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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 albuquerquei
Guama River Spindle Snake | 
Bernarde & Abe 2006
Bernarde, Albuquerque, Barros & Turci 2012
Costa, Guedes & Bernils 2021
Cunha & Nascimento 1983
Nascimento, Avila Pires & Cunha 1988
Passos & Fernandes 2008
Passos, Azevedo, Nogueira, Fernandes & Sawaya 2019
Passos, Chiesse, Torres-Carvajal & Savage 2009
Silva 1993
Silva, Silva, Ribeiro, Souza & Souza 2005
Turci & Bernarde 2008
Wallach, Williams & Boundy 2014
Zaher, Souza, Gower, Hingst-Zaher & Silva 2005
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Atractus emmeli
Bolivian Spindle Snake | 
Bernarde, Albuquerque, Barros & Turci 2012 [as A. taeniatus]
Costa, Guedes & Bernils 2021
Passos, Azevedo, Nogueira, Fernandes & Sawaya 2019
Passos, Sudre, Doria & Campbell 2018
Silva 1993 [as A. taeniatus]
Silva, Silva, Ribeiro, Souza & Souza 2005 [as A. taeniatus]
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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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Helicops angulatus
Brown-banded Keelback | 
Avila-Pires, Vitt, Sartorius & Zani 2009
Bernarde & Abe 2006
Bernarde, Albuquerque, Barros & Turci 2012
Borges-Nojosa, Dourado de Mesquita & Fernandes-Ferreira 2008
Costa, Guedes & Bernils 2021
Ferrao, Filho & Silva 2012
Kawashita-Ribeiro, Avila & Morais 2013
Moraes-da-Silva, Amaro, Sales Nunes, Rodrigues & Curcio 2021
Moraes-da-Silva, Amaro, Sales Nunes, Strussmann, Teixeira, Andrade, Sudre, Recoder, Rodrigues & Curcio 2019
Roberto, Ribeiro, Sousa-Delfino & Oliveira-Almeida 2009
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Helicops hagmanni
Amazonian Keelback | 
Avila-Pires, Vitt, Sartorius & Zani 2009
Bernarde, Albuquerque, Barros & Turci 2012
Costa, Guedes & Bernils 2021
Moraes-da-Silva, Amaro, Sales Nunes, Rodrigues & Curcio 2021
Moraes-da-Silva, Amaro, Sales Nunes, Strussmann, Teixeira, Andrade, Sudre, Recoder, Rodrigues & Curcio 2019
Silva 1993
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Helicops polylepis
South American Many-scaled Keelback | 
Bernarde, Albuquerque, Barros & Turci 2012
Costa, Guedes & Bernils 2021
Kawashita-Ribeiro, Avila & Morais 2013
Moraes-da-Silva, Amaro, Sales Nunes, Rodrigues & Curcio 2021
Moraes-da-Silva, Amaro, Sales Nunes, Strussmann, Teixeira, Andrade, Sudre, Recoder, Rodrigues & Curcio 2019
Silva 1993
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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 | 
Bernarde & Abe 2006
Bernarde & Abe 2010
Bernarde, Albuquerque, Barros & Turci 2012
Costa, Guedes & Bernils 2021
Ferrao, Filho & Silva 2012
Montingelli 2009
Montingelli, Grazziotin, Battilana, Murphy, Zhang & Zaher 2019
Montingelli, Valencia, Benavides & Zaher 2011
Nascimento, Avila Pires & Cunha 1988
Silva 1993
Siqueira, Nascimento & Santos-Costa 2012
Siqueira, Nascimento, Montingelli & Santos-Costa 2013
Turci & Bernarde 2008
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Genus
Ninia (Coffee Snakes) |
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Genus
Oxybelis (Neotropical Vine Snakes) |
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Genus
Phalotris (South American Collared Snakes) |
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Siphlophis compressus
Red-headed Liana Snake | 
Abegg, Santos, Ortiz, Moraes & Freitas 2017
Avila-Pires, Vitt, Sartorius & Zani 2009
Bernarde & Abe 2006
Bernarde, Albuquerque, Barros & Turci 2012
Costa, Guedes & Bernils 2021
Guedes, Nunes, Prudente & Marques 2011
Prudente, Silva, Santos Meireles & Puorto 2017
Silva 1993
Yuki, Galatti & Rocha 1999
Zaher & Prudente 1999
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Siphlophis worontzowi
Amazon Liana Snake | 
Bernarde & Abe 2006
Bernarde & Abe 2010
Bernarde, Albuquerque, Barros & Turci 2012
Costa, Guedes & Bernils 2021
Costa, Sao-Pedro & Feio 2010
Moravec, Aparicio, Guerrero-Reinhard & Calderon 2009
Prudente, Silva, Santos Meireles & Puorto 2017
Santos, Guimaraes-Guedes & Ribeiro 2003
Silva 1993
Vechio, Teixeira-Junior, Neto & Rodrigues 2015
Zaher & Prudente 1999
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Genus
Tantilla (American Centipede Snakes) |
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Thamnodynastes pallidus
Common South American Mock Viper | 
Bernarde, Albuquerque, Barros & Turci 2012
Costa, Guedes & Bernils 2021
Franco, Trevine, Montingelli & Zaher 2017
Trevine, Caicedo-Portilla, Hoogmoed, Thomas, Franco, Montingelli, Osorno-Munoz & Zaher 2021
Yuki, Galatti & Rocha 1999
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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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Zonateres lanei
Pantanal Mock Viper | 
Bernarde, Albuquerque, Barros & Turci 2012
Costa, Guedes & Bernils 2021
Franco, Trevine, Montingelli & Zaher 2017
Trevine, Caicedo-Portilla, Hoogmoed, Thomas, Franco, Montingelli, Osorno-Munoz & Zaher 2021
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Family
Elapidae [part 1: terrestrial species] (Cobras, Mambas, etc.) |  |  |
Genus
Epictia (Neotropical Thread Snakes) |
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Bothrocophias hyoprora
Amazonian Toad-headed Pitviper | 
Bernarde, Albuquerque, Barros & Turci 2012
Bernarde, Amaral & Vale 2011
Campbell & Lamar 2004
Carvalho, Fraga, Eler, Kawashita-Ribeiro, Feldberg, Vogt, Carvalho, Noronha, Condrati & Bittencourt 2013
Costa, Guedes & Bernils 2021
David, Dobiey & Vogel 2018
Hoge & Romano Hoge 1981
Oliveira, Araujo, Prudente, Fraga, Almeida & Ascenso 2018
Silva 1993
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Bothrops atrox
Common Lancehead | 
Avila-Pires, Vitt, Sartorius & Zani 2009
Bernarde & Abe 2006
Bernarde & Abe 2010
Bernarde, Albuquerque, Barros & Turci 2012
Campbell & Lamar 2004
Carrasco, Grazziotin, Farfan, Koch, Ochoa, Scrocchi, Leynaud & Chaparro 2019
Costa, Guedes & Bernils 2021
Ferrao, Filho & Silva 2012
Hoge & Romano Hoge 1981
Nascimento, Avila Pires & Cunha 1988
Silva 1993
Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
Yuki, Galatti & Rocha 1999
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Bothrops bilineatus
Two-striped Forest Pitviper | 
Avila-Pires, Vitt, Sartorius & Zani 2009
Bernarde & Abe 2006
Bernarde, Albuquerque, Barros & Turci 2012
Bernarde, Costa, Machado & Avelar Sao Pedro 2011
Costa, Guedes & Bernils 2021
Hoge & Romano Hoge 1981
Silva 1993
Turci & Bernarde 2008
Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
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