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= endemic EX = extinct or assumed extinct

Genus
Boa (Red-tailed Boas) |
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Genus
Boiruna (Southern Snake Eaters) |
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Genus
Clelia (Northern Snake Eaters) |
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Genus
Dipsas (Neotropical Snail Eaters) |
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Genus
Helicops (South American Keelbacks) |
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Genus
Lygophis (South American Striped Ground Snakes) |
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Genus
Mesotes (Southern Mock Vipers) |
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Genus
Oxybelis (Neotropical Vine Snakes) |
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Genus
Phalotris (South American Collared Snakes) |
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Genus
Phimophis (South American Shovel-nosed Snakes) |
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Genus
Simophis (South American False Coral Snake) |
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Genus
Tantilla (American Centipede Snakes) |
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Genus
Xenodon (Northern Mock Lanceheads and South American Hognose Snakes) |
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Genus
Xenopholis (South American Flat-headed Snakes) |
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Family
Elapidae [part 1: terrestrial species] (Cobras, Mambas, etc.) |  |  |
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