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Taxonomy of the genus Crotaphytus Biodiversity of the family Crotaphytidae

Bibliography of the genus
Crotaphytus (North American Collared Lizards)

(Reptilia: Sauria: Crotaphytidae)

Note: In order to limit redundancy, relevant literature indexed in the related bibliographies in the left column may not have been included in this page. For a comprehensive search of literature, these bibliographies should therefore also be consulted.


Crotaphytus in general

Axtell, R.W.; Webb, R.G. 1995. Two new Crotaphytus from southern Coahuila and the adjacent states of east-central Mexico. Bulletin of the Chicago Academy of Sciences 16(2): 1-15.

Burt, C.E. 1931. On the occurrence of a throat-fan in Callisaurus ventralis gabbii and two species of Crotaphytus. Copeia 1931: 58.

Bustard, R. 1961. Collared lizards and chuckawallas. Aquarist and Pondkeeper 26: 134-135.

Gilpin, H.G.B. 1971. Collared lizards. Aquarist and Pondkeeper 36: 158-159.

Lipfert, J. 2004. Halsbandleguane - Die Gattung Crotaphytus. Natur und Tier-Verlag, Münster. 64 pp.

McGuire, J.A. 1996. Phylogenetic systematics of crotaphytid lizards (Reptilia: Iguania: Crotaphytidae). Bulletin of Carnegie Museum of Natural History 32: 1-143.

Montanucci, R.R. 1969. Remarks upon the Crotaphytus-Gambelia controversy (Sauria: Iguanidae). Herpetologica 25: 308-314.

Montanucci, R.R.; Axtell, R.W.; Dessauer, H.C. 1975. Evolutionary divergence among collared lizards (Crotaphytus), with comments on the status of Gambelia. Herpetologica 31(3): 336-347.

Rivers, I. la 1949. Crotaphytus as an insect collector. Herpetologica 5(6): 127.

Robison, W.G.; Tanner, W.W. 1962. A comparative study of the species of the genus Crotaphytus Holbrook (Iquanidae) [sic]. Brigham Young University Science Bulletin (Ser. 2) 2(1): 1-31.

Schumacher, R. 2002. Halsbandleguane. Lebensweise, Pflege, Zucht. Herpeton, Offenbach. 138 pp.

Sprackland, R.G. 1990. Collared Lizards. Tropical Fish Hobbyist 39(3): 104-110, 113-114, 117-119.

Sullivan, B.K.; Flowers, M.A. 1998. Large iguanid lizards of urban mountain preserves in northern Phoenix, Arizona. Herpetological Natural History 6(1): 13-22.

Weiner, N.J.; Smith, H.M. 1965. Comparative osteology and classifacation of the crotaphytiform lizards. American Midland Naturalist 73: 170-187.

Zoffer, D.J. 1995. Tiny tyrants. Tropical Fish Hobbyist 43(6): 116, 118-122, 124, 126, 128-129.

Crotaphytus antiquus

Axtell, R.W.; Webb, R.G. 1995. Two new Crotaphytus from southern Coahuila and the adjacent states of east-central Mexico. Bulletin of the Chicago Academy of Sciences 16(2): 1-15.

Gadsden-Esparza, H.; Ballesteros-Barrera, C.; Garza, O.H. de la; Castañeda, G.; García-de la Peña, C.; Lemos-Espinal, J.A. 2012. Effects of land-cover transformation and climate change on the distribution of two endemic lizards, Crotaphytus antiquus and Sceloporus cyanostictus, of northern Mexico. Journal of Arid Environments 83: 1-9.

Husak, J.F.; Lappin, A.K.; Fox, S.F.; Lemos-Espinal, J.A. 2006. Bite-force performance predicts dominance in male venerable collared lizards (Crotaphytus antiquus). Copeia 2006(2): 301-306.

Crotaphytus bicinctores

Alexander, B.; Staub, R.E.; Hansen, R.W. 2016. Natural history notes: Crotaphytus bicinctores (Great Basin Collared Lizard). Maximum elevation. Herpetological Review 47(2): 296-297.

Axtell, R.W. 1972. Hybridization between western collared lizards with a proposed taxonomic rearrangement. Copeia 1972(4): 707-727.

