Can't agree more the caudo is easy to identify, the first pic look pretty much like a fuz(I'm still confused about the fuzhongensis/guanxiensis mess though...)
The third pic is way to blurred out to identify, but I get the impression that it is not a fuz...
Talking about the latest pics.
About the earlier pics, the two first pics of a newt is the same newt as pic number 1 or 3 of the latest pics??
My first reaction was that it was a pic of a hongkongensis or a fuz., the latter pics however doesn't have a hongkongensis so it must be pic 1 the fuz(?) or?