Ethnic makeup of legionaries

[Aemilius Paulus]

The North Africans weren't exactly black in today's sense were they? I mean, they had dark skin, but so do the people India. Were the North Africans of that time part of the African races, or the Asian/Mediterranean? Right now, North Africa is populated by mostly Arabs, descendants of Muslim conquerors, but in the Antiquity tribes like Berbers inhabited North Africa. Unless I am mistaken, Berbers weren't of the same race as, say, the Tuareg people, which were true Africoids (similar to the outdated term "Negroid).