GENUS Agkistrodon
Southern Copperhead - Agkistrodon contortrix contortrix
Western Cottonmouth - Agkistrodon piscivorus leucostoma
GENUS Micrurus
Texas Coral Snake - Micrurus fulvius tener
GENUS Crotalus
Western Diamondback Rattlesnake - Crotalus atrox
Timber Rattlesnake - Crotalus horridus
GENUS Sistrurus
Western PigmyRattlesnake - Sistrurus miliarius streckeri
GENUS Tantilla
Flat-headed Snake - Tantilla gracilis
GENUS Storeria
Texas Brown Snake - Storeria dekayi texana
Marsh Brown Snake - Storeria dekayi limnetes
GENUS Virginia
Rough Earth Snake - Virginia striatula
GENUS Diadophis
Mississippi Ringneck Snake - Diadophis punctatus stictogenys
GENUS Sonora
Ground Snake - Sonora semiannulata
GENUS Thamnophis
Eastern Garter Snake - Thamnophis sirtalis sirtalis
Western Ribbon Snake - Thamnophis proximus proximus
GENUS Nerodia
Diamondback Water Snake - Nerodia rhombifer rhombifer
Yellowbelly Water Snake - Nerodia erythrogaster flavigaster
Blotched Water Snake - Nerodia erythrogaster transversa
Broad-banded Water Snake - Nerodia fasciata confluens
Mississippi Green Water Snake - Nerodia cyclopion
GENUS Regina
Graham's Crayfish Snake - Regina grahamii
Gulf Crayfish Snake - Regina rigida sinicola
GENUS Farancia
Western Mud Snake - Farancia abacura reinwardtii
GENUS Opheodrys
Rough Green Snake - Opheodrys aestivus
GENUS Liochlorophis
Western Smooth Green Snake - Liochlorophis vernalis
GENUS Masticophis
Eastern Coachwhip - Masticophis flagellum flagellum
Western Coachwhip - Masticophis flagellum testaceus
GENUS Coluber
Buttermilk Racer - Coluber constrictor anthicus
Eastern yellowbelly Racer - Coluber constrictor flaviventris
GENUS Heterodon
Eastern Hognose Snake - Heterodon Platirhinos
Dusty Hognose Snake - Heterodon nasicus gloydi
GENUS Elaphe
Texas Rat Snake - Elaphe obsoleta lindheimeri
Great Plains Rat Snake - Elaphe guttata emoryi
GENUS Lampropeltis
Prairie Kingsnake - Lampropeltis calligaster calligaster
Speckled Kingsnake - Lampropeltis getula holbrooki
Louisiana Milksnake - Lampropeltis triangulum amaura