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Pituophis insulanus (KLAUBER, 1946)

IUCN Red List - Pituophis insulanus - Least Concern, LC

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Higher TaxaColubridae, Colubrinae, Lampropeltini, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common NamesCedros Island Gopher Snake 
SynonymPituophis catenifer insulanus KLAUBER 1946: 11
Pituophis catenifer insulanus — SMITH & TAYLOR 1950: 323
Pituophis catenifer insulanus — LINER & CASAS-ANDREU 2008
Pituophis insulanus — GRISMER 2001
Pituophis insulanus — WALLACH et al. 2014: 561
Pituophis vertebralis insulanus — HEIMES 2016: 135
Pituophis insulanus — JOHNSON et al. 2017 
DistributionMexico (Baja California: Cedros Island)

Type locality: “Cedros (Cerros) Island off the west coast of Baja California"  
Reproductionoviparous 
TypesHolotype: CAS 56353 
Diagnosis 
CommentSubspecies: Some authors recognize Pituophis melanoleucus annectens (e.g. http://elib.cs.berkeley.edu/photos/fauna/cas-herp.html). COLLINS (1997) doesn’t recognize the subspecies bimaris, coronalis, fulginatus, insulanus, vertebralis but LINER (1994) does. See also P. catenifer.

Synonymy: Heimes 2016: 134 lists Pituophis catenifer insulanus as a synonym of P. vertebralis. 
Etymology 
References
  • Grismer, L. L. 2001. Comments on the Taxonomy of Gopher Snakes from Baja California, Mexico: A Reply to Rodriguez-Robles and de Jestis-Escobar Herpetological Review 32 (2): 81-83 - get paper here
  • Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
  • 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
  • Klauber, Laurence M. 1946. The gopher snakes of Baja California, with descriptions of new subspecies of Pituophis catenifer. Transactions of the San Diego Society of Natural History 11 (1): 1-40 + 2 plates - get paper here
  • Liner, Ernest A., and Gustavo Casas-Andreu. 2008. Standard Spanish, English and Scientific Names of the Amphibians and Reptiles of Mexico. Herpetological Circular 38: 167 p.
  • Smith, Hobart M. & Taylor, Edward H. 1950. Type localities of Mexican reptiles and amphibians. Univ. Kansas Sci. Bull. 33 (8): 313-380 - 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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