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= endemicEX = 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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Genus
Masticophis (North American Whip Snakes and Coachwhips) |
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Genus
Nerodia (North American Water Snakes) |
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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.) | | |
Genus
Agkistrodon (American Copperheads, Cottonmouths, and Cantils) |
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