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= endemic EX = extinct or assumed extinct

Genus
Boa (Red-tailed Boas) |
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Genus
Clelia (Northern Snake Eaters) |
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Genus
Dipsas (Neotropical Snail Eaters) |
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Genus
Ficimia (Eastern Hook-nosed Snakes) |
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Genus
Geophis (Central American Earth Snakes) |
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Genus
Imantodes (American Blunt-headed Tree Snakes) |
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Imantodes tenuissimus
Yucatan Blunt-headed Tree Snake | 
Auth, Smith, Brown & Lintz 2000
Gonzalez-Sanchez, Johnson, Garcia-Padilla, Mata-Silva, DeSantis & Wilson 2017
Heimes 2016
Koehler, Cedeno-Vazquez & Beutelspacher-Garcia 2016
Lee 1996
Smith & Taylor 1945
Torres-Carvajal, Yanez-Munoz, Quirola, Smith & Almendariz 2012
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Genus
Masticophis (North American Whip Snakes and Coachwhips) |
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Genus
Ninia (Coffee Snakes) |
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Genus
Oxybelis (Neotropical Vine Snakes) |
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Genus
Sibon (Neotropical Snail Eaters) |
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Genus
Symphimus (Mexican White-lipped Snakes) |
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Genus
Tantilla (American Centipede Snakes) |
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Genus
Thamnophis (North American Garter Snakes and Ribbon Snakes) |
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Genus
Xenodon (Northern Mock Lanceheads and South American Hognose Snakes) |
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Family
Elapidae [part 1: terrestrial species] (Cobras, Mambas, etc.) |  |  |
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Micrurus apiatus
Eastern Variable Coral Snake | 
Bahena-Basave 1995 [as M. browni]
Campbell & Lamar 2004
Dundee, White & Rico-Gray 1986 [as M. diastema]
Gonzalez-Sanchez, Johnson, Garcia-Padilla, Mata-Silva, DeSantis & Wilson 2017 [as M. diastema]
Koehler, Cedeno-Vazquez & Beutelspacher-Garcia 2016 [as M. diastema]
Lee 1996 [as M. diastema]
Reyes-Velasco, Adams, Boissinot, Parkinson, Campbell, Castoe & Smith 2020
Roze 1996
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Genus
Epictia (Neotropical Thread Snakes) |
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Genus
Agkistrodon (American Copperheads, Cottonmouths, and Cantils) |
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