Preface to the Revised Edition Preface to the First Edition Acknowledgments Introduction Conservation Venomous Snakes: Their Venom and Bite Snake Classification and Identification Defining the Snake Making an Identification Aberrant Snakes Naming The Snake Taxonomic Issues Organization of Species and Subspecies Accounts Description of Families Arrangement of Species and Subspecies The Maps Citations Checklist of Texas Snakes Key to the Species of Texas Snakes Species and Subspecies Accounts Family Leptotyphlopidae Threadsnakes New Mexico Threadsnake Plains Threadsnake South Texas Threadsnake Trans-Pecos Threadsnake Family Typhlopidae Blindsnakes Brahminy Blindsnake Family Colubridae Colubrids Kansas Glossy Snake Texas Glossy Snake Painted Desert Glossy Snake Trans-Pecos Ratsnake Western Wormsnake Northern Scarlet Snake Texas Scarlet Snake Buttermilk Racer Tan Racer Eastern Yellow-bellied Racer Mexican Racer Southern Black Racer Tamaulipan Black-striped Snake Prairie Ring-necked Snake Regal Ring-necked Snake Mississippi Ring-necked Snake Texas Indigo Snake Speckled Racer Baird''s Ratsnake Great Plains Ratsnake Southwestern Ratsnake Western Ratsnake Slowinski''s Cornsnake Western Mudsnake Tamaulipan Hook-nosed Snake Chihuahuan Hook-nosed Snake Mexican Hog-nosed Snake Plains Hog-nosed Snake Dusty Hog-nosed Snake Eastern Hog-nosed Snake Chihuahuan Nightsnake Gray-banded Kingsnake Prairie Kingsnake Speckled Kingsnake Desert Kingsnake Louisiana Milksnake Mexican Milksnake New Mexico Milksnake Central Plains Milksnake Cat-eyed Snake Eastern Coachwhip Western Coachwhip Schott''s Whipsnake Ruthven''s Whipsnake Central Texas Whipsnake Gulf Saltmarsh Watersnake Mississippi Green Watersnake Blotched Watersnake Broad-banded Watersnake Florida Watersnake Brazos Watersnake Concho Watersnake Diamond-backed Watersnake Midland Watersnake Rough Greensnake Smooth Greensnake Sonoran Gophersnake Bullsnake Louisiana Pinesnake Graham''s Crayfish Snake Gulf Crayfish Snake Long-nosed Snake Big Bend Patch-nosed Snake Mountain Patch-nosed Snake Texas Patch-nosed Snake Variable Groundsnake Southern Texas Groundsnake Marsh Brownsnake Texas Brownsnake Florida Red-bellied Snake Mexican Black-headed Snake Trans-Pecos Black-headed Snake Flat-headed Snake Smith''s Black-headed Snake Plains Black-headed Snake Western Black-necked Gartersnake Eastern Black-necked Gartersnake Checkered Gartersnake Orange-striped Ribbonsnake Arid Land Ribbonsnake Gulf Coast Ribbonsnake Red-striped Ribbonsnake Plains Gartersnake Eastern Gartersnake Texas Gartersnake Red-sided Gartersnake Texas Lyresnake Northern Lined Snake Central Lined Snake Texas Lined Snake Rough Earthsnake Western Smooth Earthsnake Texas Venomous Snakes Family Elapidae Coralsnakes and Their Allies Texas Coralsnake Family Viperidae Vipers Southern Copperhead Broad-banded Copperhead Trans-Pecos Copperhead Western Cottonmouth Western Diamond-backed Rattlesnake Timber Rattlesnake Mottled Rock Rattlesnake Banded Rock Rattlesnake Northern Black-tailed Rattlesnake Mohave Rattlesnake Prairie Rattlesnake Desert Massasauga Western Massasauga Western Pygmy Rattlesnake Glossary References Index of Common Names Index of Scientific Names.