I noticed they seem to have an aversion to including really dark-skinned females, in particular. We still have more dark-skinned males than females. The best example that comes to mind is M'naago, and she's not even that dark-skinned.
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Probably a Japan thing. Girls want to be as pale as possible over there. :v They've got all sorts of skin lightening creams and stuff. Not surprised we got a Viera clan whose main identifier is their "snow white skin."
Funny thing is that it is the opposite situation in the west, tanning beds and all that.