Well the lack of any visible spots on the SWF pic, eliminates like half of the Naso species, Vlaminigii, Lopezi, etc. I spent about 15mins searching. The catch is that the SWF pic, it has a blue'ish tint to the tail. I did not find a juvi Brevirostris pic where there was some blue in the caudal. Perhaps it could be just SWF's pic, and their lights or whatever affecting the pic. However on the flip side, I did not find a Unicornis that didn't have the blue spots on the scalpel or scalpels that weren't visible/developed yet.
I think I still stand behind what I said, and chances are that you could receive one of 4 or so different types of Naso under "Blue Hawaiian Tang".
On BZ, well not that I'm implying anything, but per reviews on R¢ about BZ, generally the fish are a bit larger then the listed size. Either way, even if he's 3.5" that's still a juvi which is pretty cool. Not idea they had so many tangs. Gotta swing by more often. The one Brevirostris I did get to see in person was at a LFS in Orlando, it was a large easily 15" adult. They get nice fish from time to time, Blueline Angels, Golden eels, etc. He was over $150.
I got to see a shoal of Unicornis at Georgia Aquarium. Think there's a pic in my GA thread down in aquarium.. Anyway it might have jumped up to my favorite Naso species. They were pretty gorgeous in person, in a nice subtle way. A cross between a Naso and a Dussumier if you will. All the pics I've seen online serve them no justice.
