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Rhadinella hempsteadae (STUART & BAILEY, 1941)

IUCN Red List - Rhadinella hempsteadae - Endangered, EN

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Hempstead's Pine Woods Snake 
SynonymRhadinaea hempsteadae STUART & BAILEY 1941
Rhadinaea hempsteadae — LINER 1994
Rhadinella hempsteadae — MYERS 2011
Rhadinella hempsteadae — WALLACH et al. 2014: 643 

Type locality: above Finca Chichen, Alta Verapaz, Guatemala, approximately 1737 m (5700 ft.) elevation.  
TypesHolotype: UMMZ 89080
Holotype:-UMMZ 89078 [stadelmani] 
DiagnosisDiagnosis (hempsteadae): Dorsal scale rows 19; ventral scales in females 156-172;dark brown or black stripe on scale row six, seven, or eight absent; hemipenial base spinose, capitulum covered with calyces bearing uniformly papillate rims; 13-15 maxillary teeth [MENDELSON & KIZIRIAN 1995]. 
CommentColor plate 68 in VILLA et al. 1988. Not listed in Liner 2007.

Synonymy: Myers 1974 synonymized R. stadelmani with R. hempsteadae. He justified this with the observation that the holotype of hempsteadae is an adult male whereas the name Rhadinaea stadelmani is based on a juvenile female. MENDELSON & KIZIRIAN 1995 resurrected stadelmani for populations in the Sierrade los Cuchumatanes and Montafiasde Cuilco, in northwestern Guatemala.

Distribution: not in Mexico (Wallach et al. 2014, Heimes 2016). 
EtymologyNamed after Mrs.R.W. Hempstead of Cobain, Guatemala, in recognition of courtesies rendered to L.C. Stuart in the course of his investigations on the fauna of Alta Verapaz. 
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Köhler, G. 2008. Reptiles of Central America. 2nd Ed. Herpeton-Verlag, 400 pp.
  • Mendelson, J.R. & D.A. Kizirian 1995. Geographic variation in Rhadinaea hempsteadae (Serpentes: Colubridae) with the description of a new species from Chiapas, Mexico. Herpetologica 51 (3): 301-313. - get paper here
  • Myers, C.W. 1974. The systematics of Rhadinaea (Colubridae), a genus of New World snakes. Bull. Amer. Mus. nat. Hist. 153 (1): 1-262 - get paper here
  • Myers, Charles W. 2011. A New Genus and New Tribe for Enicognathus melanauchen Jan, 1863, a Neglected South American Snake (Colubridae: Xenodontinae), with Taxonomic Notes on Some Dipsadinae. American Museum Novitates (3715): 1-33 - get paper here
  • Stuart, L. C. & Bailey, Joseph R. 1941. Three new species of the genus Rhadinaea from Guatemala. Occasional Papers of the Museum of Zoology, University of Michigan (442): 1-11 - 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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