The Elves in Tolkien's Middle Earth have a LOT of races, but they're mostly discussed in The Silmarillion. Checking on Robert Foster's Guide to Middle Earth, I see Elves initially divided between the Eldar (those who accepted the Valar's calling) and the Avari (those who refused). The Eldar were divided between the Vanyar, who were blonde, chill and the gods' favorites; the Noldor, who were remarkable smiths and had "dark hair and grey eyes"; and the Teleri, who dwelled by the sea and were allegedly the better singers. A large chunk of Teleri that didn't finish the journey home became Umanyar, who in turn split between Nandor, who loved the woods and weren't very good at warfare; the Laiquendi, who were "excellent rangers" and led a covert life; and the Sindar, who weren't as powerful as the Calaquendi nor as good craftsmen as the Noldor, but were musically gifted and had beautiful singing voices... etc, etc, etc. And I'm not even counting Orcs and their many branching brethren, who are directly descended from Elves.
Anyway, most of these "elvish families" had a distinctive hair color, skin tone and whatever makes up an ethnicity. But I wouldn't know about other literary works, I'm solely versed on Tolkien's.