Dieckmann, M. 2012. [Experiences with the care of collared lizards in the field terrarium]. (In German). Reptilia (D) 17(94): 68-71.

Glaudas, X.; Heindl, A.L. 2007. Natural history notes: Crotaphytus bicinctores (Great Basin Collared Lizard). Diet. Herpetological Review 38(4): 453.

Goldberg, S.R.; Mahrdt, C.R. 2011. Reproduction in the Great Basin Collared Lizard, Crotaphytus bicinctores (Squamata: Crotaphytidae). Bulletin Southern California Academy of Sciences 110(3): 189-192.

Hollingsworth, B.D.; Gergus, E.W.A. 1997. Geographic distribution: Crotaphytus bicinctores (Mojave Black-collared Lizard). Herpetological Review 28(1): 49-50.

Lisle, H.F. de 1977. Our collared lizards. Herpetology 9(2): 23-24.

Montanucci, R.R. 1983. Natural hybridization between two species of Collared Lizards (Crotaphytus). Copeia 1983(1): 1-11.

Pope, V.; Munger, J.C. 2003. Threats to collared lizards in Idaho. Idaho Bureau of Land Management Technical Bulletin 03-4: 1-12.

Sanborn, S.R.; Loomis, R.B. 1979. Systematics and behaviour of collared lizards (Crotaphytus, Iguanidae) in southern California. Herpetologica 35(2): 101-106.

Shedd, J.D.; Goldfarb, J. 2013. Geographic distribution: Crotaphytus bicinctores (Great Basin Collared Lizard). Herpetological Review 44(2): 273.

Smith, N.M. 1974. Observation of voice in the western collared lizard, Crotaphytus collaris bicinctores. Great Basin Naturalist 34(4): 276.

Smith, N.M.; Tanner, W.W. 1972. Two new subspecies of Crotaphytus (Sauria: Iguanidae). Great Basin Naturalist 32(1): 25-34.

Crotaphytus collaris

Amarello, M.A.; Goode, M. 2004. Natural history notes: Crotalus tigris (Tiger Rattlesnake). Diet. Herpetological Review 35(2): 177.

Andre, J.B.; MacMahon, J.A. 1980. Reproduction in three sympatric lizard species from west-central Utah. Great Basin Naturalist 40(1): 68-72.

Angert, A.L.; Hutchison, D.; Glossip, D.; Losos, J.B. 2002. Microhabitat use and thermal biology of the collared lizard (Crotaphytus collaris collaris) and the fence lizard (Sceloporus undulatus hyacinthinus) in Missouri glades. Journal of Herpetology 36(1): 23-29.

Axtell, R.W.; Webb, R.G. 1995. Two new Crotaphytus from southern Coahuila and the adjacent states of east-central Mexico. Bulletin of the Chicago Academy of Sciences 16(2): 1-15.

Baird, T.A. 1999. Natural history notes: Crotaphytus collaris (Eastern Collared Lizard). Hibernaculum. Herpetological Review 30(4): 227.

Baird, T.A. 2000. Natural history notes: Crotaphytus collaris (Eastern Collared Lizard) and Diadophis punctatus (Ringneck Snake). Predator-prey. Herpetological Review 31(2): 104.

Baird, T.A. 2004. Natural history notes: Crotaphytus collaris (Eastern Collared Lizard). Homing after displacement. Herpetological Review 35(2): 167.

Baird, T.A. 2004. Reproductive coLoration in female collared lizards, Crotophytus [Crotaphytus] collaris, stimulates courtship by males. Herpetologica 60(3): 337-348.

Baird, T.A. 2008. A growth cost of experimentally induced conspicuous coLoration in first-year collared lizard males. Behavioral Ecology 19(3): 589-593.

Baird, T.A. 2008. Natural history notes: Crotaphytus collaris (Eastern Collared Lizard). Homing. Herpetological Review 39(1): 88.

Baird, T.A. 2009. Does experimentally induced conspicuous coLoration increase risk of predation and conspecific aggression in first-year collared lizard males? Herpetologica 65(1): 31-38.

