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Posted by regalringneck on February 17, 2003 at 14:10:39:
In Reply to: Re: Could this be D.c. orizabensis? (PIC) posted by chrish on February 17, 2003 at 13:39:32:
Im liking it for a rubidus too, partic. w/ white anterior ventrals, whereas I would expect oriz. (if it really exists) ought to have the yellow ventrals of erebenus & melanurus...
When I get down to Puerta Vallarta this June, I'll try & get .jpgs of a proper sample :)
:Did I not post my thoughts on this snake under the Mexican Drymarchon posts last month?
:Actually, you did, I just wasn't paying attention to ssp at that moment! And you suggested it could be orizabensis as well. My bad!
:For reference the snake was found in the low foothills. It would be lower down than snakes from Orizaba (depending where in "Orizaba" the specimens were actually taken), but not down as far as the coastal plain. I did see another all black DOR cribo (at high speed) further east towards Minatitlan as well.
:Just looking at the snake and thinking back to my encounters with a rubidus in Sinaloa, I suspect that orizabensis could just be an extension of the population of rubidus that has come across the isthmus through the foothills there (as other pacific coast species do) and run into melanurus when it hit the coast. Just a biogeographical hypothesis, for what it's worth.
