Snakes of
Ecuador  

Related checklists:  Reptiles of Ecuador (main menu) - Ecuadorian mainland - Galapagos Islands

Bibliography of the reptiles of Ecuador
Home - Taxonomy - Geography - Biodiversity - Literature - Purchase RepFocus Recent updates
Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. www.repfocus.dk (Compilation date: 14th April, 2023).

Checklist
General remarks: The list includes only formally described species. Newly discovered, but still unnamed species are excluded. However, unnamed species or species unassigned to species level are included, if they are the only representatives of their genus in the region. Species counts exclude extinct and introduced species. Doubtful records, typically older voucher specimens of uncertain origin, have been excluded if considered questionable, as are records based on sources considered unreliable or controversial.
Note: Your comments to the checklist (omissions, errors, etc.) are welcomed, preferably if they are provided with reliable references. If possible, please attach a pdf file of the relevant reference to an email addressed to:
Snakes (Serpentes)
= endemicEX = extinct or assumed extinct

Species
References
 Family Aniliidae (South American Pipe Snake)
Genus Anilius (South American Pipe Snake)
 
Anilius scytale

South American Pipe Snake

Almendariz 1992 McDiarmid, Campbell & Toure 1999 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Wallach, Williams & Boundy 2014
 Family Anomalepididae (Neotropical Blind Snakes)
Genus Anomalepis (Odd-scaled Blind Snakes)
  *
Anomalepis flavapices

Esmeraldas Blind Snake

Almendariz 1992 Gonzalez-Carvajal, Medina-Rangel & Rojas-Murcia 2018 Kofron 1988 McDiarmid, Campbell & Toure 1999 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Wallach, Williams & Boundy 2014
Genus Liotyphlops (Smooth Blind Snakes)
  *
Liotyphlops petersii

Guayaquil Blind Snake

Almendariz 1992 Boulenger 1889 Dixon & Kofron 1984 [as albirostris] Linares-Vargas, Bolivar-Garcia, Herrera-Martinez, Osorio-Dominguez, Ospina, Thomas & Daza 2021 McDiarmid, Campbell & Toure 1999 [as albirostris] Miyata 1982 [as albirostris] Perez-Santos & Moreno 1991 [as albirostris] Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 [as albirostris]
 Family Boidae (Typical Boas)
Genus Boa (Red-tailed Boas)
 
Boa constrictor

South American Red-tailed Boa

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Stimson 1969 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Boa imperator

Central American Red-tailed Boa

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Stimson 1969 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Corallus (Tree Boas)
 
Corallus batesii

Southern Emerald Tree Boa

Henderson, Passos & Feitosa 2009 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Corallus blombergi

Ecuadorian Tree Boa

Cruz-Garcia, Cisneros-Heredia, Sanchez-Nivicela & Amador 2020 Henderson, Passos & Feitosa 2009 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Pinto-Erazo & Medina-Rangel 2018 Stimson 1969 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Valencia, Arbelaez, Garzon & Picerno-Toala 2008
 
Corallus hortulana

Amazon Tree Boa

Henderson 1997 Henderson 2002 McDiarmid, Campbell & Toure 1999 Miyata 1982 [as enydris] Peters & Orejas-Miranda 1970 [as enydris] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Epicrates (Rainbow Boas)
 
Epicrates cenchria

Common Rainbow Boa

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Duellman 1978 McDiarmid, Campbell & Toure 1999 Miyata 1982 Passos & Fernandes 2008 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Eunectes (Anacondas)
 
Eunectes murinus

Green Anaconda

Almendariz 1992 Dirksen 2000 Dirksen 2002 Miyata 1982 Perez-Santos & Moreno 1991 Stimson 1969 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 Family Colubridae (Typical Snakes or Colubrids)
Genus Atractus (Spindle Snakes)
 
Atractus arangoi

Putumayo Spindle Snake

Arteaga, Quezada, Vieira & Guayasamin 2022
 
Atractus atlas

Atlas Spindle Snake

Passos, Scanferla, Melo-Sampaio, Brito & Almendariz 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus carrioni

Loja Spindle Snake

Almendariz 1992 Arteaga, Mebert, Valencia, Cisneros-Heredia, Penafiel, Reyes-Puig, Vieira-Fernandes & Guayasamin 2017 Miyata 1982 Passos, Chiesse, Torres-Carvajal & Savage 2009 Passos, Echevarria & Venegas 2013 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus cerberus

Pacoche Spindle Snake

Arteaga, Mebert, Valencia, Cisneros-Heredia, Penafiel, Reyes-Puig, Vieira-Fernandes & Guayasamin 2017 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus collaris

Collared Spindle Snake

Almendariz 1992 Passos & Fernandes 2008 Passos, Prudente, Ramos, Caicedo-Portilla & Lynch 2018 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Prudente & Passos 2010 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus discovery

Amaluza Spindle Snake

Arteaga, Quezada, Vieira & Guayasamin 2022
  *
Atractus duboisi

Napo Spindle Snake

Koehler & Kieckbusch 2014 Passos, Chiesse, Torres-Carvajal & Savage 2009 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus dunni

North Ecuadorian Spindle Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Arteaga, Mebert, Valencia, Cisneros-Heredia, Penafiel, Reyes-Puig, Vieira-Fernandes & Guayasamin 2017 Cisneros-Heredia 2005 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus ecuadorensis

Ecuadorian Spindle Snake

Almendariz 1992 Koehler & Kieckbusch 2014 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus elaps

Black Spindle Snake

Almendariz 1992 Duellman 1978 Hoogmoed 1980 Miyata 1982 Passos, Chiesse, Torres-Carvajal & Savage 2009 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus esepe

Caimito Spindle Snake

Arteaga, Mebert, Valencia, Cisneros-Heredia, Penafiel, Reyes-Puig, Vieira-Fernandes & Guayasamin 2017 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus gaigeae

Southeast Ecuadorian Spindle Snake

Almendariz 1992 Miyata 1982 Passos & Fernandes 2008 Passos, Prudente, Ramos, Caicedo-Portilla & Lynch 2018 Passos, Ramos, Pinna & Prudente 2013 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Prudente & Passos 2010 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus gigas

