Snakes of Mexico   Vipers (Viperidae)   Related checklists:  Mexico (main menu) - Snakes of Mexico (menu) - Aguascalientes - Baja California Norte - Baja California Sur - Campeche - Chiapas - Chihuahua - Coahuila - Colima - Distrito Federal - Durango - Guanajuato - Guerrero - Hidalgo - Jalisco - Mexico (state) - Michoacan - Morelos - Nayarit - Nuevo Leon - Oaxaca - Puebla - Queretaro - Quintana Roo - San Luis Potosi - Sinaloa - Sonora - Tabasco - Tamaulipas - Tlaxcala - Veracruz - Yucatan - Zacatecas Bibliography of the reptiles of Mexico

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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 Viperidae (Vipers) Genus Agkistrodon (American Copperheads, Cottonmouths, and Cantils)   Agkistrodon bilineatus Western Cantil Alvarado-Diaz, Suazo-Ortuno, Wilson & Medina-Aguilar 2013 Alvarez del Toro 1982 Arenas-Monroy & Ahumada-Carrillo 2015 Bryson & Mendoza-Quijano 2007 Campbell & Lamar 2004 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Castro-Franco & Bustos-Zagal 1994 Castro-Franco & Bustos-Zagal 2004 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 Cruz-Saenz, Guerrero-Vazquez, Lazcano & Tellez-Lopez 2009 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Davis & Smith 1953 Diaz-Padilla, Escobedo-Galvan & Cupul-Magana 2021 Dixon, Sabbath & Worthington 1962 Duellman 1958 Duellman 1965 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Flores-Villela 1993 Garcia-Grajales & Buenrostro-Silva 2011 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Gloyd & Conant 1990 Grunwald, Perez-Rivera, Ahumada-Carrillo, Franz-Chavez & Forest 2016 Hardy & McDiarmid 1969 Heimes 2016 Johnson 1990 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Lemos-Espinal & Smith 2007 Lemos-Espinal & Smith 2020 Lemos-Espinal, Smith & Rorabaugh 2019 Lemos-Espinal, Smith, Pierce & Painter 2020 Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 Liner 1994 Liner 2007 Loc-Barragan & Lazcano 2018 Loc-Barragan, Lazcano & Woolrich-Pina 2018 Loc-Barragan, Sosa-Hernandez, Grunwald, Miramontes-Medina, Banuelos-Alamillo, Woolrich-Pina & Lazcano 2019 Luna-Reyes & Suarez-Velazquez 2008 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 Medina-Aguilar, Alvarado-Diaz & Suazo-Ortuno 2011 Nolasco-Luna, Barraza-Soltero, Lopez-Montes, Moreno-Lopez & Escobedo-Galvan 2022 Palacios-Aguilar & Flores-Villela 2018 Palacios-Aguilar & Santos-Bibiano 2020 Palacios-Aguilar, Ochoa-Ochoa, Colin-Martinez, Hernandez-Rubio & Soria-Ortiz 2022 Perez-Ramos, Riva & Uribe-Pena 2000 Porras, Wilson, Schuett & Reiserer 2013 Reyes-Velasco, Grunwald, Jones & Ahumada-Carrillo 2020 Rojo-Gutierrez, Jaimes-Rodriguez, Cruz-Saenz, Lopez-Fernandez, Chavez-Uribe & Lazcano 2018 Rorabaugh 2008 Smith & Chiszar 2001 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017 Woolrich-Pina, Ponce-Campos, Loc-Barragan, Ramirez-Silva, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2016 Zweifel 1960   Agkistrodon laticinctus Broad-banded Copperhead Campbell & Lamar 2004 [as contortrix pictigaster] Flores-Villela 1993 [as contortrix] Gloyd & Conant 1990 [as contortrix] Heimes 2016 Lazcano, Nevarez-de los Reyes, Garcia-Padilla, Johnson, Mata-Silva, DeSantis & Wilson 2019 Lemos-Espinal & Smith 2007 Lemos-Espinal & Smith 2016 [as contortrix] Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 [as contortrix] Liner 1994 Liner 2007 Wilson & Johnson 2010 [as contortrix] Wilson, Mata-Silva & Johnson 2013 [as contortrix]   Agkistrodon russeolus Yucatan Cantil Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022 Campbell & Lamar 2004 Cedeno-Vazquez, Calderon-Mandujano & Pozo 2003 [as bilineatus] Charruau, Escobedo-Galvan, Koller-Gonzalez & Morales-Garduza 2014 Duellman 1965 [as A. b. bilineatus] Gloyd & Conant 1990 Gloyd 1972 Gonzalez-Sanchez, Johnson, Garcia-Padilla, Mata-Silva, DeSantis & Wilson 2017 Heimes 2016 Lee 1996 Liner 1994 Liner 2007 Porras, Wilson, Schuett & Reiserer 2013   * Agkistrodon taylori Ornate Cantil Bryson & Mendoza-Quijano 2007 Campbell & Lamar 2004 Contreras Arquieta & Lazcano Villarreal 1995 Cruz-Elizalde, Ramirez-Bautista, Hernandez-Salinas, Berriozabal-Islas & Wilson 2019 Cruz-Elizalde, Ramirez-Bautista, Pineda-Lopez, Mata-Silva, DeSantis, Garcia-Padilla, Johnson, Rocha, Fucsko & Wilson 2022 Farr, Lazcano & Lavin-Murcio 2013 Gloyd & Conant 1990 Heimes 2016 Lazcano, Farr, Lavin-Murcio, Contreras-Lozano, Kardon, Narvaez-Torres & Chaves-Cisneros 2009 Lazcano, Galvan & Kardon 2000 Lemos-Espinal & Dixon 2013 Lemos-Espinal & Smith 2015 Lemos-Espinal, Smith & Cruz 2016 Lemos-Espinal, Smith & Cruz 2018 Lemos-Espinal, Smith & Woolrich-Pina 2018 Liner 1994 Liner 2007 Martin 1958 Nevarez-de los Reyes, Lazcano, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Ortiz-Ortiz, Barrera-Morales, Morales-Capellan & Fernandez-Badilllo 2022 Porras, Wilson, Schuett & Reiserer 2013 Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Smith & Darling 1952 Teran-Juarez, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Tovar-Tovar & Mendoza-Quijano 2001 Wallach, Williams & Boundy 2014 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Genus Bothriechis (Palm Pitvipers)   Bothriechis aurifer Yellow-blotched Palm Pitviper Alvarez del Toro 1982 Campbell & Lamar 2004 Flores-Villela 1993 Heimes 2016 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Bothriechis bicolor Guatemalan Palm Pitviper Alvarez del Toro 1982 Campbell & Lamar 2004 Clause, Luna-Reyes, Jimenez Lang, Nieto-Montes de Oca & Martinez Hernandez 2020 Flores-Villela 1993 Heimes 2016 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Meneses-Millan & Garcia-Padilla 2015 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Bothriechis rowleyi Mexican Palm Pitviper Campbell & Lamar 2004 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Flores-Villela 1993 Grunwald, Perez-Rivera, Ahumada-Carrillo, Franz-Chavez & Forest 2016 Gutberlet 1995 Heimes 2016 Hernandez-Diaz & Martinez-Vaca Leon 2021 Jimenez-Lang, Vidal-Lopez & Luna-Reyes 2002 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Bothriechis schlegelii Eyelash Palm Pitviper Alvarez del Toro 1982 Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022 Campbell & Lamar 2004 Flores-Villela 1993 Grunwald, Perez-Rivera, Ahumada-Carrillo, Franz-Chavez & Forest 2016 Heimes 2016 Hernandez-Ordonez, Arroyo-Rodriguez, Gonzalez-Hernandez, Russildi, Luna-Reyes, Martinez-Ramos & Reynoso 2015 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Wylie & Grunwald 2016 Genus Bothrops (American Lanceheads)   Bothrops asper Central American Lancehead Alvarez del Toro 1982 Auth, Smith, Brown & Lintz 2000 Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022 Cabrera-Hernandez, Toledo Gonzalez & Enriquez Robles 2018 Campbell & Lamar 2004 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Cruz-Elizalde, Ramirez-Bautista, Hernandez-Salinas, Berriozabal-Islas & Wilson 2019 Cruz-Elizalde, Ramirez-Bautista, Pineda-Lopez, Mata-Silva, DeSantis, Garcia-Padilla, Johnson, Rocha, Fucsko & Wilson 2022 Dixon & Lemos-Espinal 2010 Duellman 1965 Flores-Villela 1993 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Gonzalez-Sanchez, Johnson, Garcia-Padilla, Mata-Silva, DeSantis & Wilson 2017 Heimes 2016 Hernandez-Ordonez, Arroyo-Rodriguez, Gonzalez-Hernandez, Russildi, Luna-Reyes, Martinez-Ramos & Reynoso 2015 Johnson, Ely & Webb 1976 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Koehler, Cedeno-Vazquez & Beutelspacher-Garcia 2016 Lee 1996 Lemos-Espinal & Dixon 2013 Lemos-Espinal & Smith 2015 Lemos-Espinal, Smith & Woolrich-Pina 2018 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Luz, Lemos-Espinal & Smith 2016 Martin 1955 [as atrox] Martin 1958 [as atrox] Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 Nahuat-Cervera, Hernandez-Betancourt & Diaz-Gamboa 2020 Perez-Higareda & Smith 1991 Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Rendon, Alvarez & Flores-Villela 1998 Shreve 1957 [as atrox] Smith 1960 Taylor 1949 Taylor 1950 Taylor 1952 Teran-Juarez, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Torres-Angeles, Hernandez-Hernandez & Fernandez-Badillo 2016 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Vasquez-Cruz & Canseco-Marquez 2020 Webb & Fugler 1957 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017 Genus Cerrophidion (Central American Montane Pitvipers)   Cerrophidion godmani Guatemalan Montane Pitviper Alvarez del Toro 1982 Auth, Smith, Brown & Lintz 2000 Campbell & Lamar 2004 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Flores-Villela 1993 Heimes 2016 Jadin, Townsend, Castoe & Campbell 2012 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 Smith & Williams 1963 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Cerrophidion petlalcalensis Petlalcala Montane Pitviper Campbell & Lamar 2004 Heimes 2016 Liner 2007 Lopez-Luna, Vogt, & Torre-Loranca 1999 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Torre-Loranca, Grunwald, Valdenegro-Brito, Cervantes-Burgos & Garcia-Vazquez 2019 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Cerrophidion tzotzilorum Tzotzil Montane Pitviper Campbell & Lamar 2004 Flores-Villela 1993 Heimes 2016 Jadin 2010 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Genus Crotalus (Typical Rattlesnakes)   * Crotalus angelensis Angel de la Guarda Island Speckled Rattlesnake Campbell & Lamar 2004 Douglas, Douglas, Schuett, Porras & Thomason 2007 Grismer 2002 Harris & Simmons 1977 Heimes 2016 Liner 1994 Liner 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus aquilus Queretaran Dusky Rattlesnake Alvarado-Diaz, Suazo-Ortuno, Wilson & Medina-Aguilar 2013 Auth, Smith, Brown & Lintz 2000 Bryson, Linkem, Dorcas, Lathrop, Jones, Alvarado-Diaz, Grunwald & Murphy 2014 Camarillo-R. & Smith (in Strimple & Strimple) 1992 Campbell & Lamar 2004 Carbajal-Marquez, Gonzalez-Saucedo & Arenas-Monroy 2015 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 Cruz-Elizalde, Ramirez-Bautista, Hernandez-Salinas, Berriozabal-Islas & Wilson 2019 Cruz-Elizalde, Ramirez-Bautista, Johnson & Moreno 2014 Cruz-Elizalde, Ramirez-Bautista, Pineda-Lopez, Mata-Silva, DeSantis, Garcia-Padilla, Johnson, Rocha, Fucsko & Wilson 2022 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Dixon & Lemos-Espinal 2010 Dorcas 1992 Duellman 1965 Fernandez-Badillo & Goyenechea 2010 Fernandez-Badillo, Manriquez-Moran, Castillo-Ceron & Goyenechea 2016 Flores-Villela 1993 Golay, Smith, Broadley, Dixon, McCarthy, Rage, Schatti & Toriba 1993 Heimes 2016 Lara-Galvan, Martinez-Montoya, Sigala-Rodriguez, Esparza-Estrada, Rosas-Rosas, Avila-Herrera & Barbosa 2020 Lemos-Espinal & Dixon 2013 Lemos-Espinal & Smith 2015 Lemos-Espinal & Smith 2020 Lemos-Espinal, Smith & Woolrich-Pina 2018 Leyte-Manrique, Mata-Silva, Baez-Montes, Fucsko, DeSantis, Garcia-Padilla, Rocha, Johnson, Porras & Wilson 2022 Leyte-Manrique, Morales-Castorena & Escobedo-Morales 2016 Liner 1994 Liner 2007 McCranie & Wilson 2001 Mendoza-Quijano, Mejenes-Lopez, Reynoso-Rosales, Estrada-Hernandez & Rodriguez-Blanco 2001 Peralta-Hernandez, Corona-Garduno, Perea-Perez & Garcia-Vazquez 2020 Perez-Higareda & Smith 1991 [as C. triseriatus quadrangularis] Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Reyes-Velasco, Grunwald, Jones, Price & Fisher 2012 Taylor 1949 [as t. triseriatus] Taylor 1953 [as t. triseriatus] Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Valdez-Renteria, Fernandez-Badillo, Olvera-Olvera, Sanchez-Martinez & Goyenechea 2018 Valencia-Hernandez, Goyenechea & Castillo-Ceron 2007 Vazquez-Diaz & Quintero-Diaz 2005 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus armstrongi Western Dusky Rattlesnake Auth, Smith, Brown & Lintz 2000 [as C. t. triseriatus] Bryson, Linkem, Dorcas, Lathrop, Jones, Alvarado-Diaz, Grunwald & Murphy 2014 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 [as triseriatus] Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Heimes 2016 Liner 1994 Liner 2007 Reyes-Velasco, Grunwald, Jones & Ahumada-Carrillo 2020 Reyes-Velasco, Hermosillo-Lopez, Grunwald & Avila-Lopez 2009 Woolrich-Pina, Ponce-Campos, Loc-Barragan, Ramirez-Silva, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2016   Crotalus atrox Western Diamondback Rattlesnake Arnaud, Lazcano & Wilson 2019 Auth, Smith, Brown & Lintz 2000 Campbell & Lamar 2004 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Castaneda-Gaytan, Garcia-de la Pena, Lazcano & Salas-Westphal 2005 Chrapliwy & Fugler 1955 Contreras Arquieta & Lazcano Villarreal 1995 Contreras-Lozano, Lazcano & Contreras-Balderas 2019 Contreras-Lozano, Lazcano, Garcia-Salas & Contreras-Balderas 2013 Cruz-Elizalde, Ramirez-Bautista, Hernandez-Salinas, Berriozabal-Islas & Wilson 2019 Cruz-Elizalde, Ramirez-Bautista, Johnson & Moreno 2014 Cruz-Elizalde, Ramirez-Bautista, Pineda-Lopez, Mata-Silva, DeSantis, Garcia-Padilla, Johnson, Rocha, Fucsko & Wilson 2022 Dixon & Lemos-Espinal 2010 Dixon, Ketchersid & Lieb 1972 Dixon, Sabbath & Worthington 1962 Enderson, Devender & Bezy 2014 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Fernandez-Badillo & Goyenechea 2010 Fernandez-Badillo, Manriquez-Moran, Castillo-Ceron & Goyenechea 2016 Flores-Villela 1993 Gadsden, Estrada-Rodrigues & Leyva-Pacheco 2006 Grismer 2002 Hardy & McDiarmid 1969 Harris & Simmons 1977 Heimes 2016 Hernandez, Herr, Stevens, Cork, Medina-Nava, Vialpando, Warfel, Fields, Brodie & Graham 2019 Lara-Galvan, Martinez-Montoya, Sigala-Rodriguez, Esparza-Estrada, Rosas-Rosas, Avila-Herrera & Barbosa 2020 Lazcano, Banda, Castaneda, Garcia-de la Pena & Rojas 2006 Lazcano, Contreras-Lozano, Gallardo-Valdez, Garcia del Pena & Castaneda 2009 Lazcano, Galvan & Kardon 2000 Lazcano, Garcia-Salas, Banda-Leal, Wilson, Favela-Lara, Solis-Baraja & Pacheco-Trevino 2020 Lazcano, Nevarez-de los Reyes, Garcia-Padilla, Johnson, Mata-Silva, DeSantis & Wilson 2019 Lazcano, Sanchez-Almazan, Garcia-de la Pena, Castaneda & Contreras-Balderas 2007 Lemos-Espinal & Dixon 2013 Lemos-Espinal & Smith 2007 Lemos-Espinal & Smith 2015 Lemos-Espinal & Smith 2016 Lemos-Espinal & Smith 2020 Lemos-Espinal, Smith & Cruz 2016 Lemos-Espinal, Smith & Cruz 2018 Lemos-Espinal, Smith & Rorabaugh 2019 Lemos-Espinal, Smith & Woolrich-Pina 2018 Lemos-Espinal, Smith, Gadsden-Esparza, Valdez-Lares & Woolrich-Pina 2018 Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 Leyte-Manrique, Mata-Silva, Baez-Montes, Fucsko, DeSantis, Garcia-Padilla, Rocha, Johnson, Porras & Wilson 2022 Liner 1964 Liner 1994 Liner 2007 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 Matias-Ferrer & Murillo 2004 Nevarez-de los Reyes, Lazcano, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Perez-Higareda & Smith 1991 Quintero-Diaz & Carbajal-Marquez 2017 Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Rorabaugh 2008 Smith & Darling 1952 Smith, Lemos-Espinal & Heimes 2005 Tanner 1985 Taylor 1949 Taylor 1952 Taylor 1953 Teran-Juarez, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Valdez-Lares, Muniz-Martinez, Gadsden, Aguirre-Leon, Castaneda-Gaytan & Gonzalez-Trapaga 2013 Valdez-Renteria, Fernandez-Badillo, Olvera-Olvera, Sanchez-Martinez & Goyenechea 2018 Valencia-Hernandez, Goyenechea & Castillo-Ceron 2007 Villalobos-Juarez & Sigala-Rodriguez 2019 Vite-Silva, Ramirez-Bautista & Hernandez-Salinas 2010 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Zweifel & Norris 1955   * Crotalus basiliscus Mexican West Coast Rattlesnake Ahumada-Carillo, Grunwald, Lopez-Cuellar & Jones 2020 Ahumada-Carillo, Vazquez-Huizar, Vazquez-Diaz & Garcia-Vazquez 2011 Alvarado-Diaz, Suazo-Ortuno, Wilson & Medina-Aguilar 2013 Campbell & Lamar 2004 Carbajal-Marquez, Banuelos-Alamillo, Rivas-Mercado, Quintero-Diaz & Dominguez-de la Riva 2015 Carbajal-Marquez, Quintero-Diaz & Rivas-Mercado 2015 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 Cruz-Saenz, Guerrero-Vazquez, Lazcano & Tellez-Lopez 2009 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Duellman 1958 Duellman 1965 Enderson, Devender & Bezy 2014 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Flores-Villela 1993 Fouquette & Rossman 1963 Hardy & McDiarmid 1969 Heimes 2016 Lara-Galvan, Martinez-Montoya, Sigala-Rodriguez, Esparza-Estrada, Rosas-Rosas, Avila-Herrera & Barbosa 2020 Lemos-Espinal & Smith 2007 Lemos-Espinal & Smith 2020 Lemos-Espinal, Chiszar & Smith 2004 Lemos-Espinal, Smith & Rorabaugh 2019 Lemos-Espinal, Smith, Pierce & Painter 2020 Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 Liner 1994 Liner 2007 Loc-Barragan & Lazcano 2018 Loc-Barragan, Lazcano & Woolrich-Pina 2018 Loc-Barragan, Sosa-Hernandez, Grunwald, Miramontes-Medina, Banuelos-Alamillo, Woolrich-Pina & Lazcano 2019 Reyes-Velasco, Grunwald, Jones & Ahumada-Carrillo 2020 Rojo-Gutierrez, Jaimes-Rodriguez, Cruz-Saenz, Lopez-Fernandez, Chavez-Uribe & Lazcano 2018 Rorabaugh 2008 Smith & Gelder 1955 Smith, Lemos-Espinal & Heimes 2005 Williams & Arce 2021 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Ponce-Campos, Loc-Barragan, Ramirez-Silva, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2016 Zweifel 1959   * Crotalus brunneus Oaxacan Pygmy Rattlesnake Campbell & Armstrong 1979 Campbell & Lamar 2004 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 [as ravus] Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 [as ravus] Harris & Simmons 1978 Heimes 2016 Liner 1994 Liner 2007 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 [as ravus] Peterson, Canseco-Marquez, Contreras-Jimenez, Escalona-Segura, Flores-Villela, Garcia-Lopez, Hernandez-Banos, Jimenez-Ruiz, Leon-Paniagua, Amaro, Navarro-Siguenza, Sanchez-Cordero & Willard 2004 [as ravus]   * Crotalus caliginis Coronado Sur Island Rattlesnake Campbell & Lamar 2004 Grismer 2002 Harris & Simmons 1977 Heimes 2016 Liner 1994 Liner 2007 Zweifel 1952   * Crotalus campbelli Guerreran Dusky Rattlesnake Bryson, Linkem, Dorcas, Lathrop, Jones, Alvarado-Diaz, Grunwald & Murphy 2014 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Flores-Guerrero & Sanchez-Gonzalez 2016 Heimes 2016 Lemos-Espinal, Smith, Pierce & Painter 2020 Luja & Grunwald 2015 Reyes-Velasco, Grunwald, Jones & Ahumada-Carrillo 2020 Woolrich-Pina, Ponce-Campos, Loc-Barragan, Ramirez-Silva, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2016   * Crotalus catalinensis Santa Catalina Rattlesnake Campbell & Lamar 2004 Flores-Villela 1993 Grismer 2002 Harris & Simmons 1977 Heimes 2016 Liner 1994 Liner 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Crotalus cerastes Sidewinder Campbell & Lamar 2004 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Flores-Villela 1993 Grismer 2002 Harris & Simmons 1977 Heimes 2016 Langebartel & Smith 1954 Lemos-Espinal, Smith & Rorabaugh 2019 Liner 1994 Liner 2007 Rorabaugh 2008 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus culminatus Northwestern Neotropical Rattlesnake Alvarado-Diaz, Suazo-Ortuno, Wilson & Medina-Aguilar 2013 Camarillo-R. & Smith (in Strimple & Strimple) 1992 Camarillo-Rangel 1983 Campbell & Lamar 2004 Davis & Smith 1953 Duellman 1965 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Heimes 2016 Lemos-Espinal & Smith 2020 Liner 1994 Liner 2007 Medina-Aguilar, Alvarado-Diaz & Suazo-Ortuno 2011 [as simus] Palacios-Aguilar & Flores-Villela 2018 Peralta-Fonseca & Garcia-Padilla 2015 Perez-Ramos, Riva & Uribe-Pena 2000 Sanchez-de la Vega, Mata-Silva, Molina-Garcia, Garcia-Mendez & Buenrostro-Silva 2012 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017   * Crotalus ehecatl Chiapas Rattlesnake Carbajal-Marquez, Cedeno-Vazquez, Martinez-Arce, Neri-Castro & Machkour-M'Rabet 2020 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021   * Crotalus enyo Baja California Rattlesnake Campbell & Lamar 2004 Etheridge 1961 Flores-Villela 1993 Grismer 2002 Grismer, Hollingsworth, Cryder & Wong 1997 Harris & Simmons 1977 Heimes 2016 Liner 1994 Liner 2007 Reynoso 1990 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus ericsmithi Southern Long-tailed Rattlesnake Campbell & Flores-Villela 2008 Heimes 2016 Palacios-Aguilar & Flores-Villela 2018 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus estebanensis San Esteban Island Black-tailed Rattlesnake Campbell & Lamar 2004 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Grismer 2002 Harris & Simmons 1977 Heimes 2016 Lemos-Espinal, Smith & Rorabaugh 2019 Liner 1994 Liner 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus exiguus Guerreran Pygmy Rattlesnake Campbell & Armstrong 1979 Campbell & Lamar 2004 Heimes 2016 Liner 1994 Liner 2007 Palacios-Aguilar & Flores-Villela 2018 Perez-Ramos, Riva & Uribe-Pena 2000   Crotalus helleri Southern Pacific Rattlesnake Campbell & Lamar 2004 Grismer 2002 [as viridis] Heimes 2016 Jones 1981 Liner 1994 Liner 2007 Ottley & Hunt 1981 Starrett 1993 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus intermedius Mexican Small-headed Rattlesnake Auth, Smith, Brown & Lintz 2000 Bryson & Garcia-Vazquez 2007 Campbell & Lamar 1989 Campbell & Lamar 2004 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Fernandez-Badillo, Manriquez-Moran, Castillo-Ceron & Goyenechea 2016 Flores-Villela 1993 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Heimes 2016 Hernandez-Jandete, Fernandez-Badillo, Ibarra-Bautista & Olvera-Olvera 2017 Hidalgo-Garcia, Fernandez-Badillo, Campo-Hernandez, Ocana-Falcon, Hernandez-Medina, Jimenez-Ortiz, Falfan Cortes & Morales-Capellan 2022 Ibarra-Bautista, Hernandez-Jandete, Arellano-Pinacho & Fernandez-Badillo 2017 Lemos-Espinal & Smith 2015 Liner 1994 Liner 2007 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 Palacios-Aguilar & Flores-Villela 2018 Perea-Perez, Peralta-Hernandez, Corona-Garduno & Garcia-Vazquez 2019 Perez-Higareda & Smith 1991 Perez-Ramos, Riva & Uribe-Pena 2000 Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Sanchez-Herrera & Lopez-Ortega 1987 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Valencia-Hernandez, Goyenechea & Castillo-Ceron 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017   * Crotalus lannomi Autlan Rattlesnake Campbell & Lamar 2004 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 Cruz-Saenz, Guerrero-Vazquez, Lazcano & Tellez-Lopez 2009 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Flores-Villela 1993 Heimes 2016 Lemos-Espinal, Smith, Pierce & Painter 2020 Liner 1994 Liner 2007 Reyes-Velasco, Grunwald, Jones & Ahumada-Carrillo 2020 Reyes-Velasco, Grunwald, Jones & Weatherman 2010 Tanner 1966 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Crotalus lepidus Common Rock Rattlesnake Anderson & Lidicker 1963 Bryson, Linkem, Dorcas, Lathrop, Jones, Alvarado-Diaz, Grunwald & Murphy 2014 Campbell & Lamar 2004 Castaneda-Gaytan, Garcia-de la Pena, Lazcano & Salas-Westphal 2005 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 Contreras Arquieta & Lazcano Villarreal 1995 Cruz-Elizalde, Ramirez-Bautista, Johnson & Moreno 2014 Cruz-Saenz, Guerrero-Vazquez, Lazcano & Tellez-Lopez 2009 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Dorcas 1992 Enderson, Devender & Bezy 2014 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Flores-Villela 1993 Gadsden, Estrada-Rodrigues & Leyva-Pacheco 2006 Hardy & McDiarmid 1969 Heimes 2016 Hernandez, Herr, Stevens, Cork, Medina-Nava, Vialpando, Warfel, Fields, Brodie & Graham 2019 Lara-Galvan, Martinez-Montoya, Sigala-Rodriguez, Esparza-Estrada, Rosas-Rosas, Avila-Herrera & Barbosa 2020 Lazcano, Contreras-Lozano, Gallardo-Valdez, Garcia del Pena & Castaneda 2009 Lazcano, Galvan & Kardon 2000 Lazcano, Garcia-Salas, Banda-Leal, Wilson, Favela-Lara, Solis-Baraja & Pacheco-Trevino 2020 Lazcano, Nevarez-de los Reyes, Garcia-Padilla, Johnson, Mata-Silva, DeSantis & Wilson 2019 Lemos-Espinal & Dixon 2013 Lemos-Espinal & Smith 2007 Lemos-Espinal & Smith 2016 Lemos-Espinal & Smith 2020 Lemos-Espinal, Chiszar & Smith 2000 Lemos-Espinal, Smith & Cruz 2016 Lemos-Espinal, Smith & Cruz 2018 Lemos-Espinal, Smith & Rorabaugh 2019 Lemos-Espinal, Smith & Woolrich-Pina 2018 Lemos-Espinal, Smith, Gadsden-Esparza, Valdez-Lares & Woolrich-Pina 2018 Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 Liner 1994 Liner 2007 Loc-Barragan, Sosa-Hernandez, Grunwald, Miramontes-Medina, Banuelos-Alamillo, Woolrich-Pina & Lazcano 2019 McCranie & Wilson 2001 Muniz-Martinez & Valdez-Lares 2012 Nevarez-de los Reyes, Lazcano, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Ponce-Campos, Romero-Contreras & Huerta-Ortega 2000 Rojo-Gutierrez, Jaimes-Rodriguez, Cruz-Saenz, Lopez-Fernandez, Chavez-Uribe & Lazcano 2018 Rorabaugh 2008 Rorabaugh, Turner, Devender, Hugo-Cabrera, Maynard, Devender, Villa, Hamilton, Hale, Aguilar-Morales, Blanco-Gutierrez, Wallace & Hedgcock 2019 Smith, Lemos-Espinal & Heimes 2005 Tanner 1985 Taylor 1949 Taylor 1952 Valdez-Lares & Gadsden-Esparza 2014 Valdez-Lares, Muniz-Martinez, Gadsden, Aguirre-Leon, Castaneda-Gaytan & Gonzalez-Trapaga 2013 Vazquez-Diaz & Quintero-Diaz 2005 Wilson & Johnson 2010 Wilson & McCranie 1979 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Ponce-Campos, Loc-Barragan, Ramirez-Silva, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2016 Zweifel 1954   * Crotalus lorenzoensis San Lorenzo Sur Island Red Diamond Rattlesnake Grismer 2002 Harris & Simmons 1977 Heimes 2016 Liner 1994 Liner 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus mictlantecuhtli Veracruz Rattlesnake Carbajal-Marquez, Cedeno-Vazquez, Martinez-Arce, Neri-Castro & Machkour-M'Rabet 2020 Kelly-Hernandez, Lara-Hernandez & Vasquez-Cruz 2020 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Vasquez-Cruz, Olivares-Blanco & Reynoso-Martinez 2021   * Crotalus mitchellii San Lucan Speckled Rattlesnake Campbell & Lamar 2004 Douglas, Douglas, Schuett, Porras & Thomason 2007 Etheridge 1961 Flores-Villela 1993 Grismer 2002 Harris & Simmons 1977 Heimes 2016 Liner 1994 Liner 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Crotalus molossus Western Black-tailed Rattlesnake Alvarado-Diaz, Suazo-Ortuno, Wilson & Medina-Aguilar 2013 Anderson & Greenbaum 2012 Anderson & Lidicker 1963 Auth, Smith, Brown & Lintz 2000 Burchfield, Beimler & Hairston 1982 Camarillo-R. & Smith (in Strimple & Strimple) 1992 Campbell & Lamar 2004 Canseco Marquez & Gutierrez Mayen 2006 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Castaneda-Gaytan, Garcia-de la Pena, Lazcano & Salas-Westphal 2005 Castro-Franco & Bustos-Zagal 1994 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 Chrapliwy & Fugler 1955 Contreras Arquieta & Lazcano Villarreal 1995 Cruz-Elizalde, Ramirez-Bautista, Hernandez-Salinas, Berriozabal-Islas & Wilson 2019 Cruz-Elizalde, Ramirez-Bautista, Johnson & Moreno 2014 Cruz-Elizalde, Ramirez-Bautista, Pineda-Lopez, Mata-Silva, DeSantis, Garcia-Padilla, Johnson, Rocha, Fucsko & Wilson 2022 Cruz-Saenz, Guerrero-Vazquez, Lazcano & Tellez-Lopez 2009 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Dixon & Lemos-Espinal 2010 Dixon, Ketchersid & Lieb 1972 Dixon, Sabbath & Worthington 1962 Duellman 1965 Enderson, Devender & Bezy 2014 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Farr, Lazcano & Lavin-Murcio 2013 Fernandez-Badillo, Aguillon-Gutierrez, Valdez-Renteria, Hernandez-Melo, Olvera-Olvera, Callejas-Jimenez, Hernandez-Ramos, Iturbe-Morgado, Torres-Angeles & Reano-Hernandez 2016 Fernandez-Badillo, Manriquez-Moran, Castillo-Ceron & Goyenechea 2016 Fernandez-Fernandez, Barrios-Quiroz, Sanchez-Aguilar & Moises-Minor 2003 Flores-Villela 1993 Fouquette & Rossman 1963 Fugler & Webb 1956 Gadsden, Estrada-Rodrigues & Leyva-Pacheco 2006 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Gehlbach & Collette 1957 Grant & Smith 1959 Hardy & McDiarmid 1969 Harris & Simmons 1977 Heimes 2016 Lara-Galvan, Martinez-Montoya, Sigala-Rodriguez, Esparza-Estrada, Rosas-Rosas, Avila-Herrera & Barbosa 2020 Lazcano, Banda, Castaneda, Garcia-de la Pena & Rojas 2006 Lazcano, Contreras-Balderas, Gonzalez-Rojas, Castaneda, Garcia-de la Pena & Solis-Rojas 2004 Lazcano, Contreras-Lozano, Gallardo-Valdez, Garcia del Pena & Castaneda 2009 Lazcano, Galvan & Kardon 2000 Lazcano, Garcia-Salas, Banda-Leal, Wilson, Favela-Lara, Solis-Baraja & Pacheco-Trevino 2020 Lazcano, Nevarez-de los Reyes, Garcia-Padilla, Johnson, Mata-Silva, DeSantis & Wilson 2019 Lazcano, Sanchez-Almazan, Garcia-de la Pena, Castaneda & Contreras-Balderas 2007 Lemos-Espinal & Dixon 2013 Lemos-Espinal & Smith 2007 Lemos-Espinal & Smith 2015 Lemos-Espinal & Smith 2016 Lemos-Espinal & Smith 2020 Lemos-Espinal, Smith & Cruz 2016 Lemos-Espinal, Smith & Cruz 2018 Lemos-Espinal, Smith & Rorabaugh 2019 Lemos-Espinal, Smith & Woolrich-Pina 2018 Lemos-Espinal, Smith, Gadsden-Esparza, Valdez-Lares & Woolrich-Pina 2018 Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 Leyte-Manrique, Berriozabal-Islas, Mata-Silva & Morales-Castorena 2018 Leyte-Manrique, Mata-Silva, Baez-Montes, Fucsko, DeSantis, Garcia-Padilla, Rocha, Johnson, Porras & Wilson 2022 Leyte-Manrique, Morales-Castorena & Escobedo-Morales 2016 Liner 1964 Liner 1994 Liner 2007 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 McCranie & Wilson 2001 Medina-Aguilar, Alvarado-Diaz & Suazo-Ortuno 2011 Mendoza-Quijano, Mejenes-Lopez, Reynoso-Rosales, Estrada-Hernandez & Rodriguez-Blanco 2001 Muniz-Martinez & Valdez-Lares 2012 Nevarez-de los