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Dipsas williamsi CARILLO DE ESPINOZA, 1974

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
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  
Reproductionoviparous 
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 (1914-1998), former curator of herpetology and professor of biology at the Museum of Comparative Zoology, Harvard University. 
References
  • 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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