Not that my searching has been exhaustive, but for all the talk I've had with herpers down there and reading the forums, I was very surprised at the near total absence of literature on the intergrade area in the Carolinas. Apparently you guys are THE main source of information on this topic although that does make it a little more subjective (what one considers an intergrade may not be to another, and I'm guessing none of us herp a very large range consistently enough to lay down very distinct boundaries between morphological varieties).

I have a friend working on his PhD in a herp lab in NC right now. I'll have him check to see what he can find in the literature because I can't believe no one has devoted so much as a graduate thesis to the intergradation of yellow and black rats in that area by now.

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