Reyes, Lazcano, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Perez-Higareda & Smith 1991 Price 1980 Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Garcia-Vazquez, Leyte-Manrique & Canseco-Marquez 2009 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Rorabaugh 2008 Rorabaugh, Turner, Devender, Hugo-Cabrera, Maynard, Devender, Villa, Hamilton, Hale, Aguilar-Morales, Blanco-Gutierrez, Wallace & Hedgcock 2019 Sanchez-Herrera 1980 Smith & Lynch 1967 Smith, Lemos-Espinal & Heimes 2005 Spengler, Smith, Chiszar & Casas-Andreu 1982 Tanner 1985 Taylor 1949 Teran-Juarez, Garcia-Padilla, Leyto-Delgado & Garcia-Morales 2015 Teran-Juarez, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Uribe-Pena, Ramirez-Bautista & Casas-Andreu 1999 Valdez-Lares & Gadsden-Esparza 2014 Valdez-Lares, Muniz-Martinez, Gadsden, Aguirre-Leon, Castaneda-Gaytan & Gonzalez-Trapaga 2013 Valdez-Renteria, Fernandez-Badillo, Olvera-Olvera, Sanchez-Martinez & Goyenechea 2018 Valencia-Hernandez, Goyenechea & Castillo-Ceron 2007 Vazquez-Diaz & Quintero-Diaz 2005 Vite-Silva, Ramirez-Bautista & Hernandez-Salinas 2010 Webb & Baker 1962 Wilson & Johnson 2010 Wilson & McCranie 1979 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017 Woolrich-Pina, Ponce-Campos, Loc-Barragan, Ramirez-Silva, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2016   * Crotalus morulus Tamaulipan Rock Rattlesnake Bryson, Linkem, Dorcas, Lathrop, Jones, Alvarado-Diaz, Grunwald & Murphy 2014 Campbell & Lamar 2004 Contreras Arquieta & Lazcano Villarreal 1995 Heimes 2016 Lazcano, Banda, Castaneda, Garcia-de la Pena & Rojas 2006 Lazcano, Contreras-Balderas, Gonzalez-Rojas, Castaneda, Garcia-de la Pena & Solis-Rojas 2004 Lazcano, Galvan & Kardon 2000 Lazcano, Garcia-Salas, Banda-Leal, Wilson, Favela-Lara, Solis-Baraja & Pacheco-Trevino 2020 Lazcano, Nevarez-de los Reyes, Garcia-Padilla, Johnson, Mata-Silva, DeSantis & Wilson 2019 Lemos-Espinal & Smith 2007 Lemos-Espinal, Smith & Cruz 2018 Liner 1994 Liner 2007 Martin 1955 [as lepidus] Martin 1958 Nevarez-de los Reyes, Lazcano, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Teran-Juarez, Garcia-Padilla, Leyto-Delgado & Garcia-Morales 2015 [as lepidus] Teran-Juarez, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016   * Crotalus muertensis El Muerto Island Speckled Rattlesnake Campbell & Lamar 2004 Douglas, Douglas, Schuett, Porras & Thomason 2007 Grismer 2002 Harris & Simmons 1977 Heimes 2016 Liner 1994 Liner 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Crotalus ornatus Northeastern Black-tailed Rattlesnake Anderson & Greenbaum 2012 Garcia-Padilla, Herrera-Enriquez, Nevarez-de los Reyes, Lazcano, Mata-Silva, Johnson & Wilson 2016 Heimes 2016 Lazcano, Nevarez-de los Reyes, Garcia-Padilla, Johnson, Mata-Silva, DeSantis & Wilson 2019 Lemos-Espinal, Smith & Cruz 2018 Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 Nevarez-de los Reyes, Lazcano & Banda-Leal 2016 Nevarez-de los Reyes, Lazcano, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Wilson, Mata-Silva & Johnson 2013   * Crotalus polisi Isla Cabeza de Caballo Speckled Rattlesnake Dugan, Murray, Mills, Fischer, Lohr & Faust 2017 [as pyrrhus] Meik, Schaack, Flores-Villela & Streicher 2018   * Crotalus polystictus Mexican Lance-headed Rattlesnake Alvarado-Diaz, Suazo-Ortuno, Wilson & Medina-Aguilar 2013 Banuelos-Alamillo, Carbajal-Marquez & Olvera-Rivera 2016 Bryson, Rosa-Lozano & Lazcano 2003 Camarillo-R. & Smith (in Strimple & Strimple) 1992 Campbell & Lamar 2004 Castro-Franco & Bustos-Zagal 1994 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 Cruz-Elizalde, Ramirez-Bautista, Hernandez-Salinas, Berriozabal-Islas & Wilson 2019 Cruz-Elizalde, Ramirez-Bautista, Pineda-Lopez, Mata-Silva, DeSantis, Garcia-Padilla, Johnson, Rocha, Fucsko & Wilson 2022 Cruz-Perez, Hernandez-Camacho & Padilla-Garcia 2014 Cruz-Saenz, Guerrero-Vazquez, Lazcano & Tellez-Lopez 2009 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Duellman 1965 Flores-Villela 1993 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Heimes 2016 Lara-Galvan, Martinez-Montoya, Sigala-Rodriguez, Esparza-Estrada, Rosas-Rosas, Avila-Herrera & Barbosa 2020 Lemos-Espinal & Smith 2020 Leyte-Manrique, Mata-Silva, Baez-Montes, Fucsko, DeSantis, Garcia-Padilla, Rocha, Johnson, Porras & Wilson 2022 Liner 1994 Liner 2007 McCranie & Wilson 2001 McCranie 1976 Perez-Higareda & Smith 1991 Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Garcia-Vazquez, Leyte-Manrique & Canseco-Marquez 2009 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Santiago-Perez, Rosas-Espinoza, Dominguez-Laso & Rodriguez-Canseco 2017 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Vazquez-Diaz & Quintero-Diaz 2005 Wilson & Johnson 2010 Wilson & McCranie 1979 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017   Crotalus pricei Twin-spotted Rattlesnake Auth, Smith, Brown & Lintz 2000 Campbell & Lamar 1989 Campbell & Lamar 2004 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 Chrapliwy & Fugler 1955 Contreras Arquieta & Lazcano Villarreal 1995 Contreras-Lozano, Lazcano, Contreras-Balderas & Lavin-Murcio 2010 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Ernst 1992 Flores-Villela 1993 Heimes 2016 Lara-Galvan, Martinez-Montoya, Sigala-Rodriguez, Esparza-Estrada, Rosas-Rosas, Avila-Herrera & Barbosa 2020 Lazcano, Contreras-Balderas, Gonzalez-Rojas, Castaneda, Garcia-de la Pena & Solis-Rojas 2004 Lazcano, Galvan & Kardon 2000 Lazcano, Garcia-Salas, Banda-Leal, Wilson, Favela-Lara, Solis-Baraja & Pacheco-Trevino 2020 Lazcano, Nevarez-de los Reyes, Garcia-Padilla, Johnson, Mata-Silva, DeSantis & Wilson 2019 Lemos-Espinal & Dixon 2013 Lemos-Espinal & Smith 2007 Lemos-Espinal & Smith 2016 Lemos-Espinal, Smith & Cruz 2016 Lemos-Espinal, Smith & Cruz 2018 Lemos-Espinal, Smith & Rorabaugh 2019 Lemos-Espinal, Smith & Woolrich-Pina 2018 Lemos-Espinal, Smith, Gadsden-Esparza, Valdez-Lares & Woolrich-Pina 2018 Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 Liner 1994 Liner 2007 McCranie & Wilson 2001 Muniz-Martinez & Valdez-Lares 2012 Nevarez-de los Reyes, Lazcano, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Reyes-Velasco, Grunwald, Jones, Price & Fisher 2012 Rorabaugh 2008 Rorabaugh, Turner, Devender, Hugo-Cabrera, Maynard, Devender, Villa, Hamilton, Hale, Aguilar-Morales, Blanco-Gutierrez, Wallace & Hedgcock 2019 Smith, Lemos-Espinal & Heimes 2005 Tanner 1985 Teran-Juarez, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Valdez-Lares & Gadsden-Esparza 2014 Valdez-Lares, Muniz-Martinez, Gadsden, Aguirre-Leon, Castaneda-Gaytan & Gonzalez-Trapaga 2013 Vazquez-Diaz & Quintero-Diaz 2005 Webb & Baker 1962 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Ponce-Campos, Loc-Barragan, Ramirez-Silva, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2016   * Crotalus pusillus Tancitaran Dusky Rattlesnake Alvarado-Diaz, Suazo-Ortuno, Wilson & Medina-Aguilar 2013 Bryson, Linkem, Dorcas, Lathrop, Jones, Alvarado-Diaz, Grunwald & Murphy 2014 Campbell & Lamar 2004 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 Cruz-Saenz, Guerrero-Vazquez, Lazcano & Tellez-Lopez 2009 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Duellman 1965 Flores-Villela 1993 Heimes 2016 Lemos-Espinal, Smith, Pierce & Painter 2020 Liner 1994 Liner 2007 Reyes-Velasco, Grunwald, Jones & Ahumada-Carrillo 