Coluber flagellum
One of the longer snake species in the U.S., a fast-moving species that often evades capture. Previously recognized in the genus Masticophis.
An adult male between Interstate 10 and Hachita, southwestern Luna County, New Mexico, 22 Aug 2010.
Another view of the same critter, 22 Aug 2010.
A pinkish species near Big Bend Ranch State Park, Presidio County, Texas, 24 Apr 2005.
Same critter as above, 24 Apr 2005.