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Xantusia jaycolei BEZY, BEZY & BOLLES, 2008

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Higher TaxaXantusiidae (Xantusiinae), Scincoidea, Sauria, Squamata (lizards) 
Subspecies 
Common Names 
SynonymXantusia jaycolei BEZY, BEZY & BOLLES 2008
Xantusia jaycolei — JOHNSON et al. 2017 
DistributionMexico (Sonora)

Type locality: near Desemboque del Rio San Ignacio, Sonora, Mexico, 29.504537° N, 112.393438°W, approximately 10 m elevation.  
Reproductionviviparous 
TypesHolotype: UAZ 28934 
DiagnosisDiagnosis. Xantusia jaycolei differs from all other species of the genus except X. henshawi, X. gracilis, X. arizonae, and X. bezyi in that the females lack well-developed femoral pores (pores absent or marked by shallow depressions vs. a conspicuous glandular pore; Fig. 4). It differs from X. riversiana, X. henshawi, X. gracilis, and X. bolsonae in having fewer longitudinal rows of ventral scales at midbody (12 vs. 14–16); from X. arizonae, X. bezyi, and X. sierrae in having fewer dorsal scales around midbody (36–39 vs. 40–49); from X. sanchezi in having more scales around the second caudal whorl (32–36 vs. 25–28); and from X. gilberti in having small scales bordering the labium behind the fifth infralabial (from BEZY et al. 2008). 
Comment 
EtymologyEtymology.—The specific name is a noun in the genitive singular case. The species is named for a friend and colleague of the authors, Charles J. (Jay) Cole (Curator Emeritus, American Museum of Natural History) in recognition of his contributions to squamate sytematics and his participation in research on xantusiids in the field and laboratory. 
References
  • Bezy, R. L., P. C. Rosen, T. R. Van Devender, and E. F. Enderson. 2017. Southern distributional limits of the Sonoran Desert herpetofauna along the mainland coast of northwestern Mexico. Mesoamerican Herpetology 4(1): 138–167 - get paper here
  • Bezy, Robert L; Kit B Bezy, and Kathryn Bolles 2008. Two New Species of Night Lizards (Xantusia) from Mexico. Journal of Herpetology 42 (4): 680-688 - get paper here
  • Enderson, Erik F.; Adrian Quijada-Mascareñas; Dale S. Turner; Philip C. Rosen & Robert L. Bezy 2009. The herpetofauna of Sonora, Mexico, with comparisons to adjoining states. Check List 5 (3): 632–672
  • Johnson, J. D., L. D. Wilson, V. Mata-Silva, E. García-Padilla, and D. L. DeSantis. 2017. The endemic herpetofauna of Mexico: organisms of global significance in severe peril. Mesoamerican Herpetology 4(3): 544–620
  • Nevárez-de los Reyes; Manuel, David Lazcano, Javier Banda-Leal and Ian Recchio 2014. Notes on Mexican Herpetofauna 22: Herpetofauna of the Continental Portion of theMunicipality of Hermosillo, Sonora, Mexico. Bull. Chicago Herp. Soc. 49(8):105-115 - get paper here
 
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