All Snake Families (Serpentes)

Elapidae (, commonly known as elapids , from Ancient Greek: ἔλαψ élaps, variant of ἔλλοψ éllops "sea-fish") is a family of snakes characterized by their permanently erect fangs at the front of the mouth.

Vipers ( VEYE-pər) are snakes in the family Viperidae ( veye-PERR-ih-day), found in most parts of the world, except for Antarctica, Australia, Hawaii, Madagascar, Ireland, and various other isolated islands.

The Lamprophiidae are a family of snakes found throughout Africa, including Seychelles.

The Acrochordidae, commonly known as wart snakes, Java wart snakes, file snakes, elephant trunk snakes, or dogface snakes are a monogeneric family of snakes.

The Aniliidae are a monotypic family created for the monotypic genus Anilius that contains the single species Anilius scytale.

Anomochilidae is a family of snakes with one genus, Anomochilus, containing three species of snake.

The Atractaspididae (atractaspidids) are a family of venomous snakes found in Africa and the Middle East, commonly called mole vipers, stiletto snakes, or burrowing asps.

The Boidae, commonly known as boas or boids, are a family of nonvenomous snakes primarily found in the Americas, as well as Africa, Europe, Asia, and some Pacific islands.

Common names: Mauritius snakes, Round Island boas, splitjaw snakes.

The Cylindrophiidae are a monotypic family of secretive, semifossorial, non-venomous snakes containing the genus Cylindrophis found in southeastern Asia.

The Homalopsidae are a family of snakes which contains about 30 genera and more than 50 species.

Loxocemus bicolor, the sole member of the monotypic family Loxocemidae and commonly known as the Mexican python, Mexican burrowing python and Mexican burrowing snake, is a species of python-like snake found in Mexico and Central America.

Pareidae is a small family of snakes found largely in southeast Asia, with an isolated subfamily endemic to southwestern India.

Prosymna is a genus of elapoid snake. It is the only genus in the family Prosymnidae.

Psammodynastes is a genus of elapoid snakes, containing two species native to tropical and subtropical Asia.

Psammophiidae is a family of elapoid snakes.

Pseudaspididae is a small family of elapoid snakes, containing only two species (each in their own monotypic genus) from sub-Saharan Africa.

The Pseudoxyrhophiidae is a family of elapoid snakes, found mostly in Madagascar.

The Pythonidae, commonly known as pythons, are a family of non-venomous snakes found in Africa, Asia, and Australia.

The Tropidophiidae, common name dwarf boas or thunder snakes, are a family of nonvenomous snakes found from Mexico and the West Indies south to southeastern Brazil.

The Uropeltidae, also commonly known as shield-tail snakes, shield-tailed snakes or earth snakes, are a family of primitive, nonvenomous, burrowing snakes native to Peninsular India and Sri Lanka.

Xenodermidae is a family of snakes native to East Asia, South Asia, and Southeast Asia.

Xenopeltis, the sunbeam snakes, are the sole genus of the monotypic family Xenopeltidae, the species of which are found in Southeast Asia.

Cyclocoridae is a family of elapoid snakes endemic to the Philippines.

Micrelaps is a genus of rear-fanged mildly venomous snakes.

Xenophidion is a genus of snakes first described in 1995, and the only genus of the monotypic family Xenophidiidae.

Colubridae (, commonly known as colubrids , from Latin: coluber, 'snake') is a family of snakes.