Baird, T.A. 2013. Male collared lizards, Crotaphytus collaris (Sauria: Crotaphytidae), signal females by broadcasting visual displays. Biological Journal of the Linnean Society 108(3): 636-646.

Baird, T.A.; Acree, M.A.; Sloan, C.L. 1996. Age and gender-related differences in the social behavior and mating success of free-living Collared Lizards, Crotaphytus collaris. Copeia 1996(2): 336-347.

Baird, T.A.; Curtis, J.L. 2010. Context-dependent acquisition of territories by male collared lizards: the role of mortality. Behavioral Ecology 21(4): 753-758.

Baird, T.A.; Fox, S.F.; McCoy, J.K. 1997. Population differences in the roles of size and coloration in intra- and intersexual selection in the Collared Lizard, Crotaphytus collaris: influence of habitat and social organization. Behavioral Ecology 8(5): 506-517.

Baird, T.A.; Hranitz, J.M.; Timanus, D.K.; Schwartz, A.M. 2007. Behavioral attributes influence annual mating success more than morphological traits in male collared lizards. Behavioral Ecology 18(6): 1146-1154.

Baird, T.A.; McGee, A.A.; York, J.R. 2015. Responses to femoral gland secretions by visually adept male and female Collared Lizards. Ethology 121(5): 513-519.

Baird, T.A.; Sloan, C.L. 2003. Interpopulation variation in the social organization of female collared lizards, Crotaphytus collaris. Ethology 109(11): 879-894.

Baird, T.A.; Sloan, C.L.; Timanus, D.K. 2001. Intra- and inter-seasonal variation in the socio-spatial behavior of adult male collared lizards, Crotaphytus collaris (Reptilia, Crotaphytidae). Ethology 107(1): 15-32.

Baird, T.A.; Timanus, D.K. 1998. Social inhibition of territorial behaviour in yearling male Collared Lizards, Crotaphytus collaris. Animal Behaviour 56(4): 989-994.

Baird, T.A.; Timanus, D.K.; Sloan, C.L. 2003. Intra-and intersexual variation in social behavior: effects of ontogeny, phenotype, resources, and season. pp. 7-46. In: Fox, S.F.; McCoy, J.K.; Baird, T.A. (eds.). Lizard social behavior. Johns Hopkins University Press, Baltimore & London. 438 pp.

Ballinger, R.E.; Hipp, T.G. 1985. Reproduction in the Collared Lizard Crotaphytus collaris, in west central Texas. Copeia 1985(4): 976-980.

Banta, B.H. 1960. Notes on the feeding of the western collared lizard, Crotaphytus collaris baileyi Stejneger. Wasmann Journal of Biology 18: 309-311.

Best, T.L.; Pfaffenberger, G.S. 1987. Age and sexual variation in the diet of Collared Lizards (Crotaphytus collaris). Southwestern Naturalist 32(4): 415-426.

Blair, W.F.; Blair, A.P. 1941. Food habits of the collared lizard in northeastern Oklahoma. American Midland Naturalist 26(1): 230-232.

Blevins, E.; Wisely, S.M.; With, K.A. 2011. Historical processes and landscape context influence genetic structure in peripheral populations of the collared lizard (Crotaphytus collaris). Landscape Ecology 26(8): 1125-1136.

Blevins, E.; With, K.A. 2011. Landscape context matters: local habitat and landscape effects on the abundance and patch occupancy of collared lizards in managed grasslands. Landscape Ecology 26(6): 837-850.

Brandon, R.A.; Wilson, A.K. 1994. Geographic distribution: Crotaphytus collaris (Collared Lizard). USA: Illinois: Johnson Co. Herpetological Review 25(2): 76.

Braun, C.A.; Baird, T.A. 2018. Collared lizard juveniles use caudal displays while stalking prey. Journal of Herpetology 52(2): 113–115.

Braun, C.A.; Baird, T.A.; LeBeau, J.K. 2010. Influence of substrate temperature and directness of approach on the escape responses of juvenile collared lizards. Herpetologica 66(4): 418-424.

Brenner, F.J.; Brenner, P.E. 1973. The relationship between body fat and reproductive cycle in two species of lizards (Reptilia: Iguanidae). Proceedings of the Pennsylvania Academy of Science 47: 103-105.

