THE CENTER FOR NORTH AMERICAN HERPETOLOGY

Reptilia    Squamata (part)    Crotaphytidae  

Eastern Collared Lizard
Crotaphytus collaris (Say in James, 1822 “1823”)

SSAR 9th Edition Comments:
 There are no current SSAR comments for this taxon.

Range maps are based on curated specimens and provided gratis by CNAH.
(Created by Travis W. Taggart; Version: 2023.04.08.12.46.05)
Download GeoJSON polygon range file: - 1.96 MB

Province/State Distribution:
USA: Arizona Arkansas Colorado Kansas Louisiana Missouri New Mexico Oklahoma Texas Utah

First instance(s) of published English names:
Collared Ameiva (Teius collaris: Gray, John E. 1830. A synopsis of the species of the class reptilia. Pages 1-110 in The Animal Kingdom Arranged in Conformity with its Organization by the Baron Cuvier, member of teh Institute of France, with Additional Descriptions of all the Species Hitherto Named, and of many not before noticed. Ninth Volume. Whittaker, Treacher, and Company, London, England. pp.); Ring-necked Lizard (Crotaphytus collaris: Yarrow, Henry C. 1876. List of Skeletons and Crania in the Section of Comparative Anatomy of the United States Army Medical Museum for use during the International Exhibition of 1876 in Connection with the Representation of the Medical Department U.S. Army. Army Medical Museum, Washington, D. C. pp.); Collared Lizard (Crotaphytus collaris: Yarrow, Henry C. 1876. List of Skeletons and Crania in the Section of Comparative Anatomy of the United States Army Medical Museum for use during the International Exhibition of 1876 in Connection with the Representation of the Medical Department U.S. Army. Army Medical Museum, Washington, D. C. pp.); Bailey's Lizard (Crotaphytus baileyi: Van Denburgh, John. 1897. The reptiles of the Pacific Coast and Great Basin: An account of the species known to inhabit California, and Oregon, Washington, Idaho, and Nevada. Occasional Papers of the California Academy of Sciences 5():9-236); Bull Lizard (Crotaphytus collaris: Hurter, Julius. 1911. Herpetology of Missouri. Transactions of the Academy of Science St. Louis 20(5):59-274); Mountain Boomer (Crotaphytus collaris collaris: Stejneger, Leonhard H. and Thomas Barbour. 1917. A Checklist of North American Amphibians and Reptiles. Harvard University Press, Cambridge, Massachusetts. pp.); Collared Lizard (Crotaphytus collaris collaris: Stejneger, Leonhard H. and Thomas Barbour. 1917. A Checklist of North American Amphibians and Reptiles. Harvard University Press, Cambridge, Massachusetts. pp.); Western Collard Lizard (Crotaphytus collaris baileyi: Van Denburgh, John. 1922. The Reptiles of Western North America: An Account of the Species Known to Inhabit California and Oregon, Washinton, Idaho, Utah, Nevada, Arizona, British Columbia, Sonora, and Lower California. Volume I. Lizards. California Academy of Sciences, San Francisco. 556pp.); Ring-necked Lizard (Crotaphytus collaris collaris: Strecker, John K., Jr. 1922. An annotated catalogue of the amphibians and reptiles of Bexar County, Texas. Bulletin Scientific Society of San Antonio (4):1-31); Collared Lizard (Crotaphytus collaris collaris: Strecker, John K., Jr. 1922. An annotated catalogue of the amphibians and reptiles of Bexar County, Texas. Bulletin Scientific Society of San Antonio (4):1-31); Mountain Boomer (Crotaphytus collaris: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.); Collared Lizard (Crotaphytus collaris: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.); Yellow-headed Collared Lizard (Crotaphytus collaris auriceps: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.); Western Collared Lizard (Crotaphytus collaris baileyi: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.); Eastern Collared Lizard (Crotaphytus collaris collaris: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.); Mountain Boomer (Crotaphytus collaris collaris: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.);

Taxon Links:

