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= endemic EX = extinct or assumed extinct

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Liotyphlops albirostris
White-nosed Blind Snake | 
Auth 1994
Dixon & Kofron 1984
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Linares-Vargas, Bolivar-Garcia, Herrera-Martinez, Osorio-Dominguez, Ospina, Thomas & Daza 2021
McDiarmid, Campbell & Toure 1999
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Genus
Boa (Red-tailed Boas) |
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Corallus annulatus
Annulated Tree Boa | 
Auth 1994
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Chironius grandisquamis
Large-scaled Sipo | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Dixon, Wiest & Cei 1993
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Genus
Clelia (Northern Snake Eaters) |
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Dendrophidion percarinatum
South American Forest Racer | 
Auth 1994
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Cadle 2012
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Genus
Dipsas (Neotropical Snail Eaters) |
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Dipsas temporalis
Esmeraldes Snail Eater | 
Auth 1994
Cadle 2005
Flores, Cruz, Pena, Cisneros & Ortega 2015
Harvey & Embert 2008
Harvey 2008
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Lotzkat, Hertz & Koehler 2012
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Drymobius margaritiferus
Speckled Racer | 
Auth 1994
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Enuliophis sclateri
White-headed Snake | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Genus
Enulius (Middle American Long-tailed Snakes) |
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Genus
Geophis (Central American Earth Snakes) |
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Geophis godmani
Irazu Earth Snake | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Batista, Hertz, Ponce & Lotzkat 2020
Downs 1967
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Savage & Watling 2008
Villa, Wilson & Johnson 1988
Wilson & Townsend 2007
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Geophis hoffmanni
Costa Rican Earth Snake | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Downs 1967
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Ray & Ruback 2015
Savage & Watling 2008
Townsend 2006
Villa, Wilson & Johnson 1988
Wilson & Townsend 2007
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Hydromorphus concolor
Common Central American Water Snake | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Genus
Imantodes (American Blunt-headed Tree Snakes) |
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Imantodes cenchoa
Common Blunt-headed Tree Snake | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Chippaux 1987
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Myers 1982
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Lampropeltis micropholis
Southern Milk Snake | 
Auth 1994 [as triangulum]
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Ibanez, Solis, Jaramillo & Rand 2001 [as triangulum]
Jaramillo, Wilson, Ibanez & Jaramillo 2010 [as triangulum]
Markel 1990
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Ruane 2015
Ruane, Bryson, Pyron & Burbrink 2014
Villa, Wilson & Johnson 1988 [as triangulum]
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Leptodeira ornata
Panamanian Small-spotted Cat-eyed Snake | 
Auth 1994 [as septentrionalis]
Barrio-Amoros 2019
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Duellman 1958
Ibanez, Solis, Jaramillo & Rand 2001 [as septentrionalis]
Jaramillo, Wilson, Ibanez & Jaramillo 2010 [as septentrionalis]
Perez-Santos, Moreno & Gearhart 1993
Ray & Ruback 2015 [as septentrionalis]
Torres-Carvajal, Sanchez-Nivicela, Posse, Celi & Koch 2020
Villa, Wilson & Johnson 1988 [as septentrionalis]
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Leptodeira rhombifera
Central American Banded Cat-eyed Snake | 
Auth 1994 [as annulata]
Barrio-Amoros 2019
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Duellman 1958
Ibanez, Solis, Jaramillo & Rand 2001 [as annulata]
Jaramillo, Wilson, Ibanez & Jaramillo 2010 [as annulata]
McCranie 2011
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988 [as annulata]
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Leptophis occidentalis
Guayaquil Parrot Snake | 
Albuquerque & Fernandes 2022
Albuquerque, Santos, Borges-Nojosa & Avila 2022
Auth 1994 [as L. ahaetulla]
Ibanez, Solis, Jaramillo & Rand 2001 [as L. ahaetulla]
Jaramillo, Wilson, Ibanez & Jaramillo 2010 [as L. ahaetulla]
Murphy, Charles, Lehtinen & Koeller 2013
Oliver 1948
Perez-Santos, Moreno & Gearhart 1993
Ray & Ruback 2015 [as L. ahaetulla]
Torres-Carvajal & Teran 2021
Villa, Wilson & Johnson 1988 [as L. ahaetulla]
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Genus
Lygophis (South American Striped Ground Snakes) |
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Genus
Masticophis (North American Whip Snakes and Coachwhips) |