Giant Spindle Snake

Arteaga, Bustamante & Guayasamin 2013 Myers & Schargel 2006 Passos, Dobiey & Venegas 2010 Tolhurst, Peck, Morales, Cane & Recchio 2010 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus iridescens

Iridescent Spindle Snake

Arteaga, Mebert, Valencia, Cisneros-Heredia, Penafiel, Reyes-Puig, Vieira-Fernandes & Guayasamin 2017 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus major

Brown Spindle Snake

Almendariz 1992 Arteaga, Quezada, Vieira & Guayasamin 2022 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Koehler & Kieckbusch 2014 Martins & Oliveira 1993 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Schargel, Lamar, Passos, Valencia, Cisneros-Heredia & Campbell 2013 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus michaelsabini

Corraleja Spindle Snake

Arteaga, Quezada, Vieira & Guayasamin 2022
 
Atractus microrhynchus

Guayaquil Spindle Snake

Almendariz 1992 [as A. occidentalis] Arteaga, Mebert, Valencia, Cisneros-Heredia, Penafiel, Reyes-Puig, Vieira-Fernandes & Guayasamin 2017 [as A. occidentalis] Miyata 1982 [as A. occidentalis] Passos, Cisneros-Heredia, Rivera, Aguilar & Schargel 2012 Passos, Mueses-Cisneros, Lynch & Fernandes 2009 Perez-Santos & Moreno 1991 [as A. occidentalis] Peters & Orejas-Miranda 1970 [as A. occidentalis] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 [as A. occidentalis]
  *
Atractus modestus

West Ecuadorian Spindle Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus multicinctus

Many-banded Spindle Snake

Almendariz 1992 Miyata 1982 Passos, Mueses-Cisneros, Lynch & Fernandes 2009 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus occipitoalbus

Grey Spindle Snake

Almendariz 1992 Passos & Fernandes 2008 Passos, Chiesse, Torres-Carvajal & Savage 2009 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus orcesi

Orellana Spindle Snake

Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Passos, Chiesse, Torres-Carvajal & Savage 2009 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus pachacamac

Sumaco Spindle Snake

Arteaga, Quezada, Vieira & Guayasamin 2022 Melo-Sampaio, Passos, Prudente, Venegas & Torres-Carvajal 2021
  *
Atractus paucidens

Pichincha Spindle Snake

Almendariz 1992 Miyata 1982 Passos, Mueses-Cisneros, Lynch & Fernandes 2009 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus resplendens

Resplendent Spindle Snake

Almendariz 1992 Arteaga, Quezada, Vieira & Guayasamin 2022 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus roulei

Alausi Spindle Snake

Almendariz 1992 Arteaga, Mebert, Valencia, Cisneros-Heredia, Penafiel, Reyes-Puig, Vieira-Fernandes & Guayasamin 2017 [as A. pyroni] Arteaga, Quezada, Vieira & Guayasamin 2022 Miyata 1982 Passos, Chiesse, Torres-Carvajal & Savage 2009 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 [as A. pyroni]
  *
Atractus savagei

Tulcan Spindle Snake

Salazar-Valenzuela, Torres-Carvajal & Passos 2014 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus torquatus

Rusty Spindle Snake

Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus touzeti

Guacamayos Spindle Snake

Schargel, Lamar, Passos, Valencia, Cisneros-Heredia & Campbell 2013 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Atractus typhon

Typhon Spindle Snake

Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Atractus ukupacha

El Chaco Spindle Snake

Melo-Sampaio, Passos, Prudente, Venegas & Torres-Carvajal 2021
  *
Atractus zgap

Santa Rosa Spindle Snake

Arteaga, Quezada, Vieira & Guayasamin 2022
Genus Chironius (Sipos)
 
Chironius exoletus

Green Sipo

Arteaga, Bustamante & Guayasamin 2013 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Dixon, Wiest & Cei 1993 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Chironius flavopictus

Yellow-spotted Sipo

Almendariz 1992 Dixon, Wiest & Cei 1993 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Chironius fuscus

Brown Sipo

Almendariz 1992 Dixon, Wiest & Cei 1993 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Chironius grandisquamis

Large-scaled Sipo

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Dixon, Wiest & Cei 1993 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 [as schlueteri] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Chironius leucometapus

White-fronted Sipo

Torres-Carvajal, Koch, Valencia, Venegas & Echevarria 2019
 
Chironius monticola

Mountain Sipo

Dixon, Wiest & Cei 1993 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Chironius multiventris

Peruvian Sipo

Almendariz 1992 Dixon, Wiest & Cei 1993 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Chironius scurrulus

Rusty Sipo

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Dixon, Wiest & Cei 1993 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Chlorosoma (Green Bush Racers)
 
Chlorosoma viridissimum

Emerald Bush Racer

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Freitas, Franca & Bernarde 2012 Miyata 1982 Perez-Santos & Moreno 1991 Thomas 1976 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Clelia (Northern Snake Eaters)
 
Clelia clelia

Common Snake Eater

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Cisneros-Heredia, Kuch, Lascano & Wuster 2007 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher 1996
 
Clelia equatoriana

Equatorial Snake Eater

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher 1996
Genus Coniophanes (Black-striped Snakes)
  *
Coniophanes dromiciformis

Ecuadorian Black-striped Snake

Almendariz 1992 Flores-Villela & Smith 2009 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Coniophanes fissidens

Central American Yellow-bellied Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Coniophanes longinquus

Peruvian Black-striped Snake

Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Dendrophidion (Forest Racers)
 
Dendrophidion bivittatum

Two-lined Forest Racer

Miyata 1982 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Valencia, Garzon-T. & Betancourt-Yepez 2007
 
Dendrophidion brunneum

Brown Forest Racer

Almendariz 1992 Cadle 2010 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dendrophidion clarkii

Panamanian Black-naped Forest Racer

Almendariz 1992 [as nuchalis] Arteaga, Bustamante & Guayasamin 2013 Cadle & Savage 2012 Lieb 1991 [as D. nuchale] McCranie 2011 Perez-Santos & Moreno 1991 [as D. nuchalis] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dendrophidion dendrophis

Tawny Forest Racer

Almendariz 1992 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Dendrophidion graciliverpa

