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Xenodon merremii (WAGLER, 1824)

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Wagler's Snake
Portuguese: Achatadeira, Boca-de-Caçapa, Boca-de-Capanga, Boipeba, Boipeva, Boipeva-Comum, Boipeva-do-Campo, Boipeva-Grande, Cabeça-de-Patrona, Capitão-do-Campo, Capitão-do-Mato, Cobra-Chata, Corre-Campo, Cotiara, Cururuboia, Esparradeira, Falsa-Jararaca, Focinho-de-Cachorro, Goipeba, Goipeva, Jararaca-Malha-de-Cascavel, Jaracambeva, Jaracuçu, Jaracuçu-Capitão, Jaracuçu-de-Tapiti, Jaracuçu-do-Brejo, Jaracuçu-Dourado, Jaracuçu-Não-Venenoso, Jaracuçu-Tapete, Jararaca, Jararaca-Amarela, Jararacambeva, Jararacuçu-Bolacha, Jararacuçu-Tapiti, Jericá, Jeriquá, Jurucoá, Malha-de-Sapo, Mata-Boi, Pepeua, Pepeva, Surucucu-Cascuda, Urutu, Urutu-Amarelo, Urutu-Falsa, Urutu-Preto, Urutu-Tábua, Urutu-Tapete 
SynonymOphis Merremii WAGLER 1824: 47
Xenodon merremi — FITZINGER 1826
Xenodon irregularis GÜNTHER 1863: 354
Xenodon merremi — BOULENGER 1894 (2): 150
Trigonocephalus flavescens BACQUÉ 1906
Trigonocephalus alternatus binocularius BACQUÉ 1906
Ophis merremii — SERIÉ 1936
Xenodon merremii — PETERS & OREJAS-MIRANDA 1970
Waglerophis merremii — ROMANO & HOGE 1972: 209
Xenodon merremi — SCOTT & LOVETT 1975
Xenodon merremii — GASC & RODRIGUES 1980
Waglerophis merremi — FREIBERG 1982: 159
Waglerophis merremi — CEI 1993
Waglerophis merremi — LEYNAUD & BUCHER 1999: 36
Xenodon merremii — BÉRNILS et al. 2001
Waglerophis merremii — SCROCCHI et al. 2006: 148
Waglerophis merremii — SAWAYA et al. 2008
Xenodon merremi — WALLACH et al. 2014: 785
Xenodon merremii — COSTA & BÉRNILS 2015
Xenodon merremii — NOGUEIRA et al. 2019 
DistributionGuyana, Suriname, French Guiana, Brazil (Rio Grande do Sul, Rondonia [HR 30: 56], Pará, Goias, Bahia, Mato Grosso, S Ceará, Rio de Janeiro, Piauí, Paraíba, Pernambuco), Venezuela (KORNACKER 1999), Paraguay, N Argentina (Jujuy, Salta, Formosa, Chaco, Corrientes, Misiones, Catamarca, Tucumán, Santiago del Estero, La Rioja, San , SergipeJuan, San Luis, Córdoba, Santa Fe, Entre Rios, Buenos Aires), Bolivia (Beni), Uruguay

Type locality: “Habitat ad urbem Bahiae” [Brazil, city of Salvador (13°00'S, 38°30'W)] according to the original description and Vanzolini (1981).  
Reproductionoviparous 
TypesHolotype: lost, was ZSM, uncatalogued specimen(s) (lost fide Franzen & Glaw 2007), collected by Spix and Martius expedition to Brazil, 1817-1820. 
DiagnosisAdditional details, e.g. a detailed description or comparisons (2906 characters), are available for collaborators and contributors. Please contact us for details. 
CommentSynonymy after CEI 1993.

Type species: Ophis Merremii WAGLER 1824 is the type species of the genus Waglerophis ROMANO & HOGE 1972. However, Waglerophis was synonymized with Xenodon by ZAHER et al. 2009. 
EtymologyNamed after Blasius Merrem (1761-1824), German zoologist, and Johann Georg Wagler (1800-1832), German physician and zoologist. 
References
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