Those are in the right general area. "Species" is too technical, though (the Zemrin encompass a whole range of apparent "species", and the scientific meaning of the word doesn't match either), and "kind" is too vague. I'll keep looking, but my thought for now is that I might not even need a word for it. There are nationalities and upbringings and cultures, and there are physiologies and inborn traits, and those are two totally separate things.
@bj How is kind too vague, exactly? It feels like just what you want here, but perhaps I'm only thinking of it in its archaic-and-maybe-poetic meaning of "group of things, especially living things, with similar traits"--basically "species" but less scientific and with fuzzy boundaries
-F
@bj (which are kind of just the Romance and Germanic words for the same thing)
-F