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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. Map legend:
Type locality - Type locality.
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
TypesHolotype: CAS-SU 15622, adult male, collected on October 1952 by J. Olalla (specimen examined). 
CommentRhabdosoma orcesi has been synonymized previously with Atractus occipitoalbus (by SAVAGE 1960) but revalidated by Passos et al. 2009.

Diagnosis in Passos et al. 2009. 
  • 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
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. Taylor and Francis, CRC Press, 1237 pp.
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