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Atractus orcesi SAVAGE, 1955

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common Names 
SynonymAtractus orcesi SAVAGE 1955: 17
Atractus occipitoalbus – SAVAGE 1960 (part.)
Atractus orcesi — PASSOS et al. 2009
Atractus orcesi — WALLACH et al. 2014: 78 
DistributionEcuador, Colombia (Cauca, Huila, Putumayo, Amazon versant of the Andes from Parque Nacional Cueva de Los Guacharos (01° 49’ N, 75° 53’ W) in the Department of Cauca, Colombia, to Macas (02° 19’ S, 78° 07’ W) in the Province of Morona-Santiago, Ecuador, elevation 500–3000 m.

Habitat: Amazon Most Broadest Forest and Andean Broadest Forest.

Type locality: Loreto (00° 40’ S, 77° 19’ W, ca. 450 m elevation), Province of Orellana, Ecuador.  
TypesHolotype: CAS-SUR 15622, adult male, collected on October 1952 by J. Olalla. 
DiagnosisDiagnosis in Savage 1955: 17, and Passos et al. 2009. 
CommentRhabdosoma orcesi has been synonymized previously with Atractus occipitoalbus (by SAVAGE 1960) but revalidated by Passos et al. 2009. 
EtymologyNamed after Professor Gustavo Orces V. (1902-1999), a zoologist and herpetologist who worked at the Polytechnic, Quito and who had a large snake collection that he made available to other researchers (now mostly at the Fundación Herpetológica Gustavo Orces at Museo Ecuatoriano de Ciencias Naturales, Quito). 
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Passos, Paulo; Altagratia Chiesse, Omar Torres-Carvajal, and Jay M. Savage 2009. TESTING SPECIES BOUNDARIES WITHIN THE ATRACTUS OCCIPITOALBUS COMPLEX (SERPENTES: DIPSADIDAE). Herpetologica 65 (4): 384-403 - get paper here
  • Pérez-Santos,C. & Moreno, A.G. 1988. Ofidios de Colombia. Museo reegionale di Scienze Naturali, Torino, Monographie VI, 517 pp.
  • Savage, Jay M. 1955. Descriptions of new colubrid snakes, genus Atractus, from Ecuador. Proc. Biol. Soc. Washington 68: 11-20 - get paper here
  • Savage,J.M. 1960. A revision of the Ecuadorian snakes of the colubrid genus Atractus. Misc. Publ. Zool. Univ. Michigan 112: 1-86 - 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
  • 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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