Tropidoclonion is a genus of snake in the subfamily Natricinae of the family Colubridae. The genus is monotypic, containing the sole species Tropidoclonion lineatum, commonly known as the lined snake. The species is endemic to North America.
The eastern hog-nosed snake, also known as the spreading adder and by various other common names, is a species of mildly venomous rear-fanged snake in the family Colubridae. The species is endemic to North America. There are no subspecies that are recognized as being valid.
The Trans-Pecos rat snake or Davis Mountain rat snake, is a species of medium to large, nonvenomous rat snake in the family Colubridae. Bogertophis subocularis is endemic to the Chihuahuan Desert.
Cemophora coccinea, commonly known as the scarlet snake, is a species of nonvenomous snake in the family Colubridae. The species is native to the southeastern United States. There are two subspecies of C. coccinea that are recognized as being valid. The Texas scarlet snake was previously considered a subspecies.
Ficimia is a genus of colubrid snakes commonly known as hooknose snakes or hook-nosed snakes, which are endemic to North America. There are seven species within the genus.
The Texas garter snake is a subspecies of the common garter snake. The subspecies, which belongs to the subfamily Natricinae of the family Colubridae, is native to the western United States.
Sistrurus miliarius, commonly called the pygmy rattlesnake, is a species of venomous snake in the subfamily Crotalinae of the family Viperidae. The species is endemic to the Southeastern United States. Three subspecies are currently recognized.
Hypsiglena jani, commonly known as the Texas night snake or the Chihuahuan night snake, is a small species of mildly venomous snake in the family Colubridae. The species is native to the southwestern United States and adjacent northeastern Mexico.
Coluber constrictor etheridgei, commonly known as the tan racer, is a subspecies of nonvenomous snake in the family Colubridae, a subspecies of the eastern racer. The subspecies is native to the southern United States.
The Texas scarlet snake is a species of nonvenomous snake in the family Colubridae. The species is endemic to the South Central United States. It was previously considered a subspecies of Cemophora coccinea.
The Texas lined snake is a subspecies of nonvenomous snake in the subfamily Natricinae of the family Colubridae. The subspecies is endemic to the United States.
The Texas lyre snake is a species of mildly venomous, rear-fanged snake in the family Colubridae. The species is endemic to the southwestern United States and adjacent northern Mexico.
The western ground snake is a species of small, harmless colubrid snake. The species is endemic to North America. It is sometimes referred to as the common ground snake or variable ground snake, as its patterning and coloration can vary widely, even within the same geographic region. Another common name is miter snake referring to the head marking which suggests a bishop's miter; the synonym "episcopus " is a similar allusion.
Pantherophis bairdi is a species of harmless snake in the family Colubridae. The species is native to the southwestern United States and adjacent northeastern Mexico. No subspecies are recognized as being valid.
The western hognose snake is a species of snake in the family Colubridae. The species is endemic to North America.
Gyalopion canum, commonly known as the Western hooknose snake, is a species of small colubrid snake endemic to the deserts of the United States and Mexico. It is sometimes referred to as the Chihuahuan hook-nosed snake because it is commonly found in the Chihuahuan Desert.
The smooth earth snake is a species of nonvenomous natricine colubrid snake native to the eastern half of the United States.
The Brazos water snake, also called commonly Harter's water snake, is a species of mostly aquatic, nonvenomous snake in the family Colubridae. The species is endemic to Texas in the United States.
Sistrurus miliarius streckeri is a venomous pit viper subspecies found in the southcentral United States.
The southern ribbon snake(Thamnophis saurita sackenii), also known commonly as the peninsula ribbon snake and the Florida ribbon snake, is a subspecies of garter snake in the family Colubridae. It is one of four subspecies of the ribbon snake.
