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Dipsas nicholsi (DUNN, 1933)

IUCN Red List - Dipsas nicholsi - Least Concern, LC

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common Names 
SynonymSibynomorphus nicholsi DUNN 1933: 193
Sibon nicholsi — DUNN 1940
Dipsas nicholsi — SMITH 1958
Dipsas variegata nicholsi — PETERS 1960: 137
Dipsas variegata — PETERS & OREJAS-MIRANDA 1970: 90
Dipsas nicholsi — CADLE & MYERS 2003
Dipsas nicholsi — WALLACH et al. 2014: 233 
DistributionC Panama (endemic)

Type locality: Chagres River and Pequeni River, Panama [i.e. the junction of the Río Pequení with the Río Boquerón in the ‘‘mid-basin’’ [= upper drainage] of the Río Chagres at approximately 9° 21’N, 79° 33’ W]. 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.
 
Reproductionoviparous 
TypesHolotype: MCZ 37884 (head and neck only) 
CommentSnail-eater. Previously considered as subspecies or synonym of Dipsas variegata. Specimens from western Ecuador previously assigned to ‘‘Dipsas variegata nicholsi’’ represent a different species—Dipsas andiana (Boulenger),
which has been resurrected from the synonymy of Dipsas oreas (Cope) by CADLE & MYERS (2003). 
References
  • 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. 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
  • Cadle, J.E. & Myers, C.W. 2003. Systematics of Snakes Referred to Dipsas variegata in Panama and Western South America, with Revalidation of Two Species and Notes on Defensive Behaviors in the Dipsadini (Colubridae). American Museum Novitates 3409: 1-47 - get paper here
  • Dunn, E.R. 1933. A new snake from Panama. Copeia 1933: 193-194 - get paper here
  • Dunn,E.R. 1940. New and noteworthy herpetological material from Panamá. Proc. Acad. Nat. Sci. Philadelphia. 92: 105-122. - get paper here
  • Myers, Charles W.; Iba�nez D., Roberto.; Cadle, John E. 2007. On the uniquely fragmented distribution of a rare Panamanian snake, Dipsas nicholsi (Colubridae, Dipsadinae). American Museum novitates (3554) - get paper here
  • Peters , J. A. 1960. The snakes of the subfamily Dipsadinae. Misc. Publ. Mus. Zool., Univ. Michigan (114): 224 pp. - get paper here
  • Ray, Julie M.; Chad E. Montgomery, Heidi K. Mahon, Alan H. Savitzky, and Karen R. Lips 2012. Goo-Eaters: Diets of the Neotropical Snakes Dipsas and Sibon in Central Panama. Copeia 2012 (2): 197-202. - get paper here
  • Smith,H.M. 1958. Handlist of the snakes of Panamá. Herpetologica 14: 222-224. - 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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http://reptile-database.reptarium.cz/species?genus=Dipsas&species=nicholsi

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