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Posted by Tom Lott on September 25, 2002 at 20:22:20:
In Reply to: bairdi/lindheimeri intergrades, anyone? posted by Shaky on September 24, 2002 at 21:21:21:
Pardon the quality of these images. They are from 1966 and I was just learning 35mm photography back then.
Since they are in B & W, I will state that, in coloration, this snake was typical bairdi, very light gray with considerable orange on the skin and even the top of the head (unlike the black/gun metal gray color with pinkish/rosy skin color of lindheimeri).
The body form of this specimen (robust like lindheimeri, rather than slightly more gracile as in bairdi) was the main factor in my designating it as an intergrade/hybrid. The retained blotches are not uncommon in bairdi but those on this individual appeared to be more square (as in lindheimeri). It was a large specimen, 2" less than 5 ft in length. It was collected in Bandera County, TX, about 5 mi E of the town of Bandera. In disposition, also, it was typically bairdi, hardly biting once it was in hand.
Interestingly, I have seen a number of specimens from the Sabinal Canyon (just to the south of Chris' specimen) that appeared very similar to his photo (very dark; almost black), but I considered them to be merely melanistic lindheimeri (no photos, unfortunately).
Tom Lott
