Bothriechis lateralis is a venomous pit viper species found in the mountains of Costa Rica and western Panama. No subspecies are currently recognized.
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.
Bothriechis nigroviridis is a venomous pit viper species found in the mountains of Costa Rica and Panama. No subspecies are currently recognized. The specific name is derived from the Latin niger (black) and viridis (green) in reference to its distinctive color pattern.
Metlapilcoatlus nummifer, commonly known as Mexican jumping pitviper or jumping viper, is a venomous pit viper species endemic to Mexico.
Bothriechis aurifer is a venomous pit viper species found in Mexico and Guatemala. No subspecies are currently recognized.
Ovophis okinavensis, commonly known as the hime habu (ヒメハブ), Ryukyu Island pit viper, and the Okinawan pitviper, is a venomous pitviper species found in the Ryukyu Islands of Japan. No subspecies are currently recognized.
Craspedocephalus puniceus is a venomous pit viper species endemic to Southeast Asia. Common names include: flat-nosed pitviper, flat-nosed pit viper, and ashy pit viper. No subspecies are currently recognized.
Trimeresurus sumatranus is a species of venomous pitviper found in the tropical forests of Indonesia, Malaysia and Thailand. Arboreal by nature, its coloration is pale to neon-green, with some black vertical markings, and a red-tipped tail. As with other vipers, this species has prominent, “keeled” scales, which appear somewhat raised and give the snake a rough-textured appearance. Common names include Sumatran pitviper, Sumatran tree viper, and Sumatran pit viper.
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.
Hypnale nepa, the Sri Lankan hump-nosed viper, is a venomous pitviper species endemic to Sri Lanka where it is known as මූකලන් තෙලිස්සා in Sinhala. Earlier thought that Hypnale walli and Hypnale nepa were two distinct species, but it is now accepted that it is the same species and Hypnale walli is a synonym name. Relatively small, they are distinguished by a strongly upturned snout. No subspecies are currently recognized.
Gloydius ussuriensis is a venomous pitviper species endemic to far east Russia, northeastern China and the Korean Peninsula. No subspecies are currently recognized.
Gloydius brevicauda is a venomous pitviper species endemic to China and the Korean Peninsula.
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 brazili is a venomous pitviper species endemic to South America. There are no subspecies that are recognized as being valid.
Bothriechis thalassinus is a venomous pitviper species native to Guatemala and Honduras.
Ophryacus smaragdinus is a venomous pitviper species endemic to the mountains of eastern Mexico. No subspecies are currently recognized.
Uropeltis shorttii, also known commonly as the Shevaroy Hills earth snake and Shortt's shieldtail snake, is a species of non-venomous snake in the family Uropeltidae. The species is endemic to the southern Eastern Ghats of India. This species was first described as Silybura shorttii by British naturalist Richard Henry Beddome in 1863. It is found only in the Shevaroy Hills of Salem district in Tamil Nadu state in South India. For a long time, this species was misclassified into Uropeltis ceylanica, a snake endemic to the Western Ghats, till a recent taxonomic study proved it to be a distinct species with a very narrow geographic range. It is a burrowing snake, presumed to be nocturnal, feeding on soft-bodied worms. It becomes active during the rains. U. shorttii has most recently been assessed for The IUCN Red List of Threatened Species in 2019, and is listed as "Critically Endangered" under criteria B1ab(iii).
