The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

• Axtell, R. W. 1983. Holbrookia propinqua. Catalogue of American Amphibians and Reptiles. 341.1-341.2
• Axtell, Ralph W. 1981. Holbrookia Propinqua: Type specimens, collector, his route, and restriction of locality, with comments on Baird's "Reptiles of the Boundary" as an important taxonomic reference. Journal of Herpetology 15 (2): 211-217.
• Axtell, Ralph W. 1983. Holbrookia propinqua. Catalogue of American Amphibians and Reptiles (341): 1-2.
• Baird,S.F. and Girard,C. 1852. Characteristics of some new reptiles in the Museum of the Smithsonian Institution, part 2. Proc. Acad. Nat. Sci. Philadelphia 6: 125-129.
• Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes. 2004. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada, draft (2004)
• Banks, R. C., R. W. McDiarmid, and A. L. Gardner. 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166. 79
• Bechtel, B. 1995. Reptile and Amphibian Variants Colors, Patterns, and Scales. United States of America: Krieger Publishing Company.
• Behler, J., F. King. 1979. Audubon Society Field Guide to North American Reptiles & Amphibians. United States: Alfred A. Knopf, Inc..
• Bockstanz, L., D. Cannatella. 1999. "Herps of Texas: Holbrookia propinqua" (On-line). Accessed 4 April 2001 at http://www.zo.utexas.edu/research/txherps/lizards/holbrookia.propinqua.html.
• Boulenger, G.A. 1885. Catalogue of the lizards in the British Museum (Natural History). Vol. 2, Second edition. London, xiii+497 pp.
• Boundy, Jeff. 1994. County records for Texas amphibians and reptiles. Herpetological Review 25 (3): 129.
• Cochran, D., C. Goin. 1970. The New Field Book of Reptiles and Amphibians. United States: G.P. Putnam's Sons, New York.
• Cogger, D., D. Zweifel. 1998. Encyclopedia of Reptiles & Amphibians. United States: Academic Press, A Division of Harcourt Brace & Company.
• Collins, J. T. 1990. Standard Common and Current Scientific Names for North American Amphibians and Reptiles, Third Edition. ii + 41
• Conant, R. 1958. The Peterson Field Guide Series, A Field Guide to Reptiles and Amphibians of Eastern North America. Boston, MA, United States: Houghton Mifflin Company.
• Conant,R. & Collins,J.T. 1991. A Field Guide to Reptiles and Amphibians of Eastern/Central North America, 3rd ed. Houghton Mifflin (Boston/New York), xx + 450 p.
• Cooper Jr., W.E. 2005. Duration of movement as a lizard foraging movement variable. Herpetologica 61 (4): 363-372.
• Cooper, William E., Jr. 1984. Female secondary sexual coloration and sex recognition in the keeled earless lizard, Holbrookia propinqua. Animal Behaviour 32: 1142-1150.
• Cope, E.D. 1880. On the zoological position of Texas. Bull. US Natl. Mus., No. 17: 1-51.
• Flores-Villela, Oscar / McCoy, C. J., ed. 1993. Herpetofauna Mexicana: Lista anotada de las especies de anfibios y reptiles de México, cambios taxonómicos recientes, y nuevas especies. Carnegie Museum of Natural History Special Publication, no. 17. iv + 73
• Günther, A. C. L. G. 1885. Reptilia and Batrachia. Biologia Centrali-Américana. Taylor, & Francis, London, 326 pp. [published in parts from 1885-1902; reprint by the SSAR 1987].
• Harper, Francis. 1932. A new Texas subspecies of the lizard genus Holbrookia. Proc. Biol. Soc. Washington 45: 15-18.
• Hickman, C., L. Roberts, A. Larson. 2001,1997. Integrated Principles of Zoology. Eleventh Edition. New York: McGraw-Hill Companies, Inc..
• Lectotype: Axtell, R. W. 1981. Journal of Herpetology. 15 (2): 211.; Baird, S. F. & Girard, C. 1852. Proc. Acad. Nat. Sci. Philadelphia. 6 (4): 126.; Syntype: Axtell, R. W. 1981. Journal of Herpetology. 15 (2): 211.; Baird, S. F. & Girard, C. 1852. Proc. Acad. Nat. Sci. Philadelphia. 6 (4): 126.
• Liner, Ernest A. 2007. A CHECKLIST OF THE AMPHIBIANS AND REPTILES OF MEXICO. Louisiana State University Occasional Papers of the Museum of Natural Science 80: 1-60.
• Paralectotype: Axtell, R. W. 1981. Journal of Herpetology. 15 (2): 211.; Baird, S. F. & Girard, C. 1852. Proc. Acad. Nat. Sci. Philadelphia. 6 (4): 126.
• Schulte, J.A. & de Queiroz, K. 2008. PHYLOGENETIC RELATIONSHIPS AND HETEROGENEOUS EVOLUTIONARY PROCESSES AMONG PHRYNOSOMATINE SAND LIZARDS (SQUAMATA, IGUANIDAE) REVISITED. Molecular Phylogenetics and Evolution 47: 700-716.
• Smith, H. M., & Burger, W.L. 1949. Herpetological results of the University of Illinois field expedition, Spring 1949. Transactions of the Kansas Academy of Sciences 53 (2): 165-175.