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Crotaphytus insularis VAN DENBURGH & SLEVIN, 1921

IUCN Red List - Crotaphytus insularis - Least Concern, LC

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Higher TaxaCrotaphytidae, Iguania, Sauria, Squamata (lizards) 
Subspecies 
Common NamesEastern Collared Lizard 
SynonymCrotaphytus insularis VAN DENBURGH & SLEVIN 1921
Crotaphytus collaris insularis — SOULÉ & SLOAN 1966
Crotaphytus insularis insularis — SMITH & TANNER 1972
Crotaphytus insularis — STEBBINS 1985: 121
Crotaphytus insularis — LINER 1994 
DistributionMexico (Baja California: Angel de la Guarda Island)

Type locality: Angel de la Guarda Island, 7 miles north of Pond Island, Gulf of California, Baja California  
Reproductionoviparous 
TypesHolotype: CAS 49151 
CommentMontanucci (1983) downgraded Crotaphytus bicinctores to C. insularis bicinctores but others revalidated it. Crotaphytus insularis is part of a natural group containing C. bicinctores, C. grismeri, and C. vestigium and is the sister species of C. vestigium (McGuire 1996). 
References
  • Collins, J.T. and T. W. Taggart 2009. Standard Common and Current Scientific Names for North American Amphibians, Turtles, Reptiles, and Crocodilians, Sixth Edition. Center for North American Herpetology, 48 pp.
  • Jones, L.L. & Lovich, R.E. 2009. Lizards of the American Southwest. A photographic field guide. Rio Nuevo Publishers, Tucson, AZ, 568 pp. [review in Reptilia 86: 84] - get paper here
  • Lipfert, J. 2004. Halsbandleguane (die Gattung Crotaphytus). Natur und Tier Verlag (Münster), 64 pp. - get paper here
  • McGuire, J. A. 1996. Phylogenetic systematics of crotaphytid lizards (Reptilia: Iguania: Crotaphytidae). Bulletin of Carnegie Museum of Natural History 32: 1-142 - get paper here
  • Montanucci, R. R. 1983. Natural Hybridization between Two Species of Collared Lizards (Crotaphytus). Copeia 1983 (1): 1-11 - get paper here
  • Mosauer, Walter 1936. The reptilian fauna of sand dune areas of Vizcaino Desert and of northwestern Lower California. Occasional Papers of the Museum of Zoology, University of Michigan (329): 1-21
  • Pianka, E.R. & Vitt, L.J. 2003. Lizards - Windows to the Evolution of Diversity. University of California Press, Berkeley, 347 pp. [review in Copeia 2004: 955] - get paper here
  • Smith,N.M. and Tanner,W.W. 1972. Two new subspecies of Crotaphytus (Sauria: Iguanidae). Great Basin Naturalist. 32: 25-34 - get paper here
  • Stebbins,R.C. 1985. A Field Guide to Western Reptiles and Amphibians, 2nd ed. Houghton Mifflin, Boston
  • Van Denburgh,J. and Slevin,J.R. 1921. A list of the amphibians and reptiles of Nevada, with notes on the species in the collection of the academy. Proc. Cal. Acad. Sci. (4) 11 (2): 27-38 - get paper here
 
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