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Dipsas williamsi CARILLO DE ESPINOZA, 1974

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Common NamesWilliams' Tree Snake 
SynonymSibynomorphus williamsi CARILLO DE ESPINOZA 1974
Sibynomorphus williamsi — CADLE 2007
Sibynomorphus williamsi — WALLACH et al. 2014: 671
Dipsas williamsi — ARTEAGA et al. 2018 
DistributionPeru (Lima)

Type locality: Peru, Lima, Jicamarca  
TypesHolotype: MUSM 2170 
DiagnosisDiagnosis in Cadle 2007.
CommentDiet: primarily molluscs (T. de Lema, pers. comm., 16 Oct 2015). 
EtymologySibynomorphus williamsi was named for Ernest E. Williams, former curator of herpetology and professor of biology at the Museum of Comparative Zoology, Harvard University. 
  • Arteaga A, Salazar-Valenzuela D, Mebert K, Peñafiel N, Aguiar G, Sánchez-Nivicela JC, Pyron RA, Colston TJ, Cisneros-Heredia DF, Yánez-Muñoz MH, Venegas PJ, Guayasamin JM, Torres-Carvajal O 2018. Systematics of South American snail-eating snakes (Serpentes, Dipsadini), with the description of five new species from Ecuador and Peru. ZooKeys 766: 79-147 - get paper here
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Cadle, J.E. 2007. The snake genus Sibynomorphus (Colubridae: Dipsadinae: Dipsadini) in Peru and Ecuador, with comments on the systematics of Dipsadini. Bull. Mus. Comp. Zool. Harvard 158(5):183-283 - get paper here
  • Carillo DE ESPINOZA 1974. Sibynomorphus williamsi nov. sp. (Serpentes: Colubridae. Publicaciones del Museo de Historia Natural ‘‘Javier Prado,’’ serie A (Zoología), 24: 1-16
  • 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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