What a unique animal. The Sulpher was proven dominant in 2005 by David Reid. To-date (2007) a Homozygoous form has not been produced, so wether or not this is a co-dominant mutation has yet to be proven. This is primarily a color morph, that gives the animal tan and black colors and is also characterized by blushing on in the black dorsal patterned areas and flames on the sides of the animal. We have seen crosses between the Sulpher and Pastels, Mojaves and Yellow Bellies. We will be making plenty of Sulphers in 2008, and holding back females in hopes that there is a cool looking "super". There is still alot to be done with this morph.