James,
 
I tried to look at the two westralis on Poppe's site but the site was
not working properly.  I couldn't see any of the Pleurotomaridae.  Maybe
tomorrow.  If you like, I could send you a picture of my P. westralis
for comparison.  I have seen quite a few and there is a certain degree
of variability -- as in most species.  For instance, mine seems to have
a bit more orange coloring than the specimen a friend of mine has.
 
Tom Eichhorst in New mexico, USA