Common Snakes Identification Guide for the Houston Area
Guide to distinguishing venomous and nonvenomous species common to the Houston area. Physical descriptions from Texas Snakes: A Field Guide, James R. Dixon and John E. Werler, University of Texas Press, 2000.
Northern Cottonmouth
1
Agkistrodon piscivorus
Eastern Copperhead
1
Agkistrodon contortrix
Texas Coral Snake
2
Micrurus tener
Western Diamondback Rattlesnake
2
Crotalus atrox
Timber Rattlesnake
2
Crotalus horridus
Pygmy Rattlesnake
3
Sistrurus miliarius
Western Rat Snake
2
Pantherophis obsoletus
Plain-bellied Watersnake
4
Nerodia erythrogaster
Diamondback Water Snake
2
Nerodia rhombifer
Broad-banded Water Snake
2
Nerodia fasciata confluens
Rough Earthsnake
5
Haldea striatula
Dekay's Brownsnake
6
Storeria dekayi
Western Ribbon Snake
7
Thamnophis proximus
Eastern Hognose Snake
2
Heterodon platirhinos
Rough Green Snake
7
Opheodrys aestivus
Speckled Kingsnake
8
Lampropeltis holbrooki
Western Coachwhip
9
Coluber flagellum testaceus
Eastern Yellow-bellied Racer
3
Coluber constrictor flaviventris
Graham's Crayfish Snake
2
Regina grahamii
Prairie Kingsnake
2
Lampropeltis calligaster calligaster
Glossy Swampsnake
10
Liodytes rigida