2020 Reyes-Velasco, Grunwald, Jones, Price & Fisher 2012 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Crotalus pyrrhus Southwestern Speckled Rattlesnake Campbell & Lamar 1989 [as mitchellii] Douglas, Douglas, Schuett, Porras & Thomason 2007 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 [as mitchellii] Harris & Simmons 1977 Heimes 2016 Lemos-Espinal, Smith & Rorabaugh 2019 Liner 1994 Liner 2007 Rorabaugh 2008 [as mitchellii]   * Crotalus ravus Central Plateau Pygmy Rattlesnake Camarillo-R. & Smith (in Strimple & Strimple) 1992 Campbell & Armstrong 1979 Campbell & Lamar 2004 Campos-Rodriguez & Mendoza-Quijano 2004 Canseco Marquez & Gutierrez Mayen 2006 Castro-Franco & Bustos-Zagal 1994 Davis & Smith 1953 Fernandez-Badillo, Manriquez-Moran, Castillo-Ceron & Goyenechea 2016 Flores-Villela 1993 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Heimes 2016 Lazcano-Juarez, Torres-Angeles, Aranda-Trejo, Dominguez-Vega, Morales-Capellan, Gonzalez-Bonilla, Canales-Perez, Maciel-Mata, Borja-Jimenez & Fernandez-Badillo 2022 Lemos-Espinal & Smith 2015 Lemos-Espinal & Smith 2020 Liner 1994 Liner 2007 Perez-Higareda & Smith 1991 Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Garcia-Vazquez, Leyte-Manrique & Canseco-Marquez 2009 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Uribe-Pena, Ramirez-Bautista & Casas-Andreu 1999 Valencia-Hernandez, Goyenechea & Castillo-Ceron 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017   Crotalus ruber Red Diamond Rattlesnake Arnaud, Carbajal-Marquez, Rodriguez-Canseco & Ferreyra 2014 Campbell & Lamar 2004 Flores-Villela 1993 Grismer 2002 Harris & Simmons 1977 Heimes 2016 Liner 1994 Liner 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Crotalus scutulatus Mojave Rattlesnake Auth, Smith, Brown & Lintz 2000 Banta 1962 Campbell & Lamar 2004 Castaneda-Gaytan, Garcia-de la Pena, Lazcano & Salas-Westphal 2005 Chavez-Avila, Casas-Andreu, Garcia-Aguayo, Cifuentes-Lemus & Cupul-Magana 2015 Contreras Arquieta & Lazcano Villarreal 1995 Contreras-Lozano, Lazcano, Contreras-Balderas & Lavin-Murcio 2010 Cruz-Elizalde, Ramirez-Bautista, Hernandez-Salinas, Berriozabal-Islas & Wilson 2019 Cruz-Elizalde, Ramirez-Bautista, Pineda-Lopez, Mata-Silva, DeSantis, Garcia-Padilla, Johnson, Rocha, Fucsko & Wilson 2022 Cruz-Saenz, Guerrero-Vazquez, Lazcano & Tellez-Lopez 2009 Cruz-Saenz, Munoz-Nolasco, Mata-Silva, Johnson, Garcia-Padilla & Wilson 2017 Dixon & Lemos-Espinal 2010 Dixon, Ketchersid & Lieb 1972 Dixon, Sabbath & Worthington 1962 Dominguez-Laso, Padilla-Garcia, Perez-Ramos & Quijada-Mascarenas 2007 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Farr & Teran-Juarez 2020 Fernandez-Badillo, Manriquez-Moran, Castillo-Ceron & Goyenechea 2016 Fernandez-Badillo, Morales-Capellan, Contreras-Patino & Carreno-Cervantes 2016 Flores-Villela 1993 Gadsden, Estrada-Rodrigues & Leyva-Pacheco 2006 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Heimes 2016 Hernandez, Herr, Stevens, Cork, Medina-Nava, Vialpando, Warfel, Fields, Brodie & Graham 2019 Lara-Galvan, Martinez-Montoya, Sigala-Rodriguez, Esparza-Estrada, Rosas-Rosas, Avila-Herrera & Barbosa 2020 Lazcano, Galvan & Kardon 2000 Lazcano, Garcia-Salas, Banda-Leal, Wilson, Favela-Lara, Solis-Baraja & Pacheco-Trevino 2020 Lazcano, Nevarez-de los Reyes, Garcia-Padilla, Johnson, Mata-Silva, DeSantis & Wilson 2019 Lazcano, Sanchez-Almazan, Garcia-de la Pena, Castaneda & Contreras-Balderas 2007 Lemos-Espinal & Dixon 2013 Lemos-Espinal & Smith 2007 Lemos-Espinal & Smith 2015 Lemos-Espinal & Smith 2016 Lemos-Espinal & Smith 2020 Lemos-Espinal, Smith & Cruz 2016 Lemos-Espinal, Smith & Cruz 2018 Lemos-Espinal, Smith & Rorabaugh 2019 Lemos-Espinal, Smith & Woolrich-Pina 2018 Lemos-Espinal, Smith, Gadsden-Esparza, Valdez-Lares & Woolrich-Pina 2018 Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 Leyte-Manrique, Mata-Silva, Baez-Montes, Fucsko, DeSantis, Garcia-Padilla, Rocha, Johnson, Porras & Wilson 2022 Liner 1964 Liner 1994 Liner 2007 Liner, Johnson & Chaney 1976 Matias-Ferrer & Murillo 2004 McCranie & Wilson 2001 Muniz-Martinez & Valdez-Lares 2012 Nevarez-de los Reyes, Lazcano, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Perez-Higareda & Smith 1991 Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Reese 1971 Rorabaugh 2008 Sanchez-Herrera & Lopez-Ortega 1987 Smith, Lemos-Espinal & Heimes 2005 Tanner 1985 Taylor 1949 Teran-Juarez, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Torre-Loranca, Martinez-Fuentes, Canseco-Marquez & Garcia-Vazquez 2020 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Valdez-Lares & Gadsden-Esparza 2014 Valdez-Lares, Muniz-Martinez, Gadsden, Aguirre-Leon, Castaneda-Gaytan & Gonzalez-Trapaga 2013 Valencia-Hernandez, Goyenechea & Castillo-Ceron 2007 Vazquez-Diaz & Quintero-Diaz 2005 Watson, Spencer, Schield, Butler, Smith, Flores-Villela, Campbell, Mackessy, Castoe & Meik 2019 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017   Crotalus simus Central American Rattlesnake Alvarez del Toro 1982 [as durissus] Campbell & Lamar 2004 Garcia-Padilla & Mata-Silva 2014 Heimes 2016 Hernandez-Ordonez, Arroyo-Rodriguez, Gonzalez-Hernandez, Russildi, Luna-Reyes, Martinez-Ramos & Reynoso 2015 Johnson 1990 [as durissus] Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Klauber 1972 [as d. durissus] Lee 1996 [as durissus] Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 McCranie 1993 [as durissus] Percino-Daniel, Cruz-Ocana, Pozo-Ventura & Velazquez-Velazquez 2013 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus stejnegeri Northern Long-tailed Rattlesnake Campbell & Lamar 2004 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Flores-Villela 1993 Hardy & McDiarmid 1969 Heiden & Flores-Villela 2013 Heimes 2016 Lemos-Espinal & Smith 2020 Lemos-Espinal, Smith, Gadsden-Esparza, Valdez-Lares & Woolrich-Pina 2018 Liner 1994 Liner 2007 McDiarmid, Copp & Breedlove 1976 Muniz-Martinez & Valdez-Lares 2012 Valdez-Lares, Muniz-Martinez, Gadsden, Aguirre-Leon, Castaneda-Gaytan & Gonzalez-Trapaga 2013 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus tancitarensis Tancitaro Rattlesnake Alvarado-Diaz & Campbell 2004 Alvarado-Diaz, Suazo-Ortuno, Wilson & Medina-Aguilar 2013 Heimes 2016 Liner 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus thalassoporus Isla Piojo Speckled Rattlesnake Heimes 2016 [as pyrrhus] Meik, Schaack, Flores-Villela & Streicher 2018   Crotalus tigris Tiger Rattlesnake Campbell & Lamar 2004 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Flores-Villela 1993 Grismer 2002 Heimes 2016 Lemos-Espinal, Smith & Rorabaugh 2019 Liner 1994 Liner 2007 Rorabaugh 2008 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Zweifel & Norris 1955   * Crotalus tlaloci Jaliscan Dusky Rattlesnake Bryson, Linkem, Dorcas, Lathrop, Jones, Alvarado-Diaz, Grunwald & Murphy 2014 Flores-Villela & Hernandez-Garcia 1989 [as C. t. triseriatus] Heimes 2016 Lemos-Espinal & Smith 2020 Palacios-Aguilar & Flores-Villela 2018 Perez-Ramos, Riva & Uribe-Pena 2000 [as C. t. triseriatus]   * Crotalus tortugensis Tortuga Island Diamondback Rattlesnake Campbell & Lamar 2004 Flores-Villela 1993 Grismer 2002 Harris & Simmons 1977 Liner 2007   * Crotalus totonacus Totonacan Rattlesnake Anderson & Greenbaum 2012 Auth, Smith, Brown & Lintz 2000 Campbell & Lamar 2004 Contreras Arquieta & Lazcano Villarreal 1995 [as durissus] Cruz-Elizalde, Ramirez-Bautista, Hernandez-Salinas, Berriozabal-Islas & Wilson 2019 Cruz-Elizalde, Ramirez-Bautista, Pineda-Lopez, Mata-Silva, DeSantis, Garcia-Padilla, Johnson, Rocha, Fucsko & Wilson 2022 Dixon & Lemos-Espinal 2010 Farr, Lazcano & Lavin-Murcio 2013 Farr, Reyes, Banda-Leal & Lazcano 2015 Heimes 2016 Lazcano, Contreras-Lozano, Gallardo-Valdez, Garcia del Pena & Castaneda 2009 Lazcano, Farr, Lavin-Murcio, Contreras-Lozano, Kardon, Narvaez-Torres & Chaves-Cisneros 2009 Lazcano, Galvan & Kardon 2000 Lemos-Espinal & Dixon 2013 Lemos-Espinal & Smith 2015 Lemos-Espinal, Smith & Cruz 2016 Lemos-Espinal, Smith & Cruz 2018 Lemos-Espinal, Smith & Woolrich-Pina 2018 Liner 1994 Liner 2007 Martin 1955 [as durissus] Martin 1958 Nevarez-de los Reyes, Lazcano, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Perez-Higareda & Smith 1991 [as d. durissus (part)] Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Ramos-Frias, Fernandez-Badillo, Aguilar-Lopez & Escudero 2015 Santillan-Moreno, Quintero-Diaz & Carbajal-Marquez 2018 Taylor 1950 Teran-Juarez, Garcia-Padilla, Leyto-Delgado & Garcia-Morales 2015 Teran-Juarez, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Valencia-Hernandez, Goyenechea & Castillo-Ceron 2007 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus transversus Cross-banded Mountain Rattlesnake Camarillo-R. & Smith (in Strimple & Strimple) 1992 Campbell & Lamar 2004 Castro-Franco & Bustos-Zagal 1994 Centenero-Alcala, Garcia-Vazquez, Mendoza-Hernandez, Zamora-Abrego & Jimenez-Arcos 2010 Davis & Smith 1953 Flores-Villela 1993 Garcia-Vazquez, Salano-Zavaleta & Nieto-Montes de Oca 2008 Golay, Smith, Broadley, Dixon, McCarthy, Rage, Schatti & Toriba 1993 Heimes & Aguilar-Cortes 2004 Heimes 2016 Lemos-Espinal & Smith 2020 Liner 2007 Ramirez-Bautista, Hernandez-Salinas, Garcia-Vazquez, Leyte-Manrique & Canseco-Marquez 2009 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Crotalus triseriatus Mexican Dusky Rattlesnake Alvarado-Diaz, Suazo-Ortuno, Wilson & Medina-Aguilar 2013 Auth, Smith, Brown & Lintz 2000 Bryson 2006 Bryson, Linkem, Dorcas, Lathrop, Jones, Alvarado-Diaz, Grunwald & Murphy 2014 Camarillo-R. & Smith (in Strimple & Strimple) 1992 Campbell & Lamar 2004 Castro-Franco & Bustos-Zagal 1994 Cruz-Elizalde & Ramirez-Bautista 2012 Cruz-Elizalde, Ramirez-Bautista, Hernandez-Salinas, Berriozabal-Islas & Wilson 2019 Cruz-Elizalde, Ramirez-Bautista, Pineda-Lopez, Mata-Silva, DeSantis, Garcia-Padilla, Johnson, Rocha, Fucsko & Wilson 2022 Davis & Smith 1953 Dixon, Ketchersid & Lieb 1972 Dorcas 1992 Duellman 1965 Fernandez-Badillo, Jimenez-Villegas, Gonzalez-Bonilla, Morales-Capellan, Ramirez-Cruz & Hernandez-Silva 2017 Fernandez-Badillo, Tepango-Benitez, Gonzalez-Bonilla, Jimenez-Villegas, Morales-Capellan, Ramirez-Cruz & Hernandez-Silva 2018 Flores-Villela 1993 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Heimes 2016 Lemos-Espinal & Smith 2015 Lemos-Espinal & Smith 2020 Liner 1994 Liner 2007 Medina-Aguilar, Alvarado-Diaz & Suazo-Ortuno 2011 Montiel-Canales, Lara-Tufino & Mayer-Goyenechea 2017 Perez-Higareda & Smith 1991 Ramirez-Bautista, Godinez-Cano & Camarillo 1991 Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Garcia-Vazquez, Leyte-Manrique & Canseco-Marquez 2009 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Uribe-Pena, Ramirez-Bautista & Casas-Andreu 1999 Valencia-Hernandez, Goyenechea & Castillo-Ceron 2007 Vite-Silva, Ramirez-Bautista & Hernandez-Salinas 2010 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017   Crotalus tzabcan Yucatan Rattlesnake Auth, Smith, Brown & Lintz 2000 Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022 Campbell & Lamar 2004 Duellman 1965 Dundee, White & Rico-Gray 1986 Gonzalez-Sanchez, Johnson, Garcia-Padilla, Mata-Silva, DeSantis & Wilson 2017 Heimes 2016 Klauber 1972 Koehler, Cedeno-Vazquez & Beutelspacher-Garcia 2016 Lee 1996 Liner 1994 Liner 2007 Luja, Ramirez-Bautista & Sanvicente 2005 Nahuat-Cervera, Hernandez-Betancourt & Diaz-Gamboa 2020 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Crotalus viridis Prairie Rattlesnake Campbell & Lamar 2004 Enderson 2010 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Flores-Villela 1993 Heimes 2016 Lazcano, Nevarez-de los Reyes, Garcia-Padilla, Johnson, Mata-Silva, DeSantis & Wilson 2019 Lemos-Espinal & Smith 2007 Lemos-Espinal & Smith 2016 Lemos-Espinal, Chiszar & Smith 1994 Lemos-Espinal, Smith & Rorabaugh 2019 Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 Liner 1994 Liner 2007 Rorabaugh 2008 Tanner 1985 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Crotalus willardi Ridge-nosed Rattlesnake Campbell & Lamar 2004 Enderson, Devender & Bezy 2014 Enderson, Quijada-Mascarenas, Turner, Rosen & Bezy 2009 Flores-Villela 1993 Heimes 2016 Lara-Galvan, Martinez-Montoya, Sigala-Rodriguez, Esparza-Estrada, Rosas-Rosas, Avila-Herrera & Barbosa 2020 Lemos-Espinal & Smith 2007 Lemos-Espinal, Smith & Rorabaugh 2019 Lemos-Espinal, Smith, Gadsden-Esparza, Valdez-Lares & Woolrich-Pina 2018 Lemos-Espinal, Smith, Woolrich-Pina & Cruz 2017 Liner 1994 Liner 2007 Muniz-Martinez & Valdez-Lares 2012 Reyes-Velasco, Grunwald, Jones & Weatherman 2008 Rorabaugh 2008 Rorabaugh, Turner, Devender, Hugo-Cabrera, Maynard, Devender, Villa, Hamilton, Hale, Aguilar-Morales, Blanco-Gutierrez, Wallace & Hedgcock 2019 Smith, Lemos-Espinal & Heimes 2005 Tanner 1985 Valdez-Lares & Gadsden-Esparza 2014 Valdez-Lares, Muniz-Martinez, Gadsden, Aguirre-Leon, Castaneda-Gaytan & Gonzalez-Trapaga 2013 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Genus Metlapilcoatlus (Northern Jumping Pitvipers)   * Metlapilcoatlus borealis Queretaro Jumping Pitviper Campbell & Lamar 2004 [as nummifer] Cruz-Elizalde, Ramirez-Bautista, Hernandez-Salinas, Berriozabal-Islas & Wilson 2019 [as nummifer] Cruz-Elizalde, Ramirez-Bautista, Pineda-Lopez, Mata-Silva, DeSantis, Garcia-Padilla, Johnson, Rocha, Fucsko & Wilson 2022 Heimes 2016 [as nummifer] Lemos-Espinal & Dixon 2013 [as nummifer] Lemos-Espinal & Smith 2015 [as nummifer] Lemos-Espinal, Smith & Woolrich-Pina 2018 [as nummifer] Lopez-Gonzalez, Aceves-Lara & Jimenez-Maldonado 2006 [as nummifer] Ortiz-Ortiz, Morales-Capellan & Fernandez-Badillo 2021 [as M. nummifer] Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 [as nummifer] Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 [as nummifer] Taylor 1949 [as nummifer] Tepos-Ramirez, Flores-Villela, Velasco, Pedraza Lara, Garcia Rubio & Jadin 2021 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021   Metlapilcoatlus mexicanus Central American Jumping Pitviper Alvarez del Toro 1982 Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022 Campbell & Lamar 2004 Heimes 2016 Hernandez-Ordonez, Arroyo-Rodriguez, Gonzalez-Hernandez, Russildi, Luna-Reyes, Martinez-Ramos & Reynoso 2015 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 McCoy & Horn 1962 Percino-Daniel, Cruz-Ocana, Pozo-Ventura & Velazquez-Velazquez 2013 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Metlapilcoatlus nummifer Mexican Jumping Pitviper Campbell & Lamar 2004 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Heimes 2016 Liner 1994 Liner 2007 Luz, Lemos-Espinal & Smith 2016 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 