Animals — 36,937 Species
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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.
Hump-nosed Viper
Hypnale hypnale (Merrem, 1820)
Hypnale hypnale is a stout viper species found in southwestern India and Sri Lanka that bears live young between March and July.
Lowland Hump-nosed Viper
Hypnale zara (Gray, 1849)
Hypnale zara is an ovoviviparous species with distinct scale patterns and coloration as described here.
Ussuri Mamushi
Gloydius ussuriensis (Emelianov, 1929)
Gloydius ussuriensis is a venomous pitviper found in far east Russia, northeastern China, the Korean Peninsula, and Quelpart Island.
Himalayan Pitviper
Gloydius himalayanus (Günther, 1864)
Gloydius himalayanus is a highland pit viper living along southern Himalayan slopes, the only pit viper found in Pakistan.
Halys Pit Viper
Gloydius halys (Pallas, 1776)
Gloydius halys is a moderately stout pit viper with a defined physical description and known geographic range across central and East Asia.
Short-tailed Mamushi
Gloydius blomhoffii (Boie, 1826)
Gloydius blomhoffii is one of Japan's most venomous pit vipers, found in a range of Japanese habitats.
Short-tailed Mamushi
Gloydius brevicauda (Stejneger, 1907)
Gloydius brevicauda is a short-tailed stout viper found in northeast China and the Korean Peninsula.
Central Asian Pitviper
Gloydius intermedius (Strauch, 1868)
This is a description of Gloydius intermedius, covering its physical traits, scalation, coloration and geographic range.
Metlapilcoatlus borealis Tepos-Ramírez, Flores-Villela, Velasco, Lara, García-Rubio & Jadin, 2021
Metlapilcoatlus borealis Tepos-Ramírez, Flores-Villela, Velasco, Lara, García-Rubio & Jadin, 2021
Metlapilcoatlus borealis is a medium-sized viper species first described in 2021, identifiable by specific scale features and unique genetic markers.
Central American Jumping Pit Viper
Metlapilcoatlus mexicanus (Duméril, Bibron & Duméril, 1854)
Metlapilcoatlus mexicanus is an extremely stout-bodied species ranging from southern Mexico to Panama.
Borneo Pit Viper
Craspedocephalus borneensis (Peters, 1872)
Craspedocephalus borneensis is a Bornean pit viper with variable coloration, found in low-elevation forests.
Common Bamboo Viper
Craspedocephalus gramineus (Shaw, 1802)
Craspedocephalus gramineus, the Bamboo Pit Viper, is a venomous arboreal ovoviviparous snake widespread in peninsular India.
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