I remember a thread about this a long time ago. The general consensus was that there was only one fish referred to as Trimaculatum. But there was one or two people that were positive that there was a Golden, Green, and Pyro Trimacs and that they had actually had them at one point in time. I still believe that the only difference is the collection points. If you order from a reputable vendor, you should end up with a very nice Trimac regardless. Just be careful of fancy names. Sometimes those fancy names are the ordinary fish that you want in the first place or a hybrid to give the fish a certain look.
I found the thread that I was referring to but I don't know how to post a link to it. Just search for "Pyro or Golden" Trimacs and you'll find it.