Crap pics, but they show both some of the nice coloration in this species as well as the gular fold extended in the presence of a female.
Note defensive posture . It was standing on stiffened raised front legs and was hissing at me . This was at East Ridge Trail .
This individual is perhaps a female and it was gigantic , about the size of a baseball ! It appeared near the creek just after a very hard rain fell during dry season .
In the road at night . It was 63 degrees F. approximately at the time of observation .
There has been discussion among herpetologists as to whether this is T.sirtalis or T.elegans but I also have photos of the chin shields that show longer rear than front chin shields and note 7 upper labials .