This is pretty much the only information available about the enigmatic people of Ka Po' Tun, and I don't know about the rest of you, but i've always viewed them as pretty similar to the Khajiit. However, after some thought on the subject, I've come to the conclusion that this interpretation is wrong.
I'll start with the dragons. Tamriel is a European-influenced land, so naturally they have European dragons. However, the dragons originated in Akavir, an Asian-influenced continent. Why would the dragons there look like Akatosh and Peryite? Instead, Akaviri dragons would look a little something like http://en.wikipedia.org/wiki/Oriental_dragon.
Then there's the Ka Po' Tun themselves. If you read the http://www.imperial-library.info/pge3/other_lands.shtml, you might notice references to canine pirates, who were among the first of the Akaviri races to make contact with Tamriel.
"But Jara!" you say, "as handsome as you are, you're mistaken! The Ka Po' Tun are feline, not canine!"
Ah, but that's where you're wrong! Please keep in mind that no Tamrielic citizen has ever (supposedly) seen a Ka Po' Tun with their own eyes, merely relying on stories by the Tsaesci. Think, what IRL looks canine to a westerner, but is actually feline? I present... the http://en.wikipedia.org/wiki/Chinese_lion
Now, the actual Ka Po' Tun are clearly tiger-like, as their leader, Tosh Raka is said to be orange with black stripes, but other than http://bulbapedia.bulbagarden.net/wiki/Arcanine_(Pok%C3%A9mon), what's there to say that they don't actually have features more like a Fu Lion? They don't look like any big cat i've ever seen, but they DO look somewhat dog-like.
Another thing to consider, if you've been reading the articles i've linked to, is that both Chinese artistic depictions of lions and dragons are actually rather similar. The Ka Po' Tun are said to be trying to become dragons, but what if they're already distantly related to the Akaviri dragons? It would explain the (theoretically) similar features, and why they even want to become dragons in the first place!
Plus, this case of convergent evolution is a lot more satisfying (to me, at least) than having two races (the Ka Po' Tun and Khajiit) looking basically the same. Humans and Elves I can get, but there's no real reason for two strains of Khajiit developing on opposite ends of Nirn- ignoring the Lilmothiit for now, who at least lived near Elsweyr.