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= endemic EX = extinct or assumed extinct

Genus
Boa (Red-tailed Boas) |
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Boa constrictor
South American Red-tailed Boa | 
Castro & Teixeira 2007
Costa, Guedes & Bernils 2021
Ferreira & Mendes 2010
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Ruschi 1966
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
Tonini, Carao, Pinto, Gasparini, Leite & Costa 2010
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Genus
Cercophis (Atlantic Forest Liana Snake) |
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Chironius bicarinatus
Eastern Sipo | 
Castro & Teixeira 2007
Costa, Guedes & Bernils 2021
Dixon, Wiest & Cei 1993
Entiauspe-Neto, Lyra, Koch, Quintela, Abegg & Loebmann 2020
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Peters & Orejas-Miranda 1970
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Tonini, Carao, Pinto, Gasparini, Leite & Costa 2010
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Chironius exoletus
Green Sipo | 
Castro & Teixeira 2007
Costa, Guedes & Bernils 2021
Dixon, Wiest & Cei 1993
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
Sudre, Curcio, Nunes, Pellegrino & Rodrigues 2017
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Chironius fuscus
Brown Sipo | 
Costa, Guedes & Bernils 2021
Dixon, Wiest & Cei 1993
Pereira-Ribeiro, Ferreguetti, Bergallo & Rocha 2022
Ruschi 1966
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Sudre, Curcio, Nunes, Pellegrino & Rodrigues 2017
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Genus
Clelia (Northern Snake Eaters) |
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Genus
Dibernardia (East South American Leaf-litter Snakes) |
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Dibernardia affinis
Atlantic Forest Leaf-litter Snake | 
Argolo 1998
Costa, Guedes & Bernils 2021
Di-Bernardo & Lema 1988
Loebmann 2008
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Travassos & Freitas 1949
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Genus
Dipsas (Neotropical Snail Eaters) |
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Dipsas neuwiedi
Brazilian Banded Snail Eater | 
Andrade, Oliveira Lima, Oliveira Silva, Fonseca Fernandes & Reis Dias 2019
Castro & Teixeira 2007
Costa, Guedes & Bernils 2021
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Peters & Orejas-Miranda 1970
Peters 1960
Peters 1965
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
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Dryophylax nattereri
Coastal Mock Viper | 
Costa, Guedes & Bernils 2021
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
Trevine, Caicedo-Portilla, Hoogmoed, Thomas, Franco, Montingelli, Osorno-Munoz & Zaher 2021
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Elapomorphus quinquelineatus
Five-lined Lizard Eater | 
Costa, Guedes & Bernils 2021
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Travaglia-Cardoso, Teixeira da Rocha & Puorto 2001
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Erythrolamprus miliaris
Military Smooth Snake | 
Castro & Teixeira 2007
Costa, Guedes & Bernils 2021
Dixon 1983
Ferreira & Mendes 2010
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Pereira-Ribeiro, Ferreguetti, Bergallo & Rocha 2022
Ruschi 1966
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
Travassos & Freitas 1949
Travassos 1944
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Erythrolamprus poecilogyrus
Yellow-bellied Smooth Snake | 
Ascenso, Costa & Prudente 2019
Costa, Guedes & Bernils 2021
Dixon 1989
Entiauspe-Neto, Abegg, Koch, Nunez, Azevedo, Moraes, Tiutenko, Bialves & Loebmann 2021
Peters & Orejas-Miranda 1970
Ruschi 1966
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
Tonini, Carao, Pinto, Gasparini, Leite & Costa 2010
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Erythrolamprus reginae
Northern Royal Smooth Snake | 
Ascenso, Costa & Prudente 2019
Costa, Guedes & Bernils 2021
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Tonini, Carao, Pinto, Gasparini, Leite & Costa 2010
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Genus
Helicops (South American Keelbacks) |
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Helicops carinicaudus
Keel-tailed Keelback | 
Castro & Teixeira 2007
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
Peters & Orejas-Miranda 1970
Silva-Soares, Ferreira, Salles & Rocha 2011