El Oro Forest Racer

Arteaga, Bustamante & Guayasamin 2013 Cadle 2012 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dendrophidion prolixum

Cauca Forest Racer

Cadle 2012 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Diaphorolepis (Frog Eaters)
 
Diaphorolepis wagneri

Ecuadorian Frog Eater

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Dipsas (Neotropical Snail Eaters)
  *
Dipsas andiana

Andean Snail Eater

Almendariz 1992 [as nicholsi] Arteaga, Bustamante & Guayasamin 2013 Cadle & Myers 2003 Cadle 2005 Cisneros-Heredia 2007 Harvey 2008 Miyata 1982 [as nicholsi] Perez-Santos & Moreno 1991 [as nicholsi] Peters & Orejas-Miranda 1970 [as nicholsi] Peters 1965 [as nicholsi] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas bobridgelyi

El Oro Snail Eater

Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas catesbyi

Ornate Snail Eater

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Harvey & Embert 2008 Harvey 2008 Lima & Prudente 2009 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Peters 1960 Peters 1965 Sanchez-Martinez, Franca & Trevine 2022 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Dipsas elegans

Elegant Snail Eater

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Cadle 2005 Harvey 2008 Miyata 1982 Perez-Santos & Moreno 1991 Peters 1965 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Dipsas ellipsifera

Ibarra Snail Eater

Almendariz 1992 Cadle 2005 Harvey 2008 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Peters 1960 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Dipsas georgejetti

Manabi Snail Eater

Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas gracilis

Graceful Snail Eater

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Cadle 2005 Harvey & Embert 2008 Harvey 2008 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Peters 1960 Peters 1965 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas indica

Big-headed Snail Eater

Almendariz 1992 Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Harvey 2008 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Peters 1960 Peters 1965 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Dipsas jamespetersi

Zhila Snail Eater

Almendariz 1992 [as Sibynomorphus petersi] Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Harvey 2008 [as Sibynomorphus petersi] Perez-Santos & Moreno 1991 [as Sibynomorphus petersi] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Dipsas klebbai

Napo Snail Eater

Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Dipsas oligozonata

Azuay Snail Eater

Almendariz 1992 Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas oreas

Quito Snail Eater

Almendariz 1992 Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Cadle 2005 Harvey & Embert 2008 Harvey 2008 Miyata 1982 Peters & Orejas-Miranda 1970 Peters 1960 Peters 1965 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas oswaldobaezi

Loja Snail Eater

Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas palmeri

Tungurahua Snail Eater

Almendariz 1992 [as latifasciata] Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Boulenger 1912 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Miyata 1982 [as latifasciata] Perez-Santos & Moreno 1991 [as latifasciata] Peters & Orejas-Miranda 1970 [as latifasciata] Peters 1965 [as latifasciata] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas pavonina

Northern Snail Eater

Almendariz 1992 Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Duellman 1978 Lima & Prudente 2009 Miyata 1982 Perez-Santos & Moreno 1991 Peters 1960 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
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Dipsas temporalis

Esmeraldes Snail Eater

Almendariz 1992 Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Cadle 2005 Harvey 2008 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Peters 1960 Peters 1965 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas variegata

Many-banded Snail Eater

Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas vermiculata

Vermiculate Snail Eater

Almendariz 1992 Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Harvey & Embert 2008 Harvey 2008 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Peters 1960 Peters 1965 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Dipsas welborni

Zamora Chinchipe Snail Eater

Arteaga & Batista 2023
Genus Drepanoides (Amazon Egg Eater)
 
Drepanoides anomalus

Amazon Egg Eater

Almendariz 1992 Duellman 1978 Guedes, Queiroz, Sousa & Hamdan 2020 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Drymarchon (Indigo Snakes and Cribos)
 
Drymarchon corais

Yellow-tailed Cribo

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Drymarchon melanurus

Black-tailed Cribo

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Wuster, Yrausquin & Mijares-Urrutia 2001
Genus Drymobius (Central American Racers)
 
Drymobius rhombifer

Diamondback Racer

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Drymoluber (Glossy Racers)
 
Drymoluber dichrous

Northern Glossy Racer

Almendariz 1992 Caldeira-Costa, Ribeiro-Moura & Neves-Feio 2013 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Emmochliophis (Pichincha Snake and Paramba Fishing Snake)
  *
Emmochliophis fugleri

Pichincha Snake

Almendariz 1992 Maynard, Culebras, Kohn, Guayasamin & Trageser 2021 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Emmochliophis miops

Paramba Fishing Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Vera-Perez, Campbell & Montingelli 2020
Genus Erythrolamprus (Neotropical Smooth Snakes)
 
Erythrolamprus aesculapii

Southern Mock Coral Snake

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Curcio, Scali & Rodrigues 2015 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal & Hinojosa 2020 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Erythrolamprus albiventris

Quito Smooth Snake

Almendariz 1992 Dixon 1983 Dixon 1989 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal & Hinojosa 2020
 
Erythrolamprus breviceps

Short-headed Smooth Snake

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Dixon 1989 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Erythrolamprus epinephelus

Fire-bellied Smooth Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Dixon 1983 Dixon 1989 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Erythrolamprus festae

Santiago River Smooth Snake

Almendariz 1992 Dixon 1989 Dixon 2000 Entiauspe-Neto, Abegg, Koch, Nunez, Azevedo, Moraes, Tiutenko, Bialves & Loebmann 2021 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal & Hinojosa 2020 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Erythrolamprus fraseri

Ecuadorian Smooth Snake

Almendariz 1992 Dixon 1983 Dixon 1989 Entiauspe-Neto, Abegg, Koch, Nunez, Azevedo, Moraes, Tiutenko, Bialves & Loebmann 2021 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal & Hinojosa 2020
 
Erythrolamprus guentheri

Ecuadorian Mock Coral Snake

Almendariz 1992 Curcio, Scali & Rodrigues 2015 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Erythrolamprus lamonae

Sonson Smooth Snake

Almendariz 1992 Dixon 1983 Dixon 1989 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal & Hinojosa 2020
 
Erythrolamprus miliaris

Military Smooth Snake

Almendariz 1992 Dixon 1983 Dixon 1989 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Erythrolamprus mimus

Mimic Mock Coral Snake

Almendariz 1992 Curcio, Scali & Rodrigues 2015 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal & Hinojosa 2020 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Erythrolamprus pygmaeus

