Until we have DNA evidence to suggest otherwise, I consider the 'rufescens' phase to be a locality based wild type phenotype (similar to 'dodoma' kenyans, etc...). So in simple terms.... I consider them to be the same species (Eryx colubrinus) until proven otherwise.

I agree. Same thing is true of loveridgei as well. They are all just Eryx colubrinus (my problem with Gongylophis is a separate issue).
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Chris Harrison
San Antonio, Texas