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Dipsas pavonina SCHLEGEL, 1837

IUCN Red List - Dipsas pavonina - Least Concern, LC
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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Northern Snail-eater
Portuguese: Cobra-Cipó, Dorminhoca, Papa-Lesma 
SynonymDipsas pavonina SCHLEGEL 1837: 280
Leptognathus pavoninus — DUMÉRIL, BIBRON & DUMÉRIL 1854: 474
Dipsas pavonina — PETERS 1960: 61
Dipsas pavonina — PETERS & OREJAS-MIRANDA 1970: 88
Dipsas pavonina — GASC & RODRIGUES 1980
Dipsas pavonina — KORNACKER 1999: 79
Dipsas pavonina — WALLACH et al. 2014: 233
Dipsas pavonina — NOGUEIRA et al. 2019 
DistributionGuyana, Suriname, French Guiana, Venezuela, Brazil (Amazonas, Para, Roraima), Colombia, Bolivia, Ecuador, Peru

Type locality: “Guyanas”.  
Reproductionoviparous 
TypesSyntypes: MNHN-RA 0435 (1), four syntypes in RMNH (Netherlands), cited as “Musée des Pays-Bas” 
DiagnosisDiagnosis: Dipsas pavonina may be distinguished from all congeners by the following combination of characters: (1) dorsals 13 without reduction; (2) postoculars excluding temporals from orbit; (3) one pair of infralabials in contact behind mental; (4) infralabials broadly contacting second and third pairs of chinshields; sublabials separating infralabials from preventrals and ventrals; (5) loreal square to much higher than long, entering orbit; (6) preocular present above loreal, excluding prefrontal from orbit; (7) dorsal surface of head black with cream prefrontal band; (8) supralabials cream with brownish black subocular band extending onto ventral surface of head; (9) nuchal collar cream; first blotch not reaching rictus and separated from parietals by about 5 vertebrals; (10) dorsal body light pink to tan with long black bands edged narrowly in cream; bands becoming saddles on posterior body; (11) dorsal bands complete ventrally on anterior body only; (12) interspaces usually immaculate, occasionally with small dark brown spots; accessory blotches absent; (13) venter cream anteriorly grading to same color as interspaces; few small brown spots edged in cream present, generally not forming pattern of lines; (14) ventrals 203–211 in males, 190–200 in females; (15) subcaudals 119–131 in males and 101–122 in females; (16) maxillary teeth 18–22 (HARVEY & EMBERT 2008: 78). 
CommentHabitat: fully arboreal (Harrington et al. 2018). 
EtymologyNamed after Latin pāvōnīna (inflection of pāvōnīnus), from pāvō (“peacock”), in reference to species' resemblence in coloring of a peacock feather. 
References
  • Almendariz, A. 1991. Anfibios y Reptiles [del Ecuador]. Rev. Politecnica. XVI (3): 89-162.
  • BERNARDE, P.S., ALBUQUERQUE, S., BARROS, T.O. & TURCI, L.C.B. 2012. Serpentes do Estado de Rondônia, Brasil. Biota Neotropica 12 (3): 1-29 - get paper here
  • Claessen, H. 2003. Slangen van de Guyana’s. Deel V. Lacerta 61 (4): 123-133 - get paper here
  • Cole, Charles J.; Carol R. Townsend, Robert P. Reynolds, Ross D. MacCulloch, and Amy Lathrop 2013. Amphibians and reptiles of Guyana, South America: illustrated keys, annotated species accounts, and a biogeographic synopsis. Proceedings of the Biological Society of Washington 125 (4): 317-578; plates: 580-620 - get paper here
  • Duellman, W. E. 1978. The biology of an equatorial herpetofauna in Amazonian Ecuador. Misc. Publ. Univ. Kans. Mus. Nat. Hist. 65: 1-352 - get paper here
  • Frota, J.G. da; Pedroso dos Santos-Jr, Alfredo; Menezes-Chalkidis, H. de & Guimarães Guedes, A. 2005. AS SERPENTES DA REGIÃO DO BAIXO RIO AMAZONAS, OESTE DO ESTADO DO PARÁ, BRASIL (SQUAMATA). Biociências 13 (2): 211-220 - get paper here
  • Fugler, Charles M. and A. Brad Walls. 1978. Snakes of the Upano Valley of Amazonian Ecuador. Journal of the Tennessee Academy of Science 53 (3): 81-87 - get paper here
  • Gasc & Rodrigues 1980. Liste preliminaire des Serpents de la Guyane francaise. Bull. Mus. Nat. Hist. Nat. Paris 2 (4): 559-598
  • Gonzalez R. C. et al. 2020. Lista dos Nomes Populares dos Répteis no Brasil – Primeira Versão. Herpetologia Brasileira 9 (2): 121 – 214 - get paper here
  • Harrington, Sean M; Jordyn M de Haan, Lindsey Shapiro, Sara Ruane 2018. Habits and characteristics of arboreal snakes worldwide: arboreality constrains body size but does not affect lineage diversification. Biological Journal of the Linnean Society 125 (1): 61–71 - get paper here
