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= endemic EX = extinct or assumed extinct

Genus
Boa (Red-tailed Boas) |
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Boa imperator
Central American Red-tailed Boa | 
Campbell & Vannini 1989 [as B. constrictor]
Finnerty, Lord, Barbasch, Laman, Hakam, Perez, Jenkins, Fortunato, Lockwood, Bianco-Caron & Stewart 2021
Lee 1996
Stafford & Meyer 2000
Stafford, Walker, Edgar & Penn 2010 [as B. constrictor]
Villa, Wilson & Johnson 1988 [as B. constrictor]
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Genus
Adelphicos (Central American Burrowing Snakes) |
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Genus
Clelia (Northern Snake Eaters) |
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Genus
Coluber (North American Racer) |
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Coniophanes schmidti
Faded Black-striped Snake | 
Finnerty, Lord, Barbasch, Laman, Hakam, Perez, Jenkins, Fortunato, Lockwood, Bianco-Caron & Stewart 2021
Lee 1996
McCoy, Censky & Devender 1986
Peters & Orejas-Miranda 1970
Stafford & Meyer 2000
Stafford, Walker, Edgar & Penn 2010
Villa, Wilson & Johnson 1988
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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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Leptophis mexicanus
Mexican Parrot Snake | 
Campbell & Vannini 1989
Finnerty, Lord, Barbasch, Laman, Hakam, Perez, Jenkins, Fortunato, Lockwood, Bianco-Caron & Stewart 2021
Henderson 1976
Lee 1996
Oliver 1948
Stafford & Meyer 2000
Stafford, Walker, Edgar & Penn 2010
Villa, Wilson & Johnson 1988
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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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Oxybelis potosiensis
Gulf Coast Vine Snake | 
Campbell & Vannini 1989 [as aeneus]
Jadin, Blair, Orlofske, Jowers, Rivas, Vitt, Ray, Smith & Murphy 2020
Keiser 1974 [as aeneus]
Lee 1996 [as aeneus]
Stafford & Meyer 2000 [as aeneus]
Stafford, Walker, Edgar & Penn 2010 [as aeneus]
Villa, Wilson & Johnson 1988 [as aeneus]
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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.) |  |  |
Genus
Epictia (Neotropical Thread Snakes) |
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Genus
Agkistrodon (American Copperheads, Cottonmouths, and Cantils) |
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