Hi Mark,
As we both know it is impossible to taxonomically differentiate sub species from color alone. But from the complete absence of speckling on the body & tail, and also that no private individual has H.h.charlesbogertti I would say it is H.h.horridum. How ever I am sure if you saw enogh animals from every local that they inhabit you could find a specimen from all four sub species that would resemble the one that you are holding.
Take care brother,
Steve

HorridumAngeli's Beaded Lizard Web Site