Boa is a genus of boas found in Mexico, the Caribbean, and Central and South America. Five extant species, and one extinct, are currently recognized.
Pituophis catenifer is a species of nonvenomous colubrid snake endemic to North America. Nine subspecies are currently recognized, including the nominotypical subspecies, Pituophis catenifer catenifer, described here. This snake is often mistaken for the prairie rattlesnake, but can be easily distinguished from a rattlesnake by the lack of black and white banding on its tail and by the shape of its head, which is narrower than a rattlesnake's.
Charina is a genus of nonvenomous boas, commonly known as rubber boas, found in North America. Two species are currently recognized.
Simalia is a genus of snakes in the family Pythonidae.
The narrow-headed garter snake, Thamnophis rufipunctatus, is a species of garter snake, endemic to the southwestern United States and adjacent northwestern Mexico. Its common names also include narrowhead garter snake and narrowhead watersnake.
The Venezuela blind snake is a species of snake in the family Leptotyphlopidae.
The small-headed blind snake is a species of snake in the Typhlopidae family.
Sympholis is a genus of snake in the family Colubridae that contains the sole species Sympholis lippiens. It is commonly known as the Mexican short-tail snake.
Scolecophis is a genus of snake in the family Colubridae that contains the sole species Scolecophis atrocinctus. It's genus name is derived from Greek: skolex meaning a worm or grub and ophis meaning snake, referring to what it likes to eat. Its species name is derived from Latin ater meaning black and cingula meaning girdle referring to its physical appearance. It is commonly known as the black-banded snake.
Xyelodontophis is a genus of snake in the family Colubridae that contains the sole species Xyelodontophis uluguruensis. It is commonly known as the dagger-tooth vine snake.
Amnesteophis is a genus of snakes in the family Colubridae that contains the sole species Amnesteophis melanauchen. It is found in Brazil.
Drepanoides is a genus of snake in the family Colubridae that contains the sole species Drepanoides anomalus. It is commonly known as the black-collared snake.
Rhachidelus is a genus of snake in the subfamily Dipsadinae of the family Colubridae. The genus is endemic to South America.
Djokoiskandarus is a genus of snake in the family Homalopsidae that contains the sole species Djokoiskandarus annulata. It is commonly known as the banded water snake.
Mopanveldophis, the Cunene racer, is a genus of snake in the family Colubridae that contains the sole species Mopanveldophis zebrinus. It is found in northern Namibia.
Cercophis is a genus of snake in the family Colubridae that contains the sole species Cercophis auratus. It is called Schlegel's golden snake.
Hensel's snake is a snake endemic to southern Brazil It is monotypic in the genus Ditaxodon.
The Oaxacan cat-eyed snake is a species of snake in the family Colubridae. It is the only species in the genus Tantalophis.
Arcanumophis is a genus of snake in the family Colubridae that contains the sole species Arcanumophis problematicus. the problem ground snake. It is found in Peru. This species was previously placed in the genus Erythrolamprus.
Tachymenoides affinis, the Boulenger's slender snake, is a species of snake endemic to Peru. The species was first described in 1896 and is named after Belgian-British zoologist George Albert Boulenger. T. affinis is ovoviviparous and has been recorded to reach lengths of 454 mm.
