I'll have to disagree with you on the simplification issue Lou. In the past few years the number of species of horned lizards has gone from 13 to 18. Wth P. goodei you can't even distinguish it from platyrhinos without a DNA test unless you have locality info. We showed some pics to the guy who wrote the article and he confirmed this to us. I thought naming species was for the purpose of distinguishing common groups for identification. This DNA thing is getting way out of line. Whats next,Are they going to start naming individual lizards as species because of DNA.