Colubridae

Hydrodynastes gigas (Duméril, Bibron & Duméril, 1854)

Hydrodynastes gigas, commonly called false water cobra, is a large neotropical dipsadine snake with cobra-like defensive behavior.

Heterodon simus (Linnaeus, 1766)

Heterodon simus, the southern hognose snake, is an oviparous snake native to the southeastern US coastal plain.

Heterodon platirhinos Latreille, 1801

Heterodon platirhinos, the eastern hognose snake, is a stout North American snake with an upturned digging snout and variable coloration.

Heterodon nasicus Baird & Girard, 1852

Heterodon nasicus, the western hognose snake, is a small harmless North American rear-fanged burrowing snake popular in captivity.

Heterodon kennerlyi Kennicott, 1860

Heterodon kennerlyi is an oviparous colubrid snake found across the southwestern US and northern and central Mexico.

Hypsiglena torquata (Günther, 1860)

Hypsiglena torquata, the night snake, is a small primarily Mexican colubrid snake with rare Canadian records.

Hypsiglena jani Dugès, 1865

Hypsiglena jani is a mildly venomous snake found from central US to central Mexico that prefers semi-arid rocky habitats.

Hypsiglena chlorophaea Cope, 1860

The desert night snake, Hypsiglena chlorophaea, is a colubrid snake native to Mexico, Canada, and the United States.

Hypsiglena ochrorhynchus Cope, 1860

Hypsiglena ochrorhynchus (coast/spotted night snake) is an oviparous colubrid snake native to western North America, with 8 recognized subspecies.

Helicops leopardinus (Schlegel, 1837)

Leopard keelback (Helicops leopardinus) is a colubrid snake endemic to multiple South American countries.

Helicops angulatus (Linnaeus, 1758)

Helicops angulatus, the brown-banded water snake, is a facultatively viviparous aquatic reptile found in Brazil that feeds on a variety of prey.

Helicops carinicaudus (Wied-Neuwied, 1824)

Helicops carinicaudus is a colubrid snake species endemic to eastern Brazil, with two currently recognized subspecies.

Helicops danieli Amaral, 1938

Daniel's keelback (Helicops danieli) is a colubrid snake species found in Colombia.

Helicops infrataeniatus Jan, 1865

Helicops infrataeniatus is a Colubridae snake species endemic to specific regions of South America.

Geophis semidoliatus (Duméril, Bibron & Duméril, 1854)

Geophis semidoliatus, the coral earth snake, is a colubrid snake species found in Mexico.

Geophis brachycephalus (Cope, 1871)

Geophis brachycephalus, the Costa Rican earth snake, is a colubrid snake found in Costa Rica and Panama.

Geophis hoffmanni (Peters, 1859)

Geophis hoffmanni is a small oviparous snake found in forests and disturbed areas across Central America.

Hypsirhynchus parvifrons (Cope, 1862)

Hypsirhynchus parvifrons is a colubrid snake species native to Hispaniola and the Bahamas.

Farancia erytrogramma (Palissot De Beauvois, 1802)

Farancia erytrogramma (rainbow snake) is a striped North American aquatic snake with a documented extinct southern Florida population.

Farancia abacura (Holbrook, 1836)

Farancia abacura, the mud snake, is an almost entirely aquatic snake found in the southeastern United States.

Alsophis rufiventris (Duméril, Bibron & Duméril, 1854)

Alsophis rufiventris, the red-bellied racer, is a medium snake found on two Lesser Antilles islands with distinct sexual patterning.

Alsophis rijgersmaei Cope, 1869

The Leeward Island racer, Alsophis rijgersmaei, is a colubrid snake found on Anguilla and Saint Barthélemy, likely extirpated from Sint Maarten.

Erythrolamprus aesculapii (Linnaeus, 1758)

Erythrolamprus aesculapii is a mildly venomous colubrid snake endemic to South America, including Trinidad.

Erythrolamprus mimus (Cope, 1868)

The mimic false coral snake (Erythrolamprus mimus) is a colubrid snake found across seven countries in Central and South America.