Amazon Dwarf Forest Snake

Almendariz 1992 Kawashita-Ribeiro, Carvalho, Lima, Avila & Fraga 2011 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Vechio, Teixeira-Junior, Recoder, Sena, Souza & Rodrigues 2015
 
Erythrolamprus reginae

Northern Royal Smooth Snake

Almendariz 1992 Ascenso, Costa & Prudente 2019 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Dixon 1989 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal & Hinojosa 2020 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Erythrolamprus subocularis

Paramba Smooth Snake

Boulenger 1902 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Erythrolamprus taeniogaster

Banded Smooth Snake

Almendariz 1992 [as cobellus dyticus] Dixon 1989 [as cobellus dyticus] Perez-Santos & Moreno 1991 [as cobella dyticus] Torres-Carvajal & Hinojosa 2020 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Erythrolamprus typhlus

Velvety Smooth Snake

Almendariz 1992 Dixon 1987 Dixon 1989 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Erythrolamprus vitti

Maldonado Smooth Snake

Dixon 2000 Entiauspe-Neto, Abegg, Koch, Nunez, Azevedo, Moraes, Tiutenko, Bialves & Loebmann 2021 Torres-Carvajal & Hinojosa 2020 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Eutrachelophis (Beautiful-necked Smooth Snakes)
 
Eutrachelophis bassleri

Loreto Smooth Snake

Myers & McDowell 2014 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher & Prudente 2019
Genus Helicops (South American Keelbacks)
 
Helicops angulatus

Brown-banded Keelback

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Roberto, Ribeiro, Sousa-Delfino & Oliveira-Almeida 2009 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Helicops leopardinus

Leopard Keelback

Cisneros-Heredia 2006 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Helicops pastazae

Pastaza River Keelback

Almendariz 1992 Miyata 1982 Moraes-da-Silva, Amaro, Sales Nunes, Rodrigues & Curcio 2021 Moraes-da-Silva, Amaro, Sales Nunes, Strussmann, Teixeira, Andrade, Sudre, Recoder, Rodrigues & Curcio 2019 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Rossman 1976 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Helicops petersi

Napo Keelback

Almendariz 1992 Miyata 1982 Moraes-da-Silva, Amaro, Sales Nunes, Rodrigues & Curcio 2021 Moraes-da-Silva, Amaro, Sales Nunes, Strussmann, Teixeira, Andrade, Sudre, Recoder, Rodrigues & Curcio 2019 Perez-Santos & Moreno 1991 Rossman 1976 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Hydrops (South American Mud Snakes)
 
Hydrops martii

Coral Mud Snake

Almendariz 1992 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Hydrops triangularis

Red-sided Mud Snake

Albuquerque & Lema 2008 Almendariz 1992 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Imantodes (American Blunt-headed Tree Snakes)
 
Imantodes cenchoa

Common Blunt-headed Tree Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Torres-Carvajal, Yanez-Munoz, Quirola, Smith & Almendariz 2012
 
Imantodes chocoensis

Chocoan Blunt-headed Tree Snake

Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Torres-Carvajal, Yanez-Munoz, Quirola, Smith & Almendariz 2012
 
Imantodes inornatus

Yellow Blunt-headed Tree Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Torres-Carvajal, Yanez-Munoz, Quirola, Smith & Almendariz 2012
 
Imantodes lentiferus

Amazon Blunt-headed Tree Snake

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Duellman 1978 Frota, Missassi, Santos-Costa & Prudente 2015 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Torres-Carvajal, Yanez-Munoz, Quirola, Smith & Almendariz 2012
Genus Incaspis (Andean Bush Racers)
  *
Incaspis amaru

Azuay Bush Racer

Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Arredondo, Valencia, Abbelaez, Rodrigues & Altamirano-Benavides 2014
 
Incaspis simonsii

Cajamarca Bush Racer

Almendariz 1992 Miyata 1982 Peters & Orejas-Miranda 1970 Thomas 1976 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Arredondo, Valencia, Abbelaez, Rodrigues & Altamirano-Benavides 2014
Genus Lampropeltis (King Snakes and Milk Snakes)
 
Lampropeltis micropholis

Southern Milk Snake

Almendariz 1992 Markel 1990 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Ruane 2015 Ruane, Bryson, Pyron & Burbrink 2014 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Leptodeira (Typical Cat-eyed Snakes)
 
Leptodeira annulata

South American Banded Cat-eyed Snake

Almendariz 1992 Barrio-Amoros 2019 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Duellman 1958 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Leptodeira approximans

Chayahuitas Banded Cat-eyed Snake

Costa, Graboski, Grazziotin, Zaher, Rodrigues & Prudente 2022
  *
Leptodeira misinawui

Jubones Cat-eyed Snake

Torres-Carvajal, Sanchez-Nivicela, Posse, Celi & Koch 2020
 
Leptodeira ornata

Panamanian Small-spotted Cat-eyed Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Barrio-Amoros 2019 Duellman 1958 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Sanchez-Nivicela, Posse, Celi & Koch 2020
Genus Leptophis (Neotropical Parrot Snakes)
 
Leptophis bocourti

Paramba Parrot Snake

Albuquerque & Fernandes 2022 Albuquerque, Santos, Borges-Nojosa & Avila 2022 Almendariz 1992 Boulenger 1898 Miyata 1982 Oliver 1948 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal & Teran 2021
 
Leptophis cupreus

Copper Parrot Snake

Albuquerque & McDiarmid 2010 Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal & Teran 2021 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Leptophis depressirostris

Satiny Parrot Snake

Almendariz 1992 Miyata 1982 Oliver 1948 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Leptophis nigromarginatus

Black-skinned Green Parrot Snake

Albuquerque & Fernandes 2022 Almendariz 1992 Miyata 1982 Oliver 1948 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal & Teran 2021
 
Leptophis occidentalis

Guayaquil Parrot Snake

Albuquerque & Fernandes 2022 Albuquerque, Santos, Borges-Nojosa & Avila 2022 Almendariz 1992 Miyata 1982 Oliver 1948 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal & Teran 2021
 
