Family

Viperidae

159 species · Animals

🔍 How to identify Viperidae →

Animalia › Chordata › Squamata › › Viperidae

Spot-tailed Pitviper

Trimeresurus erythrurus (Cantor, 1839)

Trimeresurus erythrurus is a green, sexually dimorphic pit viper found in parts of South and Southeast Asia.

White-lipped Island Pitviper

Trimeresurus insularis Kramer, 1977

Trimeresurus insularis is an arboreal pit viper found in dry monsoon forests of eastern Indonesian islands and Timor-Leste.

Kramer's Pit Viper

Trimeresurus macrops Kramer, 1977

Trimeresurus macrops is a large-eyed green pit viper found in parts of Southeast Asia.

Sumatra Pit Viper

Trimeresurus sumatranus (Raffles, 1822)

Trimeresurus sumatranus is a large arboreal pitviper found in lowland forests of Southeast Asia.

Ruby-eyed Green Pitviper

Craspedocephalus rubeus (Malhotra, Thorpe, Mrinalini & Stuart, 2011)

The ruby-eyed green pitviper (Craspedocephalus rubeus) is a venomous pit viper endemic to Southeast Asia.

Pygmy Rattlesnake

Sistrurus miliarius Linnaeus, 1766

Sistrurus miliarius (the pygmy rattlesnake) is a small bulky viper found in the southeastern United States in varied vegetated habitats.

Eastern Massasauga

Sistrurus catenatus (Rafinesque, 1818)

Sistrurus catenatus (eastern massasauga) is a small North American rattlesnake now found in isolated populations across its former range.

Western Massasauga

Sistrurus tergeminus (Say, 1823)

Sistrurus tergeminus is a species with documented size variation and a defined distribution across the southwestern US and northern Mexico.

Brown spotted pitviper

Protobothrops mucrosquamatus (Cantor, 1839)

Protobothrops mucrosquamatus is a venomous pit viper species native to South and East Asia, introduced to Okinawa, Japan.

Jerdon's Pitviper

Protobothrops jerdonii (Günther, 1875)

Protobothrops jerdonii is an Asian pit viper with recorded mixed descriptions of viviparous or ovoviviparous reproduction.

Habu

Protobothrops flavoviridis (Hallowell, 1861)

Protobothrops flavoviridis, the Okinawa habu, is the largest pit viper in its genus, native to Japan's Ryukyu Islands and used to make medicinal habushu liquor.

Elegant pitviper

Protobothrops elegans (Gray, 1849)

Protobothrops elegans is a pitviper found in southern Japanese Ryukyu Islands, with recorded bites and one fatality from 1965 to 2011.

Yucatán Hognose Viper

Porthidium yucatanicum (Smith, 1941)

Porthidium yucatanicum is a moderately stout terrestrial viper found in the northern Yucatán Peninsula, Mexico.

Rainforest Hognose Viper

Porthidium nasutum (Bocourt, 1868)

Porthidium nasutum is a moderately stout terrestrial pitviper found in lowland forests from southern Mexico to northwestern South America.

Slender Hognose Viper

Porthidium ophryomegas (Bocourt, 1868)

Porthidium ophryomegas is a Central American pit viper with defined size, color patterns, and ovoviviparous reproduction.

Lansberg's Hognose Viper

Porthidium lansbergii (Schlegel, 1841)

Porthidium lansbergii is a moderately slender terrestrial viviparous snake found in Central and northern South America.

Dunn's Hognose Viper

Porthidium dunni (Hartweg & Oliver, 1938)

Porthidium dunni is a moderately stout terrestrial ovoviviparous viper found in southern Mexican Pacific lowlands.

Chinese Mountain Pit Viper

Ovophis monticola (Günther, 1864)

Ovophis monticola is a stout Asian pit viper with distinct scale patterns and regional scale count variations.

Okinawa Pitviper

Ovophis okinavensis (Boulenger, 1892)

Ovophis okinavensis is a Japanese pitviper found in the Ryukyu Islands that can use both oviparous and ovoviviparous reproduction.

Tonkin Pit Viper

Ovophis tonkinensis (Bourret, 1934)

Ovophis tonkinensis is an Asian pit viper species with defined morphological traits and a broad geographic range across South and East Asia.

Taiwan mountain pitviper

Ovophis makazayazaya (Takahashi, 1922)

Ovophis makazayazaya is a snake species with described size, sexual dimorphism, and key diagnostic scale traits.

South American Bushmaster

Lachesis muta (Linnaeus, 1766)

Lachesis muta is a large South American pit viper, the longest venomous snake in the Western Hemisphere.

Chocoan bushmaster

Lachesis acrochorda (Garcia, 1896)

Lachesis acrochorda is an oviparous snake species found in northwestern South America and Central America, living in Neotropical forests up to 1600 m elevation.