Aransas National Wildlife Refuge, along Gulf Coast, north of Corpus Christi, Texas.
11 May 2010.
It's the same species that is found in the southeast USA, but green.
Looking at range maps, the green subspecies of this lizard is not suppose to be found in this part of Texas. If I have this id'ed wrong, I'd appreciate a correction. Checking online photos, I do find green examples of this species along the Gulf Coast of Texas.