Bothrops atrox — also known as the common lancehead, fer-de-lance, barba amarilla and mapepire balsain — is a highly venomous pit viper species found in the tropical lowlands of northern South America east of the Andes, as well as the Caribbean island of Trinidad. No subspecies are currently recognized.
The Aniliidae are a monotypic family created for the monotypic genus Anilius that contains the single species Anilius scytale. Common names include the American pipe snake and false coral snake. It is found in South America. This snake possesses a vestigial pelvic girdle that is visible as a pair of cloacal spurs. It is ovoviviparous. It is non-venomous, and its diet consists mainly of amphibians and other reptiles. Two subspecies are recognized, including the nominate subspecies described here.
Bothriechis is a genus of venomous pit vipers, commonly called palm vipers or palm-pitvipers found predominantly in Mexico and Central America, although the most common species, B. schlegelii, ranges as far south as Colombia and Peru. All members are relatively slender and arboreal. The name Bothriechis is derived from the Greek words bothros and echis that mean "pit" and "viper" respectively. Ten species and no subspecies are currently generally recognized.
Bothrops barnetti, also known commonly as Barnett's lancehead and Barnett's pit viper, is a species of venomous snake, a pit viper in the subfamily Crotalinae of the family Viperidae. The species is endemic to Peru. There are no subspecies that are recognized as being valid.
Crotalus simus is a venomous pit viper species found in Mexico and Central America. The specific epithet is Latin for "flat-nosed", likely because its head is blunt compared with lanceheads (Bothrops). Three subspecies are recognized, including the nominate subspecies described here.
Bothrops jararaca—known as the jararaca or yarara—is a highly venomous pit viper species endemic to South America in southern Brazil, Paraguay, and northern Argentina. The specific name, jararaca, is derived from the Tupi words yarará and ca, which mean 'large snake'. Within its geographic range, it is often abundant and is an important cause of snakebite. No subspecies are currently recognized.
Bothrops pirajai is a species of venomous snake, a pit viper in the subfamily Crotalinae of the family Viperidae. The species is endemic to Brazil. There are no subspecies that are recognized as being valid.
Bothriechis rowleyi is a species of pit viper, a venomous snake, in the subfamily Crotalinae of the family Viperidae. The species is endemic to Mexico. There are no subspecies that are recognized as being valid.
Porthidium nasutum is a venomous pitviper species found in southern Mexico, Central America and northern South America. No subspecies are currently recognized.
Bothrops bilineatus, also known as the two-striped forest-pitviper, parrotsnake, Amazonian palm viper, or green jararaca, is a highly venomous pit viper species found in the Amazon region of South America. Two subspecies are currently recognized, including the nominate subspecies described here. A pale green arboreal species that may reach 1 m (3.3 ft) in length, it is an important cause of snakebite throughout the entire Amazon region.
Porthidium ophryomegas is a venomous pitviper species found in Central America. No subspecies are currently recognized.
Bothrops medusa is a venomous pitviper species endemic to Venezuela. No subspecies are currently recognized.
Bothrops oligolepis is a venomous pitviper species found in Peru and Bolivia. The specific name is derived from the Greek words oligo and lepis, meaning "few scales"; probably an allusion to the lower numbers of dorsal and ventral scales that it has compared to B. bilineatus. No subspecies are currently recognized.
Bothrops pulcher is a venomous pitviper species found in South America. The specific name is Latin, meaning "beautiful", in reference to the color pattern. No subspecies are currently recognized.
Bothrops punctatus is a venomous pitviper species found in Ecuador, Mostly in the Chocó Department in Western Colombia and Panama. No subspecies are currently recognized.
Bothrops bilineatus smaragdinus is a venomous pitviper subspecies found in the northern and western Amazon region of South America.
Bothrops taeniatus lichenosus is a venomous pitviper subspecies endemic to South America and known only from one locality in Bolívar State, Venezuela.
Bothrops brazili is a venomous pitviper species endemic to South America. There are no subspecies that are recognized as being valid.
Bothrocophias campbelli, commonly known as Campbell's toadheaded viper, the Ecuadorian toadheaded pitviper, and víbora boca de sapo in Spanish, is a species of venomous pitviper in the family Viperidae. The species is endemic to South America. No subspecies are currently recognized.
Bothrocophias microphthalmus, or the small-eyed toad-headed pit viper, is a species of venomous snake in the family Viperidae. The species is endemic to northwestern South America.
