User blog comment:Ajrep1994/Yang and Ruby are half sisters/@comment-3257939-20140723235141/@comment-11188061-20140724114152

Pretty much because of the Chinese name. Because the Western custom is to put the surname at the back, whenever an English name is read they're always read the other way around. But our custom is to read the surname at the front.

It is not entirely impossible for there to be a surname called Xiao Long, but it'd have to be incredibly rare, not to mention that in Chinese Xiao Long Yang reads really weird.