The copperhead (Agkistrodon contortrix) is a venomous pit viper endemic to eastern North America; it is a member of the subfamily Crotalinae in the family Viperidae. As a common species within its range, it may be encountered by humans. Unlike other...
The Brahminy blind snake (Indotyphlops braminus) is a nonvenomous blind snake species found mostly in Africa and Asia. It has also been introduced in many other parts of the world. They are completely fossorial (i.e., burrowing) animals, with habits...
The Smooth green snake (Opheodrys vernalis) is a North American nonvenomous snake in the family Colubridae. It is small to medium in size and gets its common name from its smooth dorsal scales. A non-aggressive snake, it seldom bites and usually...
The Mojave rattlesnake (Crotalus scutulatus) is a highly venomous pit viper species found in North America. It is perhaps best known for its potent neurotoxic-hemotoxic venom, which is considered one of the world's most potent rattlesnake venoms.
The Texas rat snake (Pantherophis obsoletus lindheimeri ) is a subspecies of rat snake, a nonvenomous colubrid found in the United States, primarily within the state of Texas, but its range extends into Louisiana, Arkansas and Oklahoma. It...
The Mud snake (Farancia abacura) is a nonvenomous, semiaquatic snake native to the southeastern United States. This snake spends most of its time in the water but hibernates in cavities in soil or old tree stumps.
Agkistrodon contortrix mokasen was formerly a venomous pit viper subspecies found in the eastern United States. However, recent taxonomic changes do not recognize the northern copperhead (A. c. mokasen ) as a valid taxon.
The Speckled kingsnake (Lampropeltis holbrooki) is a nonvenomous snake which is native to the United States. Its common name is derived from its pattern and this snake is also known as the "salt-and-pepper snake".
The Texas brown snake (Storeria dekayi texana), a subspecies of Storeria dekayi, is a nonvenomous snake in the family Colubridae. It is endemic to North America.
Drymarchon melanurus erebennus, commonly known as the Texas Indigo Snake, is a subspecies of large, nonvenomous snake in the family Colubridae. The subspecies is native to Texas and adjacent Mexico.
The northern redbelly snake (Storeria occipitomaculata occipitomaculata ) is a nonvenomous snake in the family Colubridae, a subspecies of Storeria occipitomaculata. It is sometimes referred to as a fire snake. It is endemic, North America and The...
Micrurus tener, commonly known as the Texas coral snake, is a species of venomous snake in the family Elapidae. The species is endemic to the southern United States and northeastern and central Mexico. Five subspecies are recognized as being valid,...
The Florida banded water snake (Nerodia fasciata pictiventris ), a subspecies of the banded water snake (southern water snake - Nerodia fasciata ), is a nonvenomous natricine colubrid native to the southeastern United States.
The western cottonmouth (Agkistrodon piscivorus leucostoma ) was once classified as a subspecies of the cottonmouth (Agkistrodon piscivorus ). However, DNA based studies published in 2008 and 2015, revealed no significant genetic difference between...
Coluber constrictor flaviventris, commonly known as the eastern yellow-bellied racer, is a subspecies of the eastern racer, non-venomous colubrid snake. It is endemic to North America.
The Texas garter snake (Thamnophis sirtalis annectens ) is a subspecies of the common garter snake (T. sirtalis ) endemic to the United States.
The Southwestern blackhead snake (Tantilla hobartsmithi) is a harmless small colubrid snake found only in the United States and Mexico. The part of its scientific name 'hobartsmithi', is in honor of American zoologist and herpetologist Hobart M....
Graham's crayfish snakes (Regina grahamii) are nonvenomous semiaquatic snakes found only in the central United States. They are named after their primary choice of diet.
Agkistrodon laticinctus is a venomous pit viper species, formerly considered a subspecies of Agkistrodon contortrix, which is found in the southern United States, from Kansas, through Oklahoma and throughout central Texas.
Pituophis catenifer affinis, commonly known as the Sonoran gopher snake, is a nonvenomous subspecies of colubrid that is endemic to the southwestern United States. It is one of six recognized subspecies of the gopher snake, Pituophis catenifer.
Bitis parviocula is a venomous viper species found only in Ethiopia. It is large with a broad head and spectacular geometric markings. In 1995, the species was known from only three specimens, but additional information has surfaced since then....
Sistrurus catenatus tergeminus is a venomous pit viper subspecies found in the southwestern plains of the United States. In some areas its range overlaps that of another subspecies, S. c. edwardsii, and intergrading of the two is not unknown.
Agkistrodon contortrix pictigaster was formerly a venomous pit viper subspecies found in the Trans-Pecos region of the United States in western Texas, and northeastern Mexico. However, recent taxonomic changes do not recognizes the Trans-Pecos...
Thamnophis proximus rubrilineatus, the redstripe ribbon snake, is a subspecies of the western ribbon snake, a garter snake endemic to the southern United States.
Coluber constrictor anthicus, commonly known as the buttermilk racer, is a subspecies of the eastern racer, a nonvenomous colubrid snake, endemic to the southern United States.
Sistrurus catenatus edwardsii is a subspecies of venomous pit viper in the family Viperidae. The subspecies is endemic to the Southwestern United States and northern Mexico. In places, its range overlaps that of S. c. tergeminus, and intergrading of...
Sistrurus miliarius streckeri is a venomous pit viper subspecies found in the southcentral United States.
Crotalus lepidus klauberi is a venomous pitviper subspecies endemic to the southwestern United States and adjacent northern Mexico.
Cemophora coccinea copei, commonly known as the northern scarlet snake, is a subspecies of harmless colubrid snake that is native to the southern and eastern United States.
Diadophis punctatus arnyi, also known commonly as the prairie ringneck snake, is a subspecies of small, thin snake in the family Dipsadidae. The subspecies is native to the Midwestern United States.
Rhinocheilus lecontei tessellatus is a subspecies of nonvenomous colubrid snake, which is endemic to the western United States and northern Mexico.
Nerodia paucimaculata, commonly known as the Concho water snake, is a species of mostly aquatic, nonvenomous snake in the family Colubridae. The species is endemic to Texas in the United States.
Coluber constrictor etheridgei, commonly known as the tan racer, is a nonvenomous colubrid snake, a subspecies of the eastern racer (Coluber constrictor ). It is endemic to the southern United States.
Coluber constrictor oaxaca, commonly known as the Mexican racer, is a nonvenomous colubrid snake, a subspecies of the eastern racer (Coluber constrictor ).
The Texas scarlet snake (Cemophora lineri ) 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.
Arizona elegans arenicola, commonly known as the Texas glossy snake, is a subspecies of glossy snake, a nonvenomous colubrid snake endemic to North America.
Arizona elegans philipi, commonly known as the Painted Desert glossy snake, is a subspecies of glossy snakes, a nonvenomous colubrid endemic to North America.
