest patches of the Kilombero Valley at the E base of the Udzungwa Mts (Magombera, Kiwanga, Kalunga, and in gallery forest along the Msolwa River S of the railway to its confluence with the Kilombero River, including the Ibiki and Msitu ya Kinjugu forests).