Alan is right(again).
There is the human species, Homo Sapiens Sapiens, divided by races like North Americans, native North Americans, Europeans, Africans, Asians, Middle-easterners.
I(personnally) prefer to use geographical references rather than skin color references because it is not only about skin color. For example, Africans will usually have a larger nose, their hair is very curly and their limbs are longer.
Similar differences, although usually more subtle, can be observed in most people from different continents.
EDIT: Monday morning... I just noticed how late I am with this reply...
Sorry. :">