Brewster, C.L.; Beaupre, S.J.; Willson, J.D. 2018. Habitat loss and local extinction: Linking population declines of Eastern Collared Lizards (Crotaphytus collaris) to habitat degradation in Ozark Glades. Journal of Herpetology 52(3): 352-360.

Brewster, C.L.; Beaupre, S.J.; Willson, J.D. 2018. Habitat loss and local extinction: Linking population declines of Eastern Collared Lizards (Crotaphytus collaris) to habitat degradation in Ozark Glades. Journal of Herpetology 52(3): 352-360.

Brewster, C.L.; Sikes, R.S.; Gifford, M.E. 2013. Quantifying the cost of thermoregulation: thermal and energetic constraints on growth rates in hatchling lizards. Functional Ecology 27(2): 490-497.

Brewster, C.L.; Sikes, R.S.; Gifford, M.E. 2014. Body size and growth of the Eastern Collared Lizard (Crotaphytus collaris) in Central Arkansas. Herpetological Review 45(4): 580-583.

Brisson, J.A.; Strasburg, J.L.; Templeton, A.R. 2003. Impact of fire management on the ecology of collared lizard (Crotaphytus collaris) populations living on the Ozark Plateau. Animal Conservation 6(3): 247-254.

Brown, R.P.; Roberts, N. 2008. Feeding state and selected body temperatures in the slow-worm (Anguis fragilis). Herpetological Journal 18(1): 59-62.

Buchwald, J. 2013. Ein Stück nordamerikanische Wüste im Wohnzimmer: Bau und Gestaltung eines Terrariums für Halsbandleguane. Draco 14(56): 34-43.

Bucklin, S.E.; Brinker, A.M. 2006. Geographic distribution: Crotaphytus collaris (Eastern Collared Lizard). Herpetological Review 37(2): 240.

Burt, C.E. 1928. Insect food of Kansas lizards with notes on feeding habits. Journal Kansas Ent. Soc. 1: 50-68.

Burt, C.E. 1928. The synonymy, variation, and distribution of the collared lizard, Crotaphytus collaris (Say.). Occasional Papers of the Museum of Zoology University of Michigan 196: 1-19.

Burt, C.E. 1929. The sexual dimorphism of the collared lizard, Crotaphytus collaris. Papers of the Michigan Academy of Science, Arts and Letters 10: 417-421.

Chrapliwy, P.S.; Fugler, C.M. 1955. Amphibians and reptiles collected in Mexico in the summer of 1953. Herpetologica 11: 121-128.

Clark, H. 1946. Incubation and respiration of eggs of Crotaphytus c. collaris (Say). Herpetologica 3(4): 136-139.

Cole, C.J. 1966. Femoral glands of the lizard, Crotaphytus collaris. Journal of Morphology 118: 119-136.

Cooper, W.C.; Ferguson, G.W. 1972. Steroids and color change during gravidity in the lizard Crotaphytus collaris. General Comp. Endocr. 18(1): 69-72.

Cooper, W.E.; DePerno, C.S.; Fox, S.F. 1996. Prey chemical discrimination and strike-induced chemosensory searching in lizards: their absence in a crotaphytid lizard (Crotaphytus collaris) and a proposal for research in zoos. Zoo Biology 15(3): 239-253.

Curtis, J.L.; Baird, T.A. 2007. Natural history notes: Crotaphytus collaris (Eastern Collared Lizard). Communal hibernation; dispersal. Herpetological Review 38(1): 76-77.

Dawson, W.R.; Templeton, J.R. 1963. Physiological responses to temperature in the lizard, Crotaphytus coilaris. Physiological Zoology 36: 219-236.

Delleman, K. 1959. Nog eens: Crotaphytus collaris en Phrynosoma cornutum. Lacerta 17: 51-52.

Dieckmann, M. 2012. [Experiences with the care of collared lizards in the field terrarium]. (In German). Reptilia (D) 17(94): 68-71.

Dieckmann, M. 2013. [Profile of Crotaphytus collaris (SAY, 1823)]. (In German). Iguana Rundschreiben 26(2): 16-19.

