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= endemic EX = extinct or assumed extinct

Genus
Anilius (South American Pipe Snake) |
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Genus
Boa (Red-tailed Boas) |
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Atractus badius
Guianan Spindle Snake | 
Avila-Pires 2005
Chippaux 1987
Dewynter, Marty, Blanc, Gaucher, Vidal, Fretey, Massary & Fouquet 2008
Hoogmoed & Avila-Pires 1991
Hoogmoed 1980
Massary & Daskiewicz 2009
Passos, Melo-Sampaio, Ramos, Grazziotin, Fouquet & Torres-Carvajal 2022
Peters & Orejas-Miranda 1970 [as micheli]
Schargel, Lamar, Passos, Valencia, Cisneros-Heredia & Campbell 2013
Starace 1998
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Genus
Clelia (Northern Snake Eaters) |
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Genus
Dipsas (Neotropical Snail Eaters) |
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Drepanoides anomalus
Amazon Egg Eater | 
Avila-Pires 2005
Dewynter, Marty, Blanc, Gaucher, Vidal, Fretey, Massary & Fouquet 2008
Guedes, Queiroz, Sousa & Hamdan 2020
Starace 1998
Vacher, Dewynter, Marty & Blanc 2002
Vidal, Massary & Marty 1998
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Dryophylax ramonriveroi
Turimiquire Mock Viper | 
Nogueira, Argolo, Arzamendia, Azevedo, Barbo, Bernils, Bolochio, Borges-Martins, Brasil-Godinho, Braz, Buononato, Cisneros-Heredia & Colli 2019
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Erythrolamprus pygmaeus
Amazon Dwarf Forest Snake | 
Dewynter, Marty, Blanc, Gaucher, Vidal, Fretey, Massary & Fouquet 2008
Kawashita-Ribeiro, Carvalho, Lima, Avila & Fraga 2011
Torres-Carvajal & Hinojosa 2020
Vechio, Teixeira-Junior, Recoder, Sena, Souza & Rodrigues 2015
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Genus
Helicops (South American Keelbacks) |
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Genus
Hydrops (South American Mud Snakes) |
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Genus
Imantodes (American Blunt-headed Tree Snakes) |
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Genus
Lygophis (South American Striped Ground Snakes) |
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Mastigodryas boddaerti
Brown Lizard Eater | 
Avila-Pires 2005
Chippaux 1987
Dewynter, Marty, Blanc, Gaucher, Vidal, Fretey, Massary & Fouquet 2008
Massary & Daskiewicz 2009
Montingelli 2009
Montingelli, Grazziotin, Battilana, Murphy, Zhang & Zaher 2019
Starace 1998
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Genus
Oxybelis (Neotropical Vine Snakes) |
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Oxybelis rutherfordi
Trinidad Vine Snake | 
Avila-Pires 2005 [as aeneus]
Chippaux 1987 [as aeneus]
Dewynter, Marty, Blanc, Gaucher, Vidal, Fretey, Massary & Fouquet 2008 [as aeneus]
Jadin, Blair, Orlofske, Jowers, Rivas, Vitt, Ray, Smith & Murphy 2020
Massary & Daskiewicz 2009 [as aeneus]
Starace 1998 [as aeneus]
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Genus
Phimophis (South American Shovel-nosed Snakes) |
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Genus
Sibon (Neotropical Snail Eaters) |
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Genus
Tantilla (American Centipede Snakes) |
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Tantilla melanocephala
South American Black-headed Centipede Snake | 
Avila-Pires 2005
Chippaux 1987
Dewynter, Marty, Blanc, Gaucher, Vidal, Fretey, Massary & Fouquet 2008
Hoogmoed & Avila-Pires 1991
Jowers, Rivas, Jadin, Braswell, Auguste, Borzee & Murphy 2020
Starace 1998
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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.) |  |  |
Genus
Epictia (Neotropical Thread Snakes) |
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Habrophallos collaris
Collared Thread Snake | 
Avila-Pires 2005
Chippaux 1987
Dewynter, Marty, Blanc, Gaucher, Vidal, Fretey, Massary & Fouquet 2008
Francisco, Pinto & Fernandes 2012
Hahn 1980
Martins, Koch, Pinto, Folly, Fouquet & Passos 2019
McDiarmid, Campbell & Toure 1999
Ouboter & Hoogmoed 2017
Starace 1998
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Amerotyphlops reticulatus
Reticulated Blind Snake | 
Avila-Pires 2005
Chippaux 1987
Dewynter, Marty, Blanc, Gaucher, Vidal, Fretey, Massary & Fouquet 2008
Dixon & Hendricks 1979
Graboski, Arredondo, Grazziotin, Silva, Prudente, Rodrigues, Bonatto & Zaher 2019
McDiarmid, Campbell & Toure 1999
Starace 1998
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Bothrops oligobalius
Northern Velvety Lancehead | 
Avila-Pires 2005 [as B. brazili]
Campbell & Lamar 2004 [as B. brazili]
Chippaux 1987 [as B. brazili]
David, Dobiey & Vogel 2018 [as B. brazili]
Dewynter, Marty, Blanc, Gaucher, Vidal, Fretey, Massary & Fouquet 2008 [as B. brazili]
Starace 1998 [as B. brazili]
Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
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Lachesis muta
South American Bushmaster | 
Avila-Pires 2005
Barrio-Amoros, Corrales, Rodriguez, Culebras, Dwyer & Flores 2020
Campbell & Lamar 2004
Chippaux 1987
Dewynter, Marty, Blanc, Gaucher, Vidal, Fretey, Massary & Fouquet 2008
Massary & Daskiewicz 2009
Starace 1998
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