Leptophis riveti

Oblique Parrot Snake

Almendariz 1992 Miyata 1982 Oliver 1948 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal & Teran 2021 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Lygophis (South American Striped Ground Snakes)
 
Lygophis lineatus

Western Striped Ground Snake

Almendariz 1992 Dixon 1989 Michaud & Dixon 1987 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Mastigodryas (Neotropical Lizard Eaters)
 
Mastigodryas heathii

Peruvian Lizard Eater

Cadle 2012 Montingelli 2009 Montingelli, Valencia, Benavides & Zaher 2011 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Mastigodryas pulchriceps

Quito Lizard Eater

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Miyata 1982 Montingelli 2009 Montingelli, Grazziotin, Battilana, Murphy, Zhang & Zaher 2019 Montingelli, Valencia, Benavides & Zaher 2011 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Mastigodryas reticulatus

Guayaquil Lizard Eater

Montingelli 2009 Montingelli, Grazziotin, Battilana, Murphy, Zhang & Zaher 2019 Montingelli, Valencia, Benavides & Zaher 2011 Torres-Carvajal 2004 [as melanolomus] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Ninia (Coffee Snakes)
 
Ninia atrata

Red-naped Coffee Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Savage 2002 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Ninia hudsoni

Guyana White-collared Coffee Snake

Almendariz 1992 Angarita-Sierra 2014 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Ninia teresitae

Tumaco Coffee Snake

Angarita-Sierra 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Nothopsis (Rugose Litter Snake)
 
Nothopsis rugosus

Rugose Litter Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Oxybelis (Neotropical Vine Snakes)
 
Oxybelis aeneus

Brown Vine Snake

Almendariz 1992 [[part?]] Keiser 1974 [[part?]] Miyata 1982 [[part?]] Perez-Santos & Moreno 1991 [[part?]] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Oxybelis brevirostris

Short-nosed Vine Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Oxybelis fulgidus

Green Vine Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Oxybelis inkaterra

Peruvian Vine Snake

Torres-Carvajal, Mejia-Guerrero & Teran 2021
  *
Oxybelis transandinus

Bosqueira Vine Snake

Torres-Carvajal, Mejia-Guerrero & Teran 2021
Genus Oxyrhopus (Calico Snakes)
 
Oxyrhopus fitzingeri

Peruvian Calico Snake

Almendariz 1992 Cuadrado, Loor & Narvaez 2020 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Oxyrhopus leucomelas

Tolima Calico Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Oxyrhopus melanogenys

Black-headed Calico Snake

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Oxyrhopus occipitalis

Northern Calico Snake

Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Oxyrhopus petolarius

Banded Calico Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Oxyrhopus vanidicus

Leticia Calico Snake

Lynch 2009 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Phrynonax (Neotropical Bird Snakes)
 
Phrynonax sexcarinatus

Southern Bird Snake

Almendariz 1992 [as polylepis] Miyata 1982 [as polylepis] Perez-Santos & Moreno 1991 [as polylepis] Peters & Orejas-Miranda 1970 [as polylepis] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 [as polylepis]
 
Phrynonax shropshirei

Panamanian Bird Snake

Almendariz 1992 Miyata 1982 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Pliocercus (Big-scaled False Coral Snakes)
 
Pliocercus euryzonus

Southern False Coral Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Smith & Chiszar 2001 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Pseudalsophis (Neotropical Elegant Racers)
  *
Pseudalsophis biserialis

Eastern Galapagos Racer

Almendariz 1992 Denburgh 1912 Mertens 1960 Perez-Santos & Moreno 1991 Swash & Still 2005 Thomas 1997 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Yanez-Munoz, Rodrigues, Graboski, Machado, Altamirano-Benavides, Bonatto & Grazziotin 2018 Zug 2013
  *
Pseudalsophis darwini

Tortuga Racer

Almendariz 1992 [as Alsophis "sleveni"] Denburgh 1912 [as s. slevini] Swash & Still 2005 [as s. slevini] Thomas 1997 [as s. slevini] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Yanez-Munoz, Rodrigues, Graboski, Machado, Altamirano-Benavides, Bonatto & Grazziotin 2018 Zug 2013 [as slevini]
  *
Pseudalsophis dorsalis

Santa Cruz Racer

Almendariz 1992 Denburgh 1912 Mertens 1960 Perez-Santos & Moreno 1991 Swash & Still 2005 Thomas 1997 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Yanez-Munoz, Rodrigues, Graboski, Machado, Altamirano-Benavides, Bonatto & Grazziotin 2018 Zug 2013 [as biserialis]
 
Pseudalsophis elegans

South American Elegant Racer

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Pseudalsophis hephaestus

Santiago Racer

Almendariz 1992 [as Alsophis "sleveni"] Denburgh 1912 [as steindachneri] Mertens 1960 [as steindachneri] Swash & Still 2005 [as steindachneri] Thomas 1997 [as steindachneri] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Yanez-Munoz, Rodrigues, Graboski, Machado, Altamirano-Benavides, Bonatto & Grazziotin 2018 Zug 2013 [as steindachneri]
  *
Pseudalsophis hoodensis

Espanola Racer

Almendariz 1992 [as Philodryas "biseralis"] Denburgh 1912 Mertens 1960 Perez-Santos & Moreno 1991 Swash & Still 2005 Thomas 1997 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Yanez-Munoz, Rodrigues, Graboski, Machado, Altamirano-Benavides, Bonatto & Grazziotin 2018 Zug 2013
  *
Pseudalsophis occidentalis

Western Galapagos Racer

Almendariz 1992 [as Alsophis dorsalis] Denburgh 1912 Mertens 1960 Perez-Santos & Moreno 1991 Swash & Still 2005 Thomas 1997 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Yanez-Munoz, Rodrigues, Graboski, Machado, Altamirano-Benavides, Bonatto & Grazziotin 2018 Zug 2013 [as biserialis]
  *
Pseudalsophis slevini

Banded Galapagos Racer

Almendariz 1992 Denburgh 1912 Perez-Santos & Moreno 1991 Swash & Still 2005 Thomas 1997 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Yanez-Munoz, Rodrigues, Graboski, Machado, Altamirano-Benavides, Bonatto & Grazziotin 2018 Zug 2013
  *
Pseudalsophis steindachneri