Diener, R.A. 1957. A western hognose snake eats a collared lizard. Herpetologica 13: 122.

Dowling, H.G. 1956. Geographic relations of Ozarkian amphibians and reptiles. Southwestern Naturalist 1(4): 174-189.

Dundee, H.A. 1996. 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(2): 75-89.

Eifler, D.; Fogarty, S. 2006. Perch selection by post-breeding female collared lizards (Crotaphytus collaris). Amphibia-Reptilia 27(3): 461-463.

Etheridge, R.E. 1960. Additional notes on the lizards of the Cragin Quarry fauna. Papers of the Michigan Academy of Science, Arts and Letters 45: 113-117.

Ferguson, G.W. 1976. Color change and reproductive cycling in female collared lizards (Crotaphytus collaris). Copeia 3: 491-494.

Firth, B.T.; Turner, J.S.; Ralph, C.L. 1989. Thermoregulatory behaviour in two species of iquanid lizards (Crotaphytus collaris and Sauromalus obesus): diel variation and the effect of pinealectomy. Journal of Comparative Physiology B Biochemical Systemic and Environmental Physiology 159(1): 13-20.

Fitch, H.S. 1956. An ecological study of the collared lizard (Crotaphytus collaris). University of Kansas Publications of the Museum of Natural Hist 8(3): 213-274.

Fitch, H.S. 2003. A comparative study of loss and regeneration of lizard tails. Journal of Herpetology 37(2): 395-399.

Fitch, H.S.; Tanner, W.W. 1951. Remarks concerning the systematics of the collared lizard (Crotaphytus collaris), with a description of a new subspecies. Transactions of the Kansas Academy of Sciences 54: 548-559.

Flowers, M.A.; Sullivan, B.K. 1999. Geographic distribution: Crotaphytus collaris (Eastern Collared Lizard). Herpetological Review 30(3): 173.

Frierson, L.S. 1927. Crotaphytus collaris collaris at Taylor Town, Louisiana. Copeia 1927(165): 113-114.

Gluesing, E.A. 1983. Collared Lizard predation: the effects of conspicuous morphology and movement. Copeia 1983(3): 835-837.

Greenberg, B. 1945. Notes on the social behavior of the collared lizard. Copeia 1945: 225-230.

Harling, R. 2007. Successful keeping and breeding - the collared lizard (Crotaphytus collaris). Herpetological Bulletin 100: 3-7.

Hathaway, L.M. 1970. Microdistribution and behaviour of the collared lizard with special reference to structure. Dissertation Abstracts International (B) 30: 4504.

Hranitz, J.M.; Baird, T.A. 2000. Effective population size and genetic structure of a population of collared lizards, Crotaphytus collaris, in central Oklahoma. Copeia 2000(3): 786-791.

Husak, J.F. 2004. Signal use by collared lizards, Crotaphytus collaris: the effects of familiarity and threat. Behavioral Ecology and Sociobiology 55(6): 602-607.

Husak, J.F. 2006. Do female collared lizards change field use of maximal sprint speed capacity when gravid? Oecologia (Berlin) 150(2): 339-343.

Husak, J.F. 2006. Does speed help you survive? A test with collared lizards of different ages. Functional Ecology 20(1): 174-179.

Husak, J.F. 2006. Does survival depend on how fast you can run or how fast you do run? Functional Ecology 20(6): 1080-1086.

Husak, J.F.; Ackland, E.N. 2000. Natural history notes: Opheodrys aestivus (Rough Green Snake). Predation. Herpetological Review 31(1): 47.

Husak, J.F.; Fox, S.F. 2003. Adult male collared lizards, Crotaphytus collaris, increase aggression towards displaced neighbours. Animal Behaviour 65(2): 391-396.

Husak, J.F.; Fox, S.F. 2003. Spatial organization and the dear enemy phenomenon in adult female collared lizards, Crotaphytus collaris. Journal of Herpetology 37(1): 211-215.

Husak, J.F.; Fox, S.F. 2006. Field use of maximal sprint speed by collared lizards (Crotaphytus collaris): compensation and sexual selection. Evolution 60(9): 1888-1895.

