Texas. Copperhead Agkistrodon contortrix. Common NameCopperhead. Cottonmouth Agkistrodon piscivorus. Common NameCottonmouth. Glossy Snake Arizona elegans. Trans-Pecos Rat Snake Bogertophis subocularis. Western Worm Snake Carphophis vermis. Scarlet Snake Cemophora coccinea. Racer Coluber constrictor. Sc.t 's Whipsnake . - Website created toist in the identification of snakes in North Texas. North TX snakes can be difficult to ID. This website can help with the ."Special thanks for identifying our snake! My daughter walked on the dock and didn 't see the snake until she was quite close. As soon as she saw it, she let out a .Timber Rattlesnake 5. Crotalus horridus. Western Pygmy Rattlesnake 6. Sistrurus miliarius streckeri. Eastern Hognose Snake 7. Heterodon platirhinos. Blotched Water Snake 1. Nerodia erythrogaster transversa..