Atropoides is a genus of venomous pit vipers endemic to Mexico and Central America. Six species are currently recognized. The common names suggest they are able to leap at an attacker, but this is likely exaggerated. Common names for the species include jumping pitvipers and jumping vipers.
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.
Cerrophidion is a genus of venomous pitvipers which are endemic to southern Mexico, Central America, and western Panama. The generic name, Cerrophidion, is derived from the Spanish word cerro, which means "mountain", and the Greek word ophidion, which means "small snake". Two species are currently recognized, but no subspecies.
Porthidium is a genus of venomous pitvipers found in Mexico and southward to northern South America. The name is derived from the Greek word portheo and the suffix -idus, which mean "destroy" and "having the nature of", apparently a reference to the venom. As of August 2016 nine species are recognized as being valid. The snakes of the genus Hypnale in southern India and Sri Lanka look quite similar to those of this genus, possibly an example of convergent evolution.
Bothrops ammodytoides is a venomous pit viper species endemic to Argentina. No subspecies are currently recognized.
Atropoides picadoi is a species of venomous snake, a piviper in the subfamily Crotalinae of the family Viperidae. The species is endemic to Central America. There are no subspecies that are recognised as being valid.
Cerrophidion tzotzilorum is a venomous pit viper species endemic to southern Mexico. No subspecies are currently recognized.
Porthidium dunni is a species of venomous pitviper in the family Viperidae. The species is endemic to Mexico. There are no recognized subspecies.
Porthidium hespere is a venomous pitviper species found in western Mexico. No subspecies are currently recognized.
Porthidium nasutum is a venomous pitviper species found in Mexico, Central America and northern South America. No subspecies are currently recognized.
Porthidium yucatanicum is a venomous pitviper species found in Mexico. No subspecies are currently recognized.
Bothrops taeniatus, the speckled forest-pitviper, is a species of pit viper found in the equatorial forests of South America. The specific name, taenia, is derived from the Greek word, tainia, meaning ribbon bandage or stripe, in reference to the slender body. Two subspecies are currently recognized, including the nominate subspecies described here.
Lachesis stenophrys is a venomous pit viper species endemic to Central America. The specific name, stenophrys, is derived from the Greek words stenos, meaning "narrow", and ophrys, meaning "brow" or "eyebrow". No subspecies are currently recognized.
Porthidium ophryomegas is a venomous pitviper species found in Central America. No subspecies are currently recognized.
Porthidium volcanicum, the Ujarran hognosed pitviper, is a venomous pitviper species endemic to Costa Rica. 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 South America 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.
Bothrocophias campbelli, commonly known as Campbell's toadheaded viper or the Ecuadorian toadheaded pitviper, is a species of venomous pitviper in the family Viperidae. The species is endemic to South America. No subspecies are currently recognized.
