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Posted by KJUN on May 05, 2003 at 22:39:51:
In Reply to: excuse me, common intergrade posted by snakepimp on May 05, 2003 at 11:47:11:
Corns are classified as Elaphe guttata and Great Plains are classified as Elaphe emoryi. There are two recognized subspecies of Great plains (Elaphe emoryi emoryi and Elaphe emoryi meahllmorum). The central Louisiana and east Texas population of the guttata-complex are probably going to end up being classified as a subspecies of the cornsnake, or Elaphe guttata slowenskii. Either way, Elaphe guttata (exclusive of slowenskii) and Elaphe emoryi do NOT overlap in the wild. Elaphe slowenksii has no known gene flow with the eastern populations of Elaphe guttata and little, if any, gene flow with Elaphe emoryi spp. I believe the gene flow from slowenskii to emoryi spp. is greater than current researcher are implying, though.
If you are like me and agree with the Elaphe to Pantherophis switch, just change Elaphe in the above paragraph to Pantherophis....lol.