CK,
The current researcher mentioned something to the effect that the relationship between the Rosy, Calabar, and Rubber Boa are different from what Javier portrayed them in his mtDNA paper.

Also, what information tells you that it was the Rosy Boa that evolved from the Rubber Boa and not the reverse? And isn't there the possibility that both species arose from some common ancestor?

Correct me if I am mistaken but I believe you have mentioned that mtDNA results provide a clue to the age of various lineages. So if that is correct, taking in account the explanation
for Fig. 4 in the Rodriguez-Robles paper along with the relative lengths of the arms of his ML tree, can it be inferred:
1) That the Southern Clade is older than the Northern Clade and that the latter arose from the former? (You have already stated this before.)
2) That the Northwestern subclade is older than the Sierra Nevada subclade?
3) That samples 15, 17, 18, 19, and 26 are older than all other tested samples of the Sierra Nevada subclade?
4) That sample 26 is the oldest member of the Sierra Nevada subclade?

Richard F. Hoyer

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