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= endemic EX = extinct or assumed extinct

Genus
Boa (Red-tailed Boas) |
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Genus
Adelphicos (Central American Burrowing Snakes) |
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Adelphicos visoninum
Honduran Four-lined Burrowing Snake | 
Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022 [as A. quadrivirgatus]
Heimes 2016
Lee 1996
Mendoza-Quijano, Campos-Rodriguez, Lopez-Vidal, Smith & Chiszar 2003
Peters & Orejas-Miranda 1970
Smith & Taylor 1945
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Genus
Clelia (Northern Snake Eaters) |
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Clelia scytalina
Mexican Snake Eater | 
Auth, Smith, Brown & Lintz 2000 [as clelia]
Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022
Heimes 2016
Lee 1996
Smith & Taylor 1945 [as clelia]
Smith 1960 [as clelia]
Zaher 1996
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Genus
Dipsas (Neotropical Snail Eaters) |
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Drymarchon melanurus
Black-tailed Cribo | 
Auth, Smith, Brown & Lintz 2000
Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022
Lee 1996
Smith & Taylor 1945
Smith 1960
Wuster, Yrausquin & Mijares-Urrutia 2001
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Genus
Enulius (Middle American Long-tailed Snakes) |
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Enulius flavitorques
Pacific Long-tailed Snake | 
Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022
Hernandez-Valadez, Hernandez-Estanol, Barragan-Vazquez, Charruau & Lopez-Luna 2016
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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 gemmistratus
Central American Blunt-headed Tree Snake | 
Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022
Charruau, Morales-Garduza, Reyes-Trinidad & Ramirez-Perez 2015
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Genus
Masticophis (North American Whip Snakes and Coachwhips) |
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Masticophis mentovarius
Neotropical Whip Snake | 
Auth, Chiszar, Smith & Breukelen 1997
Auth, Chiszar, Smith & Breukelen 1998
Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022
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Genus
Nerodia (North American Water Snakes) |
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Nerodia rhombifer
Diamondback Water Snake | 
Auth, Smith, Brown & Lintz 2000
Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022
Conant 1969
Gibbons & Dorcas 2004
Heimes 2016
Lee 1996
McAllister 1985
Smith & Taylor 1945
Smith 1960
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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
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.) |  |  |
Genus
Epictia (Neotropical Thread Snakes) |
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Genus
Agkistrodon (American Copperheads, Cottonmouths, and Cantils) |
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Agkistrodon russeolus
Yucatan Cantil | 
Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022
Charruau, Escobedo-Galvan, Koller-Gonzalez & Morales-Garduza 2014
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