  
Catalog of American Amphibians and Reptiles
  
The Reptile Database
  
NatureServe
  
iNaturalist
  
GenBank
  
USGS - Nonindigenous Aquatic Species Database

Selected References:
1822 James, Edwin. Account of an expedition from Pittsburgh to the Rocky Mountains, performed in the years 1819 and ‘20, by order of the Hon. J. C. Calhoun, Sec’y of War: under the command of Major Stephen H. Long. From the notes of Major Long, Mr. T. Say, and other gentlemen of the exploring party. Compiled by Edwin James, botanist and geologist for the expedition. In two vols. – with an atlas. [Volume 2]. Henry Charles Carey and Isaac Lea, Philadelphia, Pennsylvania. 442, with supplementary chapters and an appendix.pp.
1928 Burt, Charles E. The synonomy [sic], variation, and distribution of the collared lizard, Crotaphytus collaris (Say). Occasional Papers of the Museum of Zoology, University of Michigan (196):1-19
1929 Burt, Charles E. The sexual dimorphism of the Collared Lizard, Crotaphytus collaris. Papers of the Michigan Academy of Science, Arts and Letters 10:417-421
1951 Fitch, Henry S. and Wilmer W. Tanner. Remarks concerning the systematics of the collared lizard, Crotaphytus collaris, with a description of a new subspecies. Transactions of the Kansas Academy of Science 54(4):548-559
1956 Fitch, Henry S. An ecological study of the Collared Lizard (Crotaphytus collaris) University of Kansas Publications Museum of Natural History 8(3):213-274
1974 Smith, Nathan M. and Wilmer W. Tanner. A taxonomic study of the western collared lizards, Crotaphytus collaris and Crotaphytus insularis. Brigham Young University Science Bulletin 19(4):1–29
1974 Montanucci, Richard R. Convergence, polymorphism or introgressive hybridization? An analysis of interaction between Crotaphytus collaris and C. reticulatus (Sauria: Iguanidae). Copeia 1974(1):87-101
1975 Montanucci, Ricahrd R., Ralph W. Axtell, and Herbert C. Dessauer. Evolutionary divergence among collared lizards (Crotaphytus), with comments on the status of Gambelia. Herpetologica 31:336-347
1986 Cline, George R. and B. A. Cline. Etymology of Mountain Boomer. Bulletin of the Oklahoma Herpetological Society 11(1-4):16-19
1994 McCoy, J. Kelly, Stanley F. Fox, and Troy A. Baird. Geographic variation in sexual dimorphism in the collared lizard, Crotaphytus collaris (Sauria: Crotaphytidae) . Southwestern Naturalist 39:328-335
1995 McCoy, J. Kelly. Mechanisms of selection for the evolution of sexual dimorphism in the collared lizard (Crotaphytus collaris). Dissertation. Oklahoma State University, Stillwater. pp.
1996 Yoshioka, Joy H. The genetic structure of Oklahoma populations of the collared lizard, Crotaphytus collaris. Thesis. Oklahoma State University, Stillwater. 62pp.
1996 Dundee, Harold A. Some reallocations of type localities of reptiles and amphibians described from the Major Stephen H. Long Expedition to the Rocky Mountains, with comments on some of the statements made in the account written by Edwin James. Tulane Studies in Zoology and Botany 30:75–89
1996 McGuire, Jimmy A. Phylogenetic systematics of crotaphytid lizards (Reptilia: Iguania: Crotaphytidae). Bulletin of the Carnegie Museum of Natural History 32:iv + 1-143
1997 McCoy, J. Kelly, Harmon, H.J., Baird, Troy A. and Fox, Stanley F. Geographic variation in sexual dichromatism in the collared lizard, Crotaphytus collaris (Sauria: Crotaphytidae). Copeia 1997(3):565-571
2000 Hranitz, John M. and Troy A. Baird. Effective population size and genetic structure of a population of collared lizards, Crotaphytus collaris, in central Oklahoma. Copeia 2000(3):786-791
2001 Templeton, A. R., R. J. Robertson,J. Brisson, and J. Strasburg. Disrupting evolutionary processes: The effect of habitat fragmentation on collared lizards in the Missouri Ozarks. Proceedings of the National Academy of Sciences 98(10):5426-5432
2005 Husak, Jerry F. Ecological and evolutionary significance of locomotor performance in Collared Lizards (Crotaphytus collaris). Dissertation. Oklahoma State University, Stillwater. 111pp.
2007 McGuire, Jimmy A., Charles W. Linkem, Michelle S. Koo, Delbert W. Hutchison, A. Kristopher Lappin, David I. Orange, Julio Lemos-Espinal, Brett R. Riddle, and Jef R. Jaeger. Mitochondrial introgression and incomplete lineage sorting through space and time: Phylogenetics of Crotaphytid lizards. Evolution 61-(12):2879–2897

THE CENTER FOR NORTH AMERICAN HERPETOLOGY — Accessed: Monday 19 May 2025 19:50 CT