Gavin: Well I thought it was quite different from any Leptophis mexicanus or any Leptophis I've had or seen and it sure does not have the pointed head and a different pattern, and even behaves differently, but I looked up some photographs and some web pages had similiar appearing snakes like this identified as a mexicanus. And checking with other sources said it was a mexicanus? But I will be in contact shortly for more information on them. I believe that you are correct. Thanks.

Dan