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Dipsas gracilis (BOULENGER, 1902)

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Graceful Snail-eater 
SynonymLeptognathus gracilis BOULENGER 1902: 57
Leptognathus hammondii BOULENGER 1920: 108
Sibynomorphus macrostomus AMARAL 1924: 200
Sibynomorphus macrostomus — AMARAL 1925: 9
Dipsas gracilis — PETERS 1960: 44
Dipsas gracilis — LEHR 2002: 204
Dipsas gracilis — WALLACH et al. 2014: 232 
DistributionNW Ecuador, Colombia [Castro,F. (pers. comm.)]

Type locality: San Javier, Ecuador  
Reproductionoviparous 
TypesSyntypes: BMNH 1946.1.20.95; two males.
Holotype: USNM 14047 [Sibynomorphus macrostomus] 
Diagnosis 
CommentDipsas gracilis and D. viguieri are not distinguishable according to CADLE (2005).

Distribution: not in Peru fide IUCN assessment.

Habitat: fully arboreal (Harrington et al. 2018). 
EtymologyNamed after Latin “gracilis”, meaning small or lanky, or gracile. 
References
  • Amaral, A. do 1925. South American snakes in the collection of the United States National Museum. Proc. US Natl. Mus. 67 (24): 1-30 - get paper here
  • Arteaga AF, Bustamante-Enríquez LM and Guayasamin JM 2013. The Amphibians and Reptiles of Mindo. http://www.tropicalherping.com - get paper here
  • Boulenger,G.A. 1902. Descriptions of new batrachians and reptiles from northwestern Ecuador. Ann. Mag. Nat. Hist. (7) 9 (49): 51-57 - get paper here
  • Boulenger,G.A. 1920. Descriptions of four new snakes in the collection of the British Museum. [Zamenis hotsoni unassigned.]. Ann. Mag. nat. Hist. (9) 6 (31): 108-111 - get paper here
  • Cadle, J. E. 2005. SYSTEMATICS OF SNAKES OF THE DIPSAS OREAS COMPLEX (COLUBRIDAE: DIPSADINAE) IN WESTERN ECUADOR AND PERU, WITH REVALIDATION OF D. ELEGANS (BOULENGER) AND D. ELLIPSIFERA (BOULENGER). Bull. Mus. Comp. Zool. Harvard 158 (3): 67-136 - get paper here
  • Carvajal-Cogollo, J.E.; L.E. Rojas-Murcia. & G. Cárdenas-Arévalo 2020. Reptiles del Caribe colombiano/ Reptiles of the Colombian Caribbean. Tunja: Editorial UPTC, 268 pp. - 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
  • Lehr, E. 2002. Amphibien und Reptilien in Peru. Natur und Tier-Verlag (Münster), 208 pp. - get paper here
  • Mata-Silva, V, DeSantis DL, García-Padilla E, Johnson JD, Wilson LD. 2019. The endemic herpetofauna of Central America: a casualty of anthropocentrism. Amphibian & Reptile Conservation 13 (1) [General Section]: 1–64 (e168) - get paper here
  • Moreno-Arias, Rafael. 2010. Geographic distribution: Dipsas gracilis. Herpetological Review 41 (3): 379-380 - 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
  • Pinto-Erazo, M.A., Calderón-Espinosa, M.L., Medina-Rangel, G.F. & Méndez-Galeano, M.A. 2020. Herpetofauna from two municipalities of southwestern Colombia. Biota Colombiana 21(1): 41-57. DOI: 10.21068/c2020.v21n01a04 - get paper here
  • Rojas-Morales JA, Arias- Monsalve HF, Caicedo-Martínez LS, et al. 2023. Historical perspective and state of knowledge of the non-avian reptiles (Vertebrata: Sauropsida) of the Department of Caldas, Central Andes of Colombia. Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales. 47(185): 868-881 - 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.
  • Werner, F. 1910. Neue oder seltenere Reptilien des Musée Royal d'Histoire Naturelle de Belgique in Brüssel. [Mabuia dolloi, Mabuia polylepis]. Zool. Jb. Abt. Syst. Okol. Geogr. 28 [1909]: 263-288. - get paper here
 
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