Peralta-Hernandez, Peralta-Hernandez, Parra-Olea, Lopez-Velazquez & Garcia-Castillo 2020 Perez-Higareda & Smith 1991 Perez-Higareda 1978 Rodriguez-Perez & Garcia-Padilla 2015 Tepos-Ramirez, Flores-Villela, Velasco, Pedraza Lara, Garcia Rubio & Jadin 2021 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Vasquez-Cruz & Canseco-Marquez 2020 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017   Metlapilcoatlus occiduus Guatemalan Jumping Pitviper Campbell & Lamar 2004 Garcia-Padilla 2015 Heimes 2016 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Metlapilcoatlus olmec Tuxtlan Jumping Pitviper Campbell & Lamar 2004 Flores-Villela 1993 Heimes 2016 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 Perez-Higareda & Smith 1991 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Genus Mixcoatlus (Mexican Montane Pitvipers)   * Mixcoatlus barbouri Guerreran Montane Pitviper Campbell & Lamar 2004 Flores-Villela 1993 Grunwald, Jones, Franz-Chavez & Ahumada-Carrillo 2015 Grunwald, Perez-Rivera, Ahumada-Carrillo, Franz-Chavez & Forest 2016 Heimes 2016 Jadin, Smith & Campbell 2011 Liner 1994 Liner 2007 Palacios-Aguilar & Flores-Villela 2018 Perez-Ramos, Riva & Uribe-Pena 2000 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Mixcoatlus browni Omilteme Montane Pitviper Grunwald, Jones, Franz-Chavez & Ahumada-Carrillo 2015 Heimes 2016 Jadin, Smith & Campbell 2011 Palacios-Aguilar & Flores-Villela 2018 Shreve 1938 Wilson, Mata-Silva & Johnson 2013   * Mixcoatlus melanurus Black-tailed Montane Pitviper Campbell & Lamar 2004 Canseco Marquez & Gutierrez Mayen 2006 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Flores-Villela 1993 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Grunwald, Jones, Franz-Chavez & Ahumada-Carrillo 2015 Heimes 2016 Jadin, Smith & Campbell 2011 Liner 1994 Liner 2007 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017 Genus Ophryacus (Mexican Horned Pitvipers)   * Ophryacus smaragdinus Emerald Horned Pitviper Campbell & Lamar 2004 [as undulatus] Castillo Juarez, Contreras Calvario, Taval Velazquez & Sanchez Eugenio 2020 Cruz-Elizalde & Ramirez-Bautista 2012 [as undulatus] Grunwald, Jones, Franz-Chavez & Ahumada-Carrillo 2015 Heimes 2016 [as undulatus] Jadin, Smith & Campbell 2011 [as undulatus] Lemos-Espinal & Smith 2015 [as undulatus] Martinez-Vaca Leon, Bello-Sanchez & Morales-Mavil 2016 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Peralta-Hernandez, Valdenegro-Brito, Cervantes-Burgos, Sanchez-Garcia & Garcia-Vazquez 2021 Ramirez-Bautista & Cruz-Elizalde 2013 [as undulatus] Ramirez-Bautista, Hernandez-Salinas, Cruz-Elizalde, Berriozabal-Islas, Moreno-Lara, DeSantis, Johnson, Garcia-Padilla, Mata-Silva & Wilson 2020 Ramirez-Bautista, Hernandez-Salinas, Mendoza-Quijano, Cruz-Elizalde, Stephenson, Vite-Silva & Leyte-Manrique 2010 [as undulatus] Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017   * Ophryacus sphenophrys Broad-horned Pitviper Grunwald, Jones, Franz-Chavez & Ahumada-Carrillo 2015 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021   * Ophryacus undulatus Slender-horned Pitviper Campbell & Lamar 2004 Canseco-Marquez, Gutierrez-Mayen & Salazar-Arenas 2000 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Christoph I. Grunwald (pers. comm., January 2016) Flores-Villela 1993 Garcia-Padilla & Mata-Silva 2014 Garcia-Vazquez, Canseco-Marquez, Gutierrez-Mayen & Trujano-Ortega 2009 Grunwald, Jones, Franz-Chavez & Ahumada-Carrillo 2015 Grunwald, Perez-Rivera, Ahumada-Carrillo, Franz-Chavez & Forest 2016 Heimes 2016 Jadin, Smith & Campbell 2011 Liner 1994 Liner 2007 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 Palacios-Aguilar & Flores-Villela 2018 Perez-Higareda & Smith 1991 Perez-Ramos, Riva & Uribe-Pena 2000 Torres-Hernandez, Ramirez-Bautista, Cruz-Elizalde, Hernandez-Salinas, Berriozabal-Islas, DeSantis, Johnson, Rocha, Garcia-Padilla, Mata-Silva, Fucsko & Wilson 2021 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Woolrich-Pina, Garcia-Padilla, DeSantis, Johnson, Mata-Silva & Wilson 2017 Genus Porthidium (Hognosed Pitvipers)   * Porthidium dunni Tehuantepec Hognosed Pitviper Campbell & Lamar 2004 Casas-Andreu, Mendez-de la Cruz & Aguilar-Miguel 2004 Casas-Andreu, Mendez-de la Cruz & Camarillo 1996 Chrapliwy & Fugler 1955 Flores-Villela 1993 Fouquette & Rossman 1963 Garcia-Padilla & Mata-Silva 2014 Heimes 2016 Johnson 1973 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Martin-Regalado, Gomez-Ugalde & Cisneros-Palacios 2011 Mata-Silva, Garcia-Padilla, Rocha, DeSantis, Johnson, Ramirez-Bautista & Wilson 2021 Mata-Silva, Johnson, Wilson & Garcia-Padilla 2015 McCoy & Horn 1962 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   * Porthidium hespere Colima Hognosed Pitviper Alvarado-Diaz, Huacuz-Elias & Suazo-Ortuno 1997 Alvarado-Diaz, Suazo-Ortuno, Wilson & Medina-Aguilar 2013 Campbell & Lamar 2004 Campbell 1976 Flores-Villela 1993 Heimes 2016 Lemos-Espinal, Smith, Pierce & Painter 2020 Liner 1994 Liner 2007 Mendoza-Cardenas, Cancino-Murillo, Quijada-Mascarenas & Bryson 2007 Palacios-Aguilar & Flores-Villela 2018 Palacios-Aguilar, Santos-Bibiano & Beltran-Sanchez 2016 Reyes-Velasco, Grunwald, Jones & Ahumada-Carrillo 2020 Sanchez-Almaguer, Rivera-Corona & Reyes-Valasco 2021 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Porthidium nasutum Rainforest Hognosed Pitviper Alvarez del Toro 1982 Barragan-Vazquez, Rios-Rodas, Fucsko, Porras, Mata-Silva, Rocha, DeSantis, Garcia-Padilla, Johnson & Wilson 2022 Campbell & Lamar 2004 Flores-Villela 1993 Heimes 2016 Hernandez-Ordonez, Arroyo-Rodriguez, Gonzalez-Hernandez, Russildi, Luna-Reyes, Martinez-Ramos & Reynoso 2015 Johnson, Mata-Silva, Garcia-Padilla & Wilson 2015 Lee 1996 Liner 1994 Liner 2007 Luna-Reyes & Suarez-Velazquez 2008 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013   Porthidium ophryomegas Slender Hognosed Pitviper Grunwald, Morales-Flores, Franz-Chavez, Hermosillo-Lopez & Jones 2016   * Porthidium yucatanicum Yucatan Hognosed Pitviper Calderon-Mandujano, Cedeno-Vazquez & Pozo 2003 Campbell & Lamar 2004 Duellman 1965 Dundee, White & Rico-Gray 1986 Flores-Villela 1993 Gonzalez-Sanchez, Johnson, Garcia-Padilla, Mata-Silva, DeSantis & Wilson 2017 Heimes 2016 Lee 1996 Liner 1994 Liner 2007 Ortiz Medina, Cabrera-Cen, Nahuat-Cervera & Chable-Santos 2020 Wilson & Johnson 2010 Wilson, Mata-Silva & Johnson 2013 Genus Sistrurus (Pygmy Rattlesnakes)   Sistrurus tergeminus Western Massasauga Campbell & Lamar 2004 [as catenatus] Contreras Arquieta & Lazcano Villarreal 1995 [as catenatus ssp.] Ernst 1992 Flores-Villela 1993 [as catenatus] Golay, Smith, Broadley, Dixon, McCarthy, Rage, Schatti & Toriba 1993 Heimes 2016 Lazcano, Galvan & Kardon 2000 Lazcano, Nevarez-de los Reyes, Garcia-Padilla, Johnson, Mata-Silva, DeSantis & Wilson 2019 Lemos-Espinal & Smith 2007 Lemos-Espinal & Smith 2016 [as catenatus] Lemos-Espinal, Smith & Cruz 2016 [as catenatus] Lemos-Espinal, Smith & Cruz 2018 [as S. catenatus] Liner 1994 Liner 2007 McCoy & Minckley 1969 Nevarez-de los Reyes, Lazcano, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 [as catenatus] Teran-Juarez, Garcia-Padilla, Mata-Silva, Johnson & Wilson 2016 [as catenatus] Wilson & Johnson 2010 [as catenatus] Wilson, Mata-Silva & Johnson 2013 [as catenatus]