As far as I know there are no color phase differences with Simatar-horned Oryx. There are however many different species of Oryx and most have different body markings. Some ranging from slightly different to DRAMTICALLY different.
As far as I know the Simatar Horned oryx are all similiar to the one we took.
Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.
What's the difference between the Oryx that you took vs. the ones that are running around on White Sands Missle Base (besides the color)?
Funny you should ask this. I was just thinking about these animals the other day so I decided to run a search engine on them. I couldn't tell the difference between the Gemsbok and the Oryx and the search wasn't very helpful. They both look the same to me! Anyone know?