The twig snakes, also commonly known as bird snakes or vine snakes, are a genus of rear-fanged venomous snakes in the family Colubridae. The genus is native to Africa. All species in the genus have a slender and elongated profile, a long tail, a narrow head and a pointed snout. The eye of all species has a horizontal pupil, shaped like a keyhole, which gives twig snakes binocular vision. Twig snakes are greyish-brown with faint light and dark markings. When threatened, they inflate the throat to display bold black markings between the scales. Twig snake bites are potentially deadly: the venom is hemotoxic, affecting the blood clotting mechanism and causing uncontrolled bleeding and internal hemorrhaging. Bites by twig snakes have caused death in humans; famous herpetologist Robert Mertens died after being bitten by his pet savanna vine snake. However, envenomed bites are extremely rare when not handling the snake, as the fangs can't breach the skin except in a few places like the web between the thumb and fingers.
Kirtland's snake is a threatened or endangered North American species of nonvenomous snake of the subfamily Natricinae, of the family Colubridae. It is the only species in the genus Clonophis.
Goldie's tree cobra, also known commonly as the African tree cobra and as Gold's tree cobra, is a species of venomous tree cobra in the family Elapidae. The species is native to Central and Western Africa. This species is one of the two tree cobras in Africa, the other being the black tree cobra. Goldie's tree cobra is one of the most venomous snakes and creatures in Africa.
The forest cobra, also commonly called the black cobra and the black and white-lipped cobra, is a species of highly venomous snake in the family Elapidae. The species is native to Africa, mostly the central and western parts of the continent. It is the largest true cobra species with a record length of 3.2 metres.
Atractaspis engdahli, also known commonly as Engdahl's burrowing asp, Engdahl's burrowing viper, and the mole viper, is a species of venomous snake in the family Atractaspididae. The species is endemic to Africa.
The large-eyed green tree snake, also known commonly as the splendid dagger-tooth tree snake, is a species of venomous snake in the subfamily Colubrinae of the family Colubridae. The species is endemic to Africa. There are three recognized subspecies.
The spotted dagger-tooth tree snake is a species of venomous snake in the family Colubridae. The species is indigenous to Middle Africa.
Degen's water snake, also known commonly as Degen's herald snake and the yellow-flanked snake, is a species of snake in the family Colubridae. The species is native to Sub-Saharan Africa.
Dasypeltis medici, known commonly as the East African egg-eater and the eastern forest egg-eater, is a species of nonvenomous snake in the family Colubridae. The species is endemic to Africa.
The savanna vine snake or southern vine snake is a species of venomous snake in the family Colubridae.
The olive marsh snake is a species of snake in the subfamily Natricinae of the family Colubridae. The species is endemic to Sub-Saharan Africa.
Toxicodryas blandingii, commonly known as Blanding's cat snake and Blanding's tree snake, is a species of rear-fanged venomous snake of the family Colubridae. The species is endemic to Sub-Saharan Africa.
Toxicodryas pulverulenta, commonly known as Fischer's cat snake, Fischer's tree snake, and the powdered tree snake, is a species of rear-fanged venomous snake in the family Colubridae. The species is native to Sub-Saharan Africa.
Adolfus jacksoni, also known commonly as Jackson's forest lizard, is a species of lizard in the family Lacertidae. The species is native to East Africa.
Congolacerta vauereselli, also known commonly as the sparse-scaled forest lizard, is a species of lizard in the family Lacertidae. The species is native to central Africa.
Holaspis guentheri, also commonly known as the neon blue-tailed tree lizard, the sawtail lizard, and the western neon blue-tailed tree lizard is a species of lizard in the family Lacertidae. The species is native to portions of West Africa and Central Africa.
Philothamnus battersbyi, also known commonly as Battersby's green snake, is a species of snake in the family Colubridae. The species is native to northeastern Africa.
Dasypeltis gansi, commonly known as Gans's egg-eater or Gans' egg-eating snake, is a species of non-venomous snake in the family Colubridae. The species is native to West Africa.
Philothamnus hughesi, also known commonly as Hughes' green snake or Hughes's green snake, is a species of snake in the subfamily Colubrinae of the family Colubridae. The species is native to central Africa.
Thrasops jacksonii, also known commonly as the black tree snake and Jackson's black tree snake, is a species of snake in the subfamily Colubrinae of the family Colubridae. The species is native to Central Africa.
