Colubridae

Atractus major Boulenger, 1894

Atractus major (brown/big ground snake) is a colubrid snake found in five northern and central South American countries.

Atractus lasallei Amaral, 1931

Lasalle's ground snake (Atractus lasallei) is an oviparous colubrid snake endemic to northwestern Colombia.

Atractus crassicaudatus (Duméril, Bibron & Duméril, 1854)

Atractus crassicaudatus, the thickhead ground snake, is an endemic colubrid snake found only in central Colombian highlands.

Atractus elaps (Günther, 1858)

Atractus elaps, the black ground snake, is a colubrid snake found across multiple countries in South America.

Xenopholis scalaris (Wucherer, 1861)

Wucherer's ground snake (Xenopholis scalaris) is a colubrid snake species endemic to South America.

Xenodon rabdocephalus (Wied-Neuwied, 1824)

Xenodon rabdocephalus is a medium-sized oviparous brown snake found across Central and northern South America.

Xenodon neuwiedii Günther, 1863

Neuwied's false fer-de-lance (Xenodon neuwiedii) is an oviparous colubrid snake native to eastern central South America.

Xenodon dorbignyi (Bibron, 1854)

Xenodon dorbignyi is a South American snake that resembles a sympatric venomous species and lives in sandy forest and grassland.

Xenodon merremii (Wagler, 1824)

Xenodon merremii is a variable-patterned South American snake that reaches up to 1 m in length and is oviparous.

Urotheca lateristriga (Berthold, 1859)

Urotheca lateristriga is a Colubridae snake species found in Colombia and Ecuador.

Uromacer catesbyi (Schlegel, 1837)

Uromacer catesbyi is an oviparous colubrid snake species endemic to Hispaniola.

Tretanorhinus nigroluteus Cope, 1861

Tretanorhinus nigroluteus, the orange-bellied swamp snake, is a colubrid species found across seven Central American countries.

Tomodon dorsatus Duméril, Bibron & Duméril, 1854

Tomodon is a monotypic South American endemic colubrid snake genus holding only Tomodon dorsatus, the pampas snake.

Thamnodynastes pallidus (Linnaeus, 1758)

Thamnodynastes pallidus, the Amazon coastal house snake, is a colubrid snake endemic to South America.

Taeniophallus brevirostris (Peters, 1863)

Taeniophallus brevirostris, the short-nosed ground snake, is a colubrid snake found across northern South America.

Tachymenis peruviana Wiegmann, 1834

Tachymenis peruviana, the Peru slender snake, is a colubrid snake found in four South American countries.

Siphlophis cervinus (Laurenti, 1768)

Siphlophis cervinus, the Panamanian spotted night snake, is a snake found in Amazonian South America and Trinidad and Tobago.

Siphlophis compressus (Daudin, 1803)

Siphlophis compressus, the tropical flat snake, is a Central and South American snake with a varied diet.

Sibon nebulatus (Linnaeus, 1758)

Sibon nebulatus is a snake with distinct patterning that is often confused with Dipsas elegans in northwestern Ecuadorian cloud forests.

Sibon longifrenis (Stejneger, 1909)

Sibon longifrenis is a colubrid snake found in Central America that primarily feeds on amphibian eggs.

Sibon dimidiatus (Günther, 1872)

The slender snail sucker (Sibon dimidiatus) is a colubrid snake species found in Central America.

Sibon anthracops (Cope, 1868)

Cope's snail sucker (Sibon anthracops) is a colubrid snake found across five Central American countries.

Sibon annulatus (Günther, 1872)

Sibon annulatus, the ringed snail sucker, is a colubrid snake found across parts of Central and South America.

Rhadinaea taeniata (Peters, 1863)

Rhadinaea taeniata, the pine-oak snake, is a colubrid snake species found in Mexico.