It is in the genus Stagastes, though I'm not 100% sure which one. It may be S. variabilis, though a very dull individual. It has the correct color pattern, including the two black spots, one on the dorsal the other on the top of the base of the tail. It also has the blue/yellow color pattern, but on the ones I have seen it si usually much brighter. The name is variabilis which means variable so that is my guess.