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Mastigodryas alternatus
Central American Lizard Eater | 
Auth 1994 [as melanolomus]
Ibanez, Solis, Jaramillo & Rand 2001 [as melanolomus]
Jaramillo, Wilson, Ibanez & Jaramillo 2010 [as melanolomus]
McCranie 2011
Montingelli 2009
Montingelli, Grazziotin, Battilana, Murphy, Zhang & Zaher 2019
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988 [as melanolomus]
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Mastigodryas pleei
Many-lined Lizard Eater | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Batista, Hertz, Ponce & Lotzkat 2020
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Montingelli & Zaher 2011
Montingelli 2009
Montingelli, Grazziotin, Battilana, Murphy, Zhang & Zaher 2019
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Genus
Ninia (Coffee Snakes) |
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Genus
Oxybelis (Neotropical Vine Snakes) |
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Oxybelis brevirostris
Short-nosed Vine Snake | 
Auth 1994
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Oxybelis vittatus
Striped Vine Snake | 
Auth 1994 [as aeneus]
Ibanez, Solis, Jaramillo & Rand 2001 [as aeneus]
Jadin, Blair, Orlofske, Jowers, Rivas, Vitt, Ray, Smith & Murphy 2020
Jaramillo, Wilson, Ibanez & Jaramillo 2010 [as aeneus]
Keiser 1974 [as aeneus]
Keiser 1982 [as aeneus]
Perez-Santos, Moreno & Gearhart 1993 [as aeneus]
Ray & Ruback 2015 [as aeneus]
Villa, Wilson & Johnson 1988 [as aeneus]
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Oxyrhopus petolarius
Banded Calico Snake | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Genus
Phimophis (South American Shovel-nosed Snakes) |
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Pliocercus euryzonus
Southern False Coral Snake | 
Auth 1994
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Smith & Chiszar 2001
Villa, Wilson & Johnson 1988
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Rhadinaea decorata
Adorned Graceful Brown Snake | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Myers 1974
Perez-Santos, Moreno & Gearhart 1993
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Genus
Sibon (Neotropical Snail Eaters) |
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Sibon nebulatus
Cloudy Snail Eater | 
Auth 1994
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Harvey 2008
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Koehler, Lotzkat & Hertz 2010
Perez-Santos, Moreno & Gearhart 1993
Peters 1960
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Spilotes pullatus
Chicken Snake | 
Auth 1994
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Genus
Tantilla (American Centipede Snakes) |
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Tantilla alticola
Santa Rita Centipede Snake | 
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Myers, Ruane, Knight, Knight & Ray 2013
Perez-Santos, Moreno & Gearhart 1993
Solis, Ibanez & Jaramillo 1996
Villa, Wilson & Johnson 1988
Wilson & Mata-Silva 2015
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Trimetopon barbouri
Panamanian Dwarf Snake | 
Auth 1994
Derry, Ruback & Ray 2015
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Ray, DeCero, Ruback, Wedow & Knight 2013
Villa, Wilson & Johnson 1988
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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.) |  |  |
Family
Elapidae [part 2: marine species] (Sea Snakes) |  |  |
Genus
Epictia (Neotropical Thread Snakes) |
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Trilepida macrolepis
Large-scaled Thread Snake | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
McDiarmid, Campbell & Toure 1999
Perez-Santos, Moreno & Gearhart 1993
Peters & Orejas-Miranda 1970
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Bothriechis schlegelii
Eyelash Palm Pitviper | 
Auth 1994
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Campbell & Lamar 2004
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Bothrops asper
Central American Lancehead | 
Auth 1994
Barrio-Amoros, Quiroz, Porras-Ramirez, Villanueva-Maldonado, Estrada-Garcia & Batista 2023
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Campbell & Lamar 2004
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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Lachesis acrochorda
Chocoan Bushmaster | 
Barrio-Amoros, Corrales, Rodriguez, Culebras, Dwyer & Flores 2020
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Campbell & Lamar 2004
Fuentes & Corrales 2016
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993 [as L. m. muta]
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Porthidium lansbergi
Colombian Hognosed Pitviper | 
Auth 1994
Batista, Mebert, Miranda, Garces, Fuentes & Ponce 2020
Campbell & Lamar 2004
David, Dobiey & Vogel 2018
Ibanez, Solis, Jaramillo & Rand 2001
Jaramillo, Wilson, Ibanez & Jaramillo 2010
Perez-Santos, Moreno & Gearhart 1993
Ray & Ruback 2015
Villa, Wilson & Johnson 1988
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