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Dendrophidion graciliverpa CADLE, 2012

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Common Names 
SynonymDendrophidion graciliverpa CADLE 2012
Drymobius dendrophis — BOULENGER 1894: 16 (part)
Dendrophidion percarinatum — DUNN 1944: 477 (part)
Dendrophidion graciliverpa — WALLACH et al. 2014: 225 

Type locality: 3 km E Pasaje, 30 m elevation, El Oro province, Ecuador [03°20’S, 79°49’W].  
TypesHolotype: AMNH R-110584 (Figs. 20, 21, 23, 26A in Cadle 2012). 
CommentDistribution: (Fig. 27 in Cadle 2012) Dendrophidion graciliverpa occurs in the lowlands of western Ecuador from Esmeraldas and Imbabura provinces in the north to Loja province in the south. The upper elevational record, 1,750 m, is based on a juvenile male and female from Cotopaxi province (MCZ 163968–69, referred specimens). These specimens have typical graciliverpa banding patterns, and the retracted hemipenis of the male extends to the proximal suture of subcaudal 15 (potential confusion with D. brunneum is possible in this area, but gracile hemipenial morphology is decisive for identification). 
EtymologyThe specific name is a feminine noun in apposition derived from the Latin words gracilis (slender or gracile) + verpa (penis). The name refers to the long, slender hemipenis of this species in comparison specifically to Dendrophidion percarinatum, with which it has been confused, but also more generally to hemipenes of most other species of Dendrophidion. 
  • Arteaga AF, Bustamante-Enríquez LM and Guayasamin JM 2013. The Amphibians and Reptiles of Mindo. - get paper here
  • Cadle, John E. 2012. Systematics of the Neotropical Snake Dendrophidion percarinatum (Serpentes: Colubridae), With Descriptions of Two New Species from Western Colombia and Ecuador and Supplementary Data on D. brunneum. Bull. Mus. Comp. Zool. Harvard 160 (6): 259-344. - 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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