You're welcome.
Basically the reason we got two words for armadillo-like animals is that a word for "armadillo", and by extension "pillbug", was needed when Lieven L. Litaer was translating _Alice in Wonderland_, so Marc Okrand gave us *woSwa* . . . meanwhile, there was already a request for a Klingon xenarthran animal that had been brewing for some time at the chabal tetlh. Except this was an animal that resembled an armadillo, an anteater, and a sloth all in one. That qep'a' came later that same year, as I recall, and in his description, Okrand said a *tlhuHtuch* resembled an armadillo quite a lot, an anteater or sloth considerably less.
Personally, I always thought "armadillo", "anteater", and "sloth" should be separate requests. It's obvious that a bee and wasp are related, since they're both stinging social insects with orange/yellow and black stripes, and it's obvious that a deer and moose are related, since they're both ruminants with antlers, along with the same basic body form. And the words for "octopus" and "squid" are the same in some languages (like Hawaiian, I think). They both have rubbery bodies with eight tentacles and a head. It's NOT obvious that an armadillo, anteater, and sloth are related just by looking at them. I personally had no idea the three were grouped together in an order called Xenarthra until I was 14 and studied taxonomy. When Klingons developed their proto-Klingon words for the equivalent animals on Kronos, they probably didn't know the three were related either.
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>Thank, I didn't know about this one.
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>(https://klingon.wiki/En/NewWordsQepa30)
> ?[anteater, sloth, armadillo] These are, of course, Terran animals. There is, however, a Klingon creature that more or less looks like an
>armadillo (though not so much like the others) called a {tlhuHtuch}.?