:Yes, I like it very much.  You're right that there will probably be a way to improve it further, but that's very well done for now.  Sorry about my typos and such and thanks for fixing them.   
 We still need  to track down the origial paper, "Ramsay, 1879", which MSW3 sites as the original naming authority.  There, we should be able to find a more detailed anatomical analysis. I've tried and tried with no success.   

 We still don't know what happened to it, although I doubt if either of us would revert the other if he came out and said that they seem to be no more, having likely been interbred out of existence with non-native dogs.  We could, I suppose, both be wrong about that, so we should probably hold off.  Do you know anyone in PNG who we could ask?  For all I know, they may be wandering the streets of the capital to this day, right under everyone's noses.  Stranger things have happened. 

 BTW, I saw my first Norwegian Elkhound today.  Very interesting! 

 Back to "papauensis", if we added something to the var. "halistromi" section, we could say something less dramatic and more encyclopedic but still to the effect of "deep within the remote highland valleys, another...."  Then that might relieve some of the pressure on the papauensis section to stave of an innocent reader's conflation.