Source please?
http://racialreality.110mb.com/subraces.html
East African: In the deserts and highlands of Ethiopia, Eritrea, and the Somalilands is found a concentration of several related Mediterranean types, mixed in varying degrees with negroes. To the west these partial whites border on Sudanese negroes; to the southwest the partially Hamitic tribes of Kenya and Uganda form art extension of the peripheral Mediterranean racial area. To the north, the Beja-Bisharin group of Hamitic-speaking nomads connect the East African Hamitic-speaking peoples with their wholly white Egyptian and Berber relatives of North Africa.
Pigmentation is the most readily visible signifier of race, and as such it's often used by laymen to detect bi-racial ancestry. Yet it's also the least reliable from this standpoint, as it changes in response to climatic and environmental conditions, both seasonal and long-term, and can vary greatly within genetically differentiated populations (i.e. races).
http://racialreality.110mb.com/skincolor.html