Striped Galapagos Racer

Almendariz 1992 [as Alsophis "sleveni"] Denburgh 1912 Mertens 1960 Perez-Santos & Moreno 1991 Swash & Still 2005 Thomas 1997 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Yanez-Munoz, Rodrigues, Graboski, Machado, Altamirano-Benavides, Bonatto & Grazziotin 2018 Zug 2013
  *
Pseudalsophis thomasi

Rabida Racer

Almendariz 1992 [as Alsophis dorsalis] Denburgh 1912 [as d. dorsalis] Mertens 1960 [as d. dorsalis] Swash & Still 2005 [as d. dorsalis] Thomas 1997 [as d. dorsalis] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher, Yanez-Munoz, Rodrigues, Graboski, Machado, Altamirano-Benavides, Bonatto & Grazziotin 2018 Zug 2013 [as biserialis]
Genus Pseudoboa (Neotropical Scarlet Snakes)
 
Pseudoboa coronata

Black-headed Scarlet Snake

Almendariz 1992 Caldeira Costa, Cotta & MacCulloch 2015 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Pseudoeryx (Dusky Mud Snakes)
 
Pseudoeryx plicatilis

Dusky Mud Snake

Almendariz 1992 Perez-Santos & Moreno 1991 Scartozzoni, Trevine & Germano 2010 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Rhadinaea (Graceful Brown Snakes)
 
Rhadinaea decorata

Adorned Graceful Brown Snake

Almendariz 1992 Miyata 1982 Myers 1974 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Rhinobothryum (Ringed Snakes)
 
Rhinobothryum bovallii

False Tree Coral Snake

Almendariz 1992 Cruz-Garcia, Cisneros-Heredia, Sanchez-Nivicela & Amador 2020 Meza-Joya, Rojas-Morales & Ramo 2020 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Rhinobothryum lentiginosum

Amazon Ringed Snake

Almendariz 1992 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Saphenophis (Andean Smooth Ground Snakes)
  *
Saphenophis atahuallpae

Atahualpa Smooth Ground Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Saphenophis boursieri

Quito Smooth Ground Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Sibon (Neotropical Snail Eaters)
 
Sibon ayerbeorum

Munchique Snail Eater

Arteaga & Batista 2023
 
Sibon bevridgelyi

Maroon Snail Eater

Arteaga, Salazar-Valenzuela, Mebert, Penafiel, Aguiar, Sanchez-Nivicela, Pyron, Colston, Cisneros-Heredia, Yanez-Munoz, Venegas, Guayasamin & Torres-Carvajal 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Sibon dunni

Imbabura Snail Eater

Almendariz 1992 Kofron 1990 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Peters 1960 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Sibon leucomelas

Buenaventura Snail Eater

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Peters 1960 Peters 1965
 
Sibon marleyae

Verdecanandé Snail Eater

Arteaga & Batista 2023
 
Sibon vieirai

Pichincha Snail Eater

Arteaga & Batista 2023
Genus Siphlophis (Liana Snakes)
  *
Siphlophis ayauma

Devil's Head Liana Snake

Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Sheehy, Yanez-Munoz, Valencia & Smith 2014 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Siphlophis cervinus

Common Liana Snake

Almendariz 1992 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zaher & Prudente 1999
 
Siphlophis compressus

Red-headed Liana Snake

Almendariz 1992 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Spilotes (Chicken Snakes)
 
Spilotes pullatus

Chicken Snake

Almendariz 1992 Cruz-Garcia, Cisneros-Heredia, Sanchez-Nivicela & Amador 2020 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Spilotes sulphureus

Yellow-bellied Puffing Snake

Almendariz 1992 Andrade, Santos-Almeida & Reis-Dias 2017 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Stenorrhina (Scorpion Eaters)
 
Stenorrhina degenhardtii

South American Scorpion Eater

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Synophis (Andean Shadow Snakes)
  *
Synophis bicolor

Choco Shadow Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Pyron, Arteaga, Echevarria & Torres-Carvajal 2016 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Synophis bogerti

Wildsumaco Shadow Snake

Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Pyron, Arteaga, Echevarria & Torres-Carvajal 2016 Torres-Carvajal, Echevarria, Venegas, Chavez & Camper 2015 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Synophis calamitus

Pichincha Shadow Snake

Almendariz 1992 Hillis 1990 Pyron, Arteaga, Echevarria & Torres-Carvajal 2016 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Synophis lasallei

Cundinamarca Shadow Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Pyron, Arteaga, Echevarria & Torres-Carvajal 2016 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Synophis zaheri

El Oro Shadow Snake

Pyron, Arteaga, Echevarria & Torres-Carvajal 2016 Pyron, Guayasamin, Penafiel, Bustamante & Arteaga 2015 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Synophis zamora

Zamora Shadow Snake

Pyron, Arteaga, Echevarria & Torres-Carvajal 2016 Torres-Carvajal, Echevarria, Venegas, Chavez & Camper 2015 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Taeniophallus (Lowland Dwarf Leaf-litter Snakes)
 
Taeniophallus brevirostris

Short-nosed Leaf-litter Snake

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Miyata 1982 Myers 1974 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Tantilla (American Centipede Snakes)
 
Tantilla alticola

Santa Rita Centipede Snake

Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Tantilla andinista

Andean Centipede Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Wilson & Mata-Silva 2015 Wilson & Mena 1980 Wilson 1987
 
Tantilla capistrata

Jequetepeque Centipede Snake

Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Wilson & Mata-Silva 2015
  *
Tantilla insulamontana

Azuay Centipede Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Wilson & Mata-Silva 2015 Wilson & Mena 1980 Wilson 1990
 
Tantilla melanocephala

South American Black-headed Centipede Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 [as fraseri] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Wilson & Mena 1980 Wilson 1987 Wilson 1988
  *
Tantilla miyatai

Pichincha Centipede Snake

Almendariz 1992 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Wilson & Mata-Silva 2015 Wilson 1990
  *
Tantilla petersi

Imbabura Centipede Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Wilson & Mata-Silva 2015 Wilson 1979 Wilson 1991
 
Tantilla supracincta

Northern Banded Centipede Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 [as annulata] Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Wilson & Mata-Silva 2015 Wilson 1987
Genus Thamnodynastes (South American Mock Vipers)
 