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Genus
Imantodes (American Blunt-headed Tree Snakes) |
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Leptodeira annulata
South American Banded Cat-eyed Snake | 
Costa, Guedes & Bernils 2021
Duellman 1958
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Pereira-Ribeiro, Ferreguetti, Bergallo & Rocha 2022
Silva-Soares, Ferreira, Salles & Rocha 2011
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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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Oxybelis aeneus
Brown Vine Snake | 
Castro & Teixeira 2007
Costa, Guedes & Bernils 2021
Keiser 1974
Pereira-Ribeiro, Ferreguetti, Bergallo & Rocha 2022
Ruschi 1966
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
Vanzolini, Ramos-Costa & Vitt 1980
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Oxyrhopus clathratus
Southern Brazilian Calico Snake | 
Bernardo, Machado, Murphy & Zaher 2012
Costa, Guedes & Bernils 2021
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
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Oxyrhopus petolarius
Banded Calico Snake | 
Castro & Teixeira 2007
Costa, Guedes & Bernils 2021
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
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Pseudablabes patagoniensis
Patagonian Bush Racer | 
Castro & Teixeira 2007
Costa, Guedes & Bernils 2021
Gouveia, Novelli, Vieira & Sousa 2017
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
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Siphlophis longicaudatus
Long-tailed Liana Snake | 
Costa, Guedes & Bernils 2021
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Peters & Orejas-Miranda 1970
Prudente, Silva, Santos Meireles & Puorto 2017
Thomassen, Costa, Silveira, Garcia & Bernils 2015
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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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Xenodon neuwiedii
East Brazilian Mock Lancehead | 
Castro & Teixeira 2007
Costa, Guedes & Bernils 2021
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Tonini, Carao, Pinto, Gasparini, Leite & Costa 2010
Travassos 1944
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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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Micrurus carvalhoi
Brazilian Ribbon Coral Snake | 
Castro, Oliveira, Gonzalez, Curcio & Feitosa 2017
Costa, Guedes & Bernils 2021
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
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Micrurus corallinus
Painted Coral Snake | 
Campbell & Lamar 2004
Castro & Teixeira 2007
Costa, Guedes & Bernils 2021
David, Dobiey & Vogel 2018
Hoge & Romano Hoge 1981
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Pereira-Ribeiro, Ferreguetti, Bergallo & Rocha 2022
Roze 1996
Ruschi 1966
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
Tonini, Carao, Pinto, Gasparini, Leite & Costa 2010
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Trilepida salgueiroi
Espirito Santo Thread Snake | 
Costa, Guedes & Bernils 2021
Costa, Pinto & Santana 2009
Figueiredo-de-Andrade, Oliveira-Nogueira & Junior 2011
Hahn 1980
Martins, Koch, Pinto, Folly, Fouquet & Passos 2019
McDiarmid, Campbell & Toure 1999
Passos, Caramaschi & Pinto 2005
Passos, Caramaschi & Pinto 2006
Peters & Orejas-Miranda 1970
Pinto & Fernandes 2012
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
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Bothrops jararaca
Jararaca | 
Campbell & Lamar 2004
Costa, Guedes & Bernils 2021
Hoge & Romano Hoge 1981
Oliveira, Santos, Lopes-Silva, Vasconcelos Barros, Risse-Quaioto, Militao, Fatorelli, Belmoch, Marcial de Castro & Rocha 2020
Pereira-Ribeiro, Ferreguetti, Bergallo & Rocha 2022
Ruschi 1966
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
Tonini, Carao, Pinto, Gasparini, Leite & Costa 2010
Travassos 1944
Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
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Bothrops jararacussu
Jararacussu | 
Campbell & Lamar 2004
Costa, Guedes & Bernils 2021
Hoge & Romano Hoge 1981
Ruschi 1966
Silva Cozer, Pereira-Ribeiro, Meirelles Linause, Colombo Ferreguetti, Godoy Bergallo & Rocha 2020
Silva-Soares, Ferreira, Salles & Rocha 2011
Tonini, Carao, Pinto, Gasparini, Leite & Costa 2010
Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
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