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Helicops pastazae SHREVE, 1934

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common NamesShreve's Keelback 
SynonymHelicops pastazae SHREVE 1934: 129
Helicops pastazae — PETERS & OREJAS-MIRANDA 1970: 125
Helicops pastazae — KORNACKER 1999: 89
Helicops pastazae — WHITHWORTH & BEIRNE 2011
Helicops pastazae — WALLACH et al. 2014: 322 
DistributionEcuador, Colombia, Venezuela (Zulia), Peru

Type locality: Río Pastaza, between Canelos and the Marañon River, Ecuador.  
Reproductionviviparous 
TypesHolotype: MCZ 36993 
Diagnosis 
Comment 
Etymology 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Cobos, Daniela García; Diego Andres Gómez Sánchez 2019. Reproductive mode and defensive behaviour of the South American aquatic snake Helicops pastazae (Serpentes: Dipsadidae) Herpetology Notes 12: 447-451 - get paper here
  • Costa, Henrique C.; Diego J. Santana, Fernando Leal, Ricardo Koroiva, and Paulo C.A. Garcia 2016. A New Species of Helicops (Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil. Herpetologica 72 (2): 157-166
  • Kawashita-Ribeiro, Ricardo Alexandre; Robson Waldemar Ávila, and Drausio Honorio Morais 2013. A New Snake of the Genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil. Herpetologica 69 (1): 80-90. - 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
  • Lourdes-Almendariz, Ana De 2017. Feeding behavior of Helicops pastazae Shreve 1934 (Serpentes, Colubridae, Dipsadinae) in the Ecuadorian Amazon. Herpetology Notes 10: 449-451 - get paper here
  • Markezich, A.L. 2002. New distribution records of reptiles from Western Venezuela. Herpetological Review 33 (1): 69-74 - get paper here
  • MORAES-DA-SILVA, ANTONIO; RENATA CECÍLIA AMARO, PEDRO M. SALES NUNES, CHRISTINE STRÜSSMANN, MAURO JUNIOR TEIXEIRA, ALBEDI JR. ANDRADE, VINÍCIUS SUDRÉ, RENATO RECODER, MIGUEL TREFAUT RODRIGUES, FELIPE FRANCO CURCIO 2019. Chance, luck and a fortunate finding: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes: Xenodontinae), from the Brazilian Pantanal wetlands. Zootaxa 4651 (3): 445–470 - 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
  • 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.
  • 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
  • Rossman, Douglas A. 1976. Revision of the South American colubrid snakes of the Helicops pastazae complex. Occasional papers of the Museum of Zoology, Louisiana State University (50): 1-15 - get paper here
  • Shreve, B. 1934. NOTES ON ECUADORIAN SNAKES. Occ. Pap. Boston Soc. Nat. Hist. 8: 125- 131 - 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
  • Valencia, J. H., K. Garzón-Tello & M. E. Barragán-Paladines 2016. Serpientes venenosas del Ecuador: sistemática, taxonomía, historia natural, conservación, envenenamiento y aspectos antropológicos. Quito, Ecuador, Fundación Herpetológica Gustavo Orcés, Universidad de Texas, Fondo Ambiental Nacional, 652 pp. [review in HR 49 (1): 152, 2018]
  • 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.
  • Whithworth, A. & Beirne, C. 2011. Reptiles of the Yachana Reserve. Global Vision International, 130 pp. - get paper here
 
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