Thamnodynastes pallidus

Common South American Mock Viper

Almendariz 1992 [as strigilis] Bailey, Thomas & Silva 2005 Miyata 1982 [as strigilis] Perez-Santos & Moreno 1991 [as strigilis] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Thamnodynastes silvai

Loreto Mock Viper

Trevine, Caicedo-Portilla, Hoogmoed, Thomas, Franco, Montingelli, Osorno-Munoz & Zaher 2021
Genus Tretanorhinus (Neotropical Swamp Snakes)
 
Tretanorhinus mocquardi

Panama Swamp Snake

Cisneros-Heredia 2005 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Tretanorhinus taeniatus

Striped Swamp Snake

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Urotheca (Glass-tailed Snakes)
 
Urotheca fulviceps

Tawny-headed Glass-tailed Snake

Almendariz 1992 Knight 1988 Miyata 1982 Myers 1974 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Urotheca lateristriga

Ribboned Glass-tailed Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Miyata 1982 Myers 1974 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Xenodon (Northern Mock Lanceheads and South American Hognose Snakes)
 
Xenodon rabdocephalus

Common Mock Lancehead

Almendariz 1992 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Xenodon severus

Giant Mock Lancehead

Almendariz 1992 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Xenopholis (South American Flat-headed Snakes)
 
Xenopholis scalaris

Northern Flat-headed Snake

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Hamdan, Machado & Citeli 2015 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Xenoxybelis (South American Vine Snakes)
 
Xenoxybelis argenteus

Green-striped Vine Snake

Almendariz 1992 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 Family Elapidae [part 1: terrestrial species] (Cobras, Mambas, etc.)
Genus Leptomicrurus (Black-backed Coral Snakes)
 
Leptomicrurus narduccii

Andean Black-backed Coral Snake

Almendariz 1992 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Leptomicrurus scutiventris

Pygmy Black-backed Coral Snake

Almendariz 1992 Campbell & Lamar 2004 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Micrurus (American Coral Snakes)
 
Micrurus ancoralis

Regal Coral Snake

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Micrurus bocourti

Ecuadorian Coral Snake

Almendariz 1992 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Micrurus catamayensis

Catamayo Coral Snake

Almendariz 1992 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Feitosa, Silva, Pires, Zaher & Prudente 2015 Perez-Santos & Moreno 1991 Roze 1996
 
Micrurus dumerilii

Capuchin Coral Snake

Almendariz 1992 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Micrurus helleri

Western Ribbon Coral Snake

Almendariz 1992 Campbell & Lamar 2004 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 [as M. lemniscatus] David, Dobiey & Vogel 2018 Duellman 1978 [as M. lemniscatus] Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 [as M. lemniscatus]
 
Micrurus langsdorffi

Northwest Amazonian Coral Snake

Almendariz 1992 Campbell & Lamar 2004 Duellman 1978 Feitosa, Silva, Pires, Zaher & Prudente 2015 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Micrurus mertensi

Pacasmayo Desert Coral Snake

Almendariz 1992 Campbell & Lamar 2004 Feitosa, Silva, Pires, Zaher & Prudente 2015 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Micrurus mipartitus

Red-tailed Coral Snake

Almendariz 1992 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Micrurus multiscutatus

Cauca Coral Snake

David, Dobiey & Vogel 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Micrurus obscurus

Western Amazonian Coral Snake

Almendariz 1992 Campbell & Lamar 2004 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 [as spixii] David, Dobiey & Vogel 2018 Duellman 1978 Miyata 1982 Nascimento, Silva, Feitosa & Prudente 2019 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 [as M. spixii]
 
Micrurus ornatissimus

Ornate Coral Snake

Almendariz 1992 Campbell & Lamar 2004 Feitosa, Silva, Pires, Zaher & Prudente 2015 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Micrurus ortoni

Pebas Coral Snake

Almendariz 1992 Bernarde, Turci, Abegg & Franco 2018 Campbell & Lamar 2004 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 [as M. hemprichii]
 
Micrurus peruvianus

Peruvian Coral Snake

Kuch, Ayala & Freire-L. 2002 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Micrurus petersi

Mountain Coral Snake

Almendariz 1992 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Feitosa, Silva, Pires, Zaher & Prudente 2015 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Micrurus steindachneri

Piedmont Coral Snake

Almendariz 1992 Campbell & Lamar 2004 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 David, Dobiey & Vogel 2018 Feitosa, Silva, Pires, Zaher & Prudente 2015 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Micrurus surinamensis

Amazonian Aquatic Coral Snake

Almendariz 1992 Campbell & Lamar 2004 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Micrurus tschudii

Desert Coral Snake

Almendariz 1992 Campbell & Lamar 2004 Miyata 1982 Perez-Santos & Moreno 1991 Roze 1996 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 Family Elapidae [part 2: marine species] (Sea Snakes)
Genus Hydrophis (Typical Sea Snakes)
 
Hydrophis platurus

Yellow-bellied Sea Snake

Almendariz 1992 Campbell & Lamar 2004 Denburgh 1912 Ernst 1992 Ineich 1988 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Reynolds & Pickwell 1984 Swash & Still 2005 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zug 2013
 Family Leptotyphlopidae (Thread Snakes)
Genus Epictia (Neotropical Thread Snakes)
 
Epictia signata

Northern Amazon Thread Snake

Francisco, Pinto & Fernandes 2012 Salazar-Valenzuela, Martins, Amador-Oyola & Torres-Carvajal 2015 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Epictia subcrotilla

Tumbes Thread Snake

Almendariz 1992 Cisneros-Heredia 2008 McDiarmid, Campbell & Toure 1999 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Salazar-Valenzuela, Martins, Amador-Oyola & Torres-Carvajal 2015 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Trilepida (Three-scaled Thread Snakes)
  *
Trilepida anthracina

Ecuadorian Thread Snake

Almendariz 1992 Cisneros-Heredia 2008 McDiarmid, Campbell & Toure 1999 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Pinto & Fernandes 2012 Salazar-Valenzuela, Martins, Amador-Oyola & Torres-Carvajal 2015 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Trilepida guayaquilensis