  • Harvey, Michael B. 2008. New and Poorly Known Dipsas (Serpentes: Colubridae) from Northern South America. Herpetologica 64 (4): 422-451 - get paper here
  • Harvey, Michael B. and Dirk Embert 2008. Review of Bolivian Dipsas (Serpentes: Colubridae), with Comments on Other South American Species. Herpetological Monographs 22 (1): 54-105 - get paper here
  • Kornacker,P.M. 1999. Checklist and key to the snakes of Venezuela. PaKo-Verlag, Rheinbach, Germany, 270 pp.
  • Lancini,A.R. & Kornacker,P.M. 1989. Die Schlangen von Venezuela. Armitano Editores C.A., Caracas, 1-381
  • Lehr, E. 2002. Amphibien und Reptilien in Peru. Natur und Tier-Verlag (Münster), 208 pp. - get paper here
  • MacCulloch, R. D. & A. Lathrop 2004. A new species of Dipsas (Squamata: Colubridae) from Guyana. Revista de Biologia Tropical 52(1): 239-247 - get paper here
  • Metcalf, Matthew; Alexander Marsh, Emerson Torres, Devon Graham, Charles Gunnels 2020. Herpetofauna of the Santa Cruz Forest Preserve in the Peruvian Amazon Basin. Herpetology Notes 13: 753-767 - get paper here
  • Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP 2017. Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159 - get paper here
  • Natera-Mumaw, Marco; Luis Felipe Esqueda-González & Manuel Castelaín-Fernández 2015. Atlas Serpientes de Venezuela. Santiago de Chile, Dimacofi Negocios Avanzados S.A., 456 pp. - get paper here
  • Nogueira, Cristiano C.; Antonio J.S. Argôlo, Vanesa Arzamendia, Josué A. Azevedo, Fausto E. Barbo, Renato S. Bérnils, Bruna E. Bolochio, Marcio Borges-Martins, Marcela Brasil-Godinho, Henrique Braz, Marcus A. Buononato, Diego F. Cisneros-Heredia, 2019. Atlas of Brazilian snakes: verified point-locality maps to mitigate the Wallacean shortfall in a megadiverse snake fauna. South American J. Herp. 14 (Special Issue 1):1-274 - get paper here
  • Pedroza-Banda, Raúl; Jhon Jairo Ospina-Sarria, Teddy Angarita-Sierra, Marvin Anganoy-Criollo, John D. Lynch 2014. Estado de la fauna de anfibios y reptiles del Casanare Ciencias naturales Estado del conocimiento de la fauna de anfibios y reptiles del departamento de Casanare, Colombia. Rev. Acad. Colomb. Cienc. 38 (146): 17-34 - get paper here
  • Pérez-Santos,C. & Moreno, A.G. 1988. Ofidios de Colombia. Museo reegionale di Scienze Naturali, Torino, Monographie VI, 517 pp.
  • Peters , J. A. 1960. The snakes of the subfamily Dipsadinae. Misc. Publ. Mus. Zool., Univ. Michigan (114): 224 pp. - get paper here
  • RIVAS, GILSON A.; CÉSAR R. MOLINA, GABRIEL N. UGUETO, TITO R. BARROS, CÉSAR L. BAR- RIO-AMORÓS & PHILIPPE J. R. KOK 2012. Reptiles of Venezuela: an updated and commented checklist. Zootaxa 3211: 1–64 - get paper here
  • Rodrigues-França, Frederico Gustavo & Nathocley Mendes-Venâncio 2010. Reptiles and amphibians of a poorly known region in southwest Amazonia Biotemas, 23 (3): 71-84 - get paper here
  • Schlegel, H. 1837. Essai sur la physionomie des serpens. Partie Descriptive. La Haye (J. Kips, J. HZ. et W. P. van Stockum), 606 S. + xvi - get paper here
  • Silva, F.M.; A.C. Menks; A.L.C. Prudente; J.C.L. Costa; A.E.M. Travassos; U. Galatti. 2011. Squamate Reptiles from municipality of Barcarena and surroundings, state of Pará, north of Brazil. Check List 7 (3): 220-226 - get paper here
  • Starace, Fausto 1998. Guide des Serpents et Amphisbènes de Guyane. IBIS Rouge Editions, Guadeloupe, Guyane, 450 pp.
  • Starace, Fausto 2013. Guide des Serpents et Amphisbènes de Guyane. Ibis Rouge Editions, Matoury, Guyane, ISBN 978-2-84450-407-4 - get paper here
  • Torres-Carvajal O, Pazmiño-Otamendi G, Salazar-Valenzuela D. 2019. Reptiles of Ecuador: a resource-rich portal, with a dynamic checklist and photographic guides. Amphibian & Reptile Conservation 13 (1): [General Section]: 209–229 (e178) - get paper here
  • Vaz-Silva, W.; RM Oliveira, AFN Gonzaga, KC Pinto, FC Poli, TM Bilce, M Penhacek, L Wronski, JX Martins, TG Junqueira, LCC, Cesca VY, Guimarães RD. Pinheiro 2015. Contributions to the knowledge of amphibians and reptiles from Volta Grande do Xingu, northern Brazil Braz. J. Biol., 75 (3) (suppl.): S205-S218 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
 
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