Wait? What about the monkeys, tigers, dogs, cats, spiders, snakes, lions, wolfs etc.?
And even if they are born on a different planet it seems like a normal thing as to say that somebody is from that planet. Not all Twi'lek are from the same planet, but you can surely call all of them Ryllothans (was it Rylloth actually? I am not THAT into SW-lore)...