Guayaquil Thread Snake

Almendariz 1992 Cisneros-Heredia 2008 McDiarmid, Campbell & Toure 1999 Miyata 1982 Perez-Santos & Moreno 1991 Pinto & Fernandes 2012 Salazar-Valenzuela, Martins, Amador-Oyola & Torres-Carvajal 2015 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Trilepida macrolepis

Large-scaled Thread Snake

Martins, Koch, Pinto, Folly, Fouquet & Passos 2019 Pinto & Fernandes 2017 Salazar-Valenzuela, Martins, Amador-Oyola & Torres-Carvajal 2015 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Trilepida pastusa

Tulcan Thread Snake

Martins, Koch, Pinto, Folly, Fouquet & Passos 2019 Salazar-Valenzuela, Martins, Amador-Oyola & Torres-Carvajal 2015 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 Family Tropidophiidae (Dwarf Boas)
Genus Trachyboa (Rough-scaled Dwarf Boas)
 
Trachyboa boulengeri

Northern Rough-scaled Dwarf Boa

Almendariz 1992 McDiarmid, Campbell & Toure 1999 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Stimson 1969 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Trachyboa gularis

Southern Rough-scaled Dwarf Boa

Almendariz 1992 McDiarmid, Campbell & Toure 1999 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Stimson 1969 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Tropidophis (Typical Dwarf Boas)
  *
Tropidophis battersbyi

Ecuadorian Dwarf Boa

Almendariz 1992 Curcio, Nunes, Argolo, Skuk & Rodrigues 2012 McDiarmid, Campbell & Toure 1999 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Tropidophis cacuangoae

Napo Dwarf Boa

Ortega-Andrade, Bentley, Koch, Yanez-Munoz & Entiauspe-Neto 2022
 
Tropidophis taczanowskyi

Peruvian Dwarf Boa

Almendariz 1992 Curcio, Nunes, Argolo, Skuk & Rodrigues 2012 McDiarmid, Campbell & Toure 1999 Miyata 1982 Perez-Santos & Moreno 1991 Peters & Orejas-Miranda 1970 Stimson 1969 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 Family Typhlopidae (Typical Blind Snakes)
Genus Amerotyphlops (American Blind Snakes)
 
Amerotyphlops reticulatus

Reticulated Blind Snake

Almendariz 1992 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 Dixon & Hendricks 1979 Graboski, Arredondo, Grazziotin, Silva, Prudente, Rodrigues, Bonatto & Zaher 2019 McDiarmid, Campbell & Toure 1999 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 Family Viperidae (Vipers)
Genus Bothriechis (Palm Pitvipers)
 
Bothriechis schlegelii

Eyelash Palm Pitviper

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Bothrocophias (Toad-headed Pitvipers)
  *
Bothrocophias campbelli

Ecuadorian Toad-headed Pitviper

Arteaga, Bustamante & Guayasamin 2013 Campbell & Lamar 2004 Cisneros-Heredia, Borja, Proano & Touzet 2006 David, Dobiey & Vogel 2018 Gutberlet & Campbell 2001 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Bothrocophias hyoprora

Amazonian Toad-headed Pitviper

Almendariz 1992 Bernarde, Amaral & Vale 2011 Campbell & Lamar 2004 Cisneros-Heredia, Borja, Proano & Touzet 2006 David, Dobiey & Vogel 2018 Miyata 1982 Oliveira, Araujo, Prudente, Fraga, Almeida & Ascenso 2018 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Bothrocophias microphthalmus

Small-eyed Toad-headed Pitviper

Almendariz 1992 Campbell & Lamar 2004 Cisneros-Heredia, Borja, Proano & Touzet 2006 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
Genus Bothrops (American Lanceheads)
 
Bothrops asper

Central American Lancehead

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Bothrops atrox

Common Lancehead

Almendariz 1992 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
 
Bothrops bilineatus

Two-striped Forest Pitviper

Almendariz 1992 Campbell & Lamar 2004 Carrasco, Grazziotin, Farfan, Koch, Ochoa, Scrocchi, Leynaud & Chaparro 2019 David, Dobiey & Vogel 2018 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
 
Bothrops brazili

Southern Velvety Lancehead

David, Dobiey & Vogel 2018 Perez-Santos & Moreno 1991 Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
 
Bothrops lojanus

Lojan Lancehead

Almendariz 1992 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
  *
Bothrops osbornei

Chimborazo Lancehead

Almendariz 1992 [as mahnerti] Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Schatti & Kramer 1991 [as mahnerti] Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
 
Bothrops pulcher

Andean Forest Pitviper

Almendariz 1992 Campbell & Lamar 2004 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 David, Dobiey & Vogel 2018 Miyata 1982 [as Bothrops albocarinatus] Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
 
Bothrops punctatus

Chocoan Lancehead

Almendariz 1992 Arteaga, Bustamante & Guayasamin 2013 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Bothrops taeniatus

Speckled Forest Pitviper

Almendariz 1992 Campbell & Lamar 2004 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 David, Dobiey & Vogel 2018 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Souza, Venancio, Freitas, Souza & Verissimo 2013 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Vechio, Prates, Grazziotin, Graboski & Rodrigues 2021
Genus Lachesis (Bushmasters)
 
Lachesis acrochorda

Chocoan Bushmaster

Barrio-Amoros, Corrales, Rodriguez, Culebras, Dwyer & Flores 2020 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019
 
Lachesis muta

South American Bushmaster

Almendariz 1992 Barrio-Amoros, Corrales, Rodriguez, Culebras, Dwyer & Flores 2020 Campbell & Lamar 2004 Camper, Torres-Carvajal, Ron, Nilsson, Arteaga, Knowles & Arbogast 2021 David, Dobiey & Vogel 2018 Duellman 1978 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Zamudio & Greene 1997
Genus Porthidium (Hognosed Pitvipers)
  *
Porthidium arcosae

Manabi Hognosed Pitviper

Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019 Valencia, Vaca-Guerrero & Garzon 2011
 
Porthidium nasutum

Rainforest Hognosed Pitviper

Almendariz 1992 Campbell & Lamar 2004 David, Dobiey & Vogel 2018 Miyata 1982 Perez-Santos & Moreno 1991 Torres-Carvajal, Pazmino-Otamendi & Salazar-Valenzuela 2019