Wikipedia
Alethinophidia
Common names: advanced snakes.
The Alethinophidia are an infraorder of snakes that includes all snakes other than blind snakes and thread snakes. Currently, 15 families are recognized, including 9 subfamilies and 316 genera.
- Family: Acrochordidae Bonaparte, 1831—wart snakes
- Family: Aniliidae Stejneger, 1907—false coral snakes
- Family: Anomochilidae Cundall, Wallach and Rossman, 1993—dwarf pipe snakes
- Family: Atractaspididae Günther, 1858—African burrowing asps, stiletto snakes
- Family: Boidae Gray, 1825—boas
- Subfamily: Boinae Gray, 1825—boas
- Subfamily: Erycinae Bonaparte, 1831—Old World sand boas
- Family: † Madtsoiidae Hoffstetter, 1961
- Family: Bolyeriidae Hoffstetter, 1946—Mauritius snakes
- Family: Colubridae Oppel, 1811—colubrids, typical snakes
- Subfamily: Homalopsinae Günther, 1864
- Subfamily: Natricinae Bonaparte, 1838
- Subfamily: Xenodontinae Cope, 1895
- Family: Cylindrophiidae Fitzinger, 1843—Asian pipe snakes
- Family: Elapidae F. Boie, 1827—Cobras, coral snakes, mambas, taipans, and sea snakes
- Family: Loxocemidae Cope, 1861—Mexican pythons
- Family: Pythonidae Fitzinger, 1826—pythons
- Family: Tropidophiidae Brongersma, 1951—dwarf boas
- Family: Uropeltidae Müller, 1832—pipe snakes, shield-tailed snakes
- Family: Viperidae Oppel, 1811—vipers, pitvipers
- Subfamily: Azemiopinae Liem, Marx and Rabb, 1971—Fae's viper
- Subfamily: Causinae Cope, 1859—night adders
- Subfamily: Crotalinae Oppel, 1811—pitvipers, rattlesnakes
- Subfamily: Viperinae Oppel, 1811—common vipers, true vipers
- Family: Xenopeltidae Bonaparte, 1845—sunbeam snakes
- Family: † Nigerophiidae
- Family: † Palaeophiidae