They're actually the White and Black Dragonbrood. The U.S. version calls them the Light and Dark Dragon Clan.
See, that's a phrase I don't like - "Dragon Clan". "Ryu no Ichizoku" is the Japanese name, and yes, it can be translated thus, but it sounds more like a term for a family, rather than the species-like connotations it's supposed to have. But I don't care for BoF3's "Brood", either - I dunno why, but it makes me think of the Zerg.
So I compromised.
Anyways, I haven't worked on the project in a while; the trade-in screen pretty much needs VWF if I'm going to cram in equipment names of respectable length. Eight characters is just not enough, and rearranging things is only going to get me ten at most.