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Lampropeltis webbi BRYSON, DIXON & LAZCANO, 2005

IUCN Red List - Lampropeltis webbi - Data Deficient, DD

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Higher TaxaColubridae, Colubrinae, Lampropeltini, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common Names 
SynonymLampropeltis webbi BRYSON, DIXON & LAZCANO 2005
Lampropeltis webbi — WALLACH et al. 2014: 360 
DistributionMexico (Pacific versant of the Sierra Madre Occidental in Mixed Boreal-Tropical habitat near the Durango/Sinaloa state border)

Type locality: 4.0 km west of El Palmito on Hwy. 40, Municipio Concordia, Sinaloa, México (23° 33’ 14.2’’ N, 105° 50’ 47.2’’ W), 2000 m elevation. Map legend:
Type locality - Type locality.
 
Reproductionoviparous 
TypesHolotype: UANL 5684 
CommentDiagnosis.-A species of tricolored kingsnake most closely resembling Lampropeltis pyromelana and Lampropeltis mexicana but differing from those species in a number of characters. Lampropeltis webbi can be distinguished from L. pyromelana based on a primarily black snout, the smaller number of white annuli, and a different head pattern. It differs from L. mexicana in having a higher number of ventral and subcaudal scales and in having a different body pattern. In addition, L. webbi is distinguished from L. pyromelana and L. mexicana and all other members of this genus, by mitochondrial DNA markers. The following combination of nucleotide states within the ND4-Leu gene region is diagnostic for L. webbi in our analysis. The numbers refer to the positions within the aligned sequences referenced in Appendix 1; position 1 corresponds to position 11703 of the complete Dinodon semicarinatus mitochondrial genome (GenBank accession number NC 001945). [from BRYSON et al. 2005]

Note that this diagnosis is fairly vague. 
EtymologyNamed after Robert G. Webb for his countless hours of research on the herpetofauna of northwestern México. 
References
  • Bryson, R.W.; Dixon, J.R. & Lazcano, D. 2005. New species of Lampropeltis (Serpentes: Colubridae) from the Sierra Madre Occidental, México. Journal of Herpetology 39 (2): 207-214 - get paper here
  • Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
  • Valdez-Lares, R.; R. Muñiz-Martínez; E.Gadsden; G. Aguirre-León; G. Castañeda-Gaytán; R. Gonzalez-Trápaga 2013. Checklist of amphibians and reptiles of the state of Durango, México. Check List 9 (4):714-724 - 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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