Husak, J.F.; Fox, S.F.; Bussche, R.A. van den 2008. Faster male lizards are better defenders not sneakers. Animal Behaviour 75(5): 1725-1730.

Husak, J.F.; Fox, S.F.; Lovern, M.B.; Bussche, R.A. van den 2006. Faster lizards sire more offspring: sexual selection on whole-animal performance. Evolution 60(10): 2122-2130.

Husak, J.F.; Lappin, A.K.; Bussche, R.A. van den 2009. The fitness advantage of a high-performance weapon. Biological Journal of the Linnean Society 96(4): 840-845.

Husak, J.F.; Macedonia, J.M.; Fox, S.F.; Sauceda, R.C. 2006. Predation cost of conspicuous male coLoration in collared lizards (Crotaphytus collaris): an experimental test using clay-covered model lizards. Ethology 112(6): 572-580.

Husak, J.F.; McCoy, J.K. 2000. Diet composition of the collared lizard (Crotaphytus collaris) in west-central Texas. Texas Journal of Science 52(2): 93-100.

Husak, J.F.; McCoy, J.K.; Fox, S.F.; Baird, T.A. 2004. Is coloration of juvenile male collared lizards (Crotaphytus collaris) female mimicry?: an experimental test. Journal of Herpetology 38(1): 156-160.

Husak, J.F.; Rouse, M.N. 2006. Population variation in escape behavior and limb morphology of collared lizards (Crotaphytus collaris) in Oklahoma. Herpetologica 62(2): 156-163.

Hutchinson, D.W.; Templeton, A.R. 2000. Correlation of pairwise genetic and geographic distance measures: inferring the relative influences of gene flow and drift on the distribution of genetic variability. Evolution 53(6): 1898-1914.

Krohn, A.R.; Rosenblum, E.B. 2016. Geographic color variation and physiological color change in Eastern Collared Lizards (Crotaphytus collaris) from southern New Mexico, USA. Herpetologica 72(4): 318-323.

Lappin, A.K. 2002. Natural history notes: Crotaphytus collaris (Eastern Collared Lizard). Caudophagy. Herpetological Review 33(4): 305-306.

Lappin, A.K.; Husak, J.F. 2005. Weapon performance, not size, determines mating success and potential reproductive output in the collared lizard (Crotaphytus collaris). American Naturalist 166(3): 426-436.

Legler, J.M.; Fitch, H.S. 1957. Observations on hibernation and nests of the collared lizard, Crotaphytus collaris. Copeia 1957: 305-306.

Lemos-Espinal, J.A.; Smith, G.R.; Woolrich-Pina, G.A. 2009. Aspects of the natural history of Crotaphytus collaris from Chihuahua and Coahuila, Mexico. Journal of Kansas Herpetology 31: 18-20.

Macedonia, J.M.; Brandt, Y.; Clark, D.L. 2002. Sexual dichromatism and differential conspicuousness in two populations of the common collared lizard (Crotaphytus collaris) from Utah and New Mexico, USA. Biological Journal of the Linnean Society 77(1): 67-85.

Macedonia, J.M.; Husak, J.F.; Brandt, Y.M.; Lappin, A.K.; Baird, T.A. 2004. Sexual dichromatism and color conspicuousness in three populations of collared lizards (Crotaphytus collaris) from Oklahoma. Journal of Herpetology 38(3): 340-354.

McAllister, C.T. 1983. Aquatic behavior of Collared Lizards, Crotaphytus collaris collaris, from Arkansas. Herpetological Review 14(1): 11.

McAllister, C.T. 1983. Life history notes: Crotaphytus collaris collaris (Eastern Collared Lizard). Hibernacula. Herpetological Review 14(3): 73-74.

McAllister, C.T. 1984. Life history notes: Crotaphytus collaris collaris (Eastern Collared Lizard). Reproduction. Herpetological Review 15(2): 48.

McAllister, C.T. 1985. Food habits and feeding behavior of Crotaphytus collaris collaris (Iguanidae) from Arkansas and Missouri. Southwestern Naturalist 30(4): 597-600.

McAllister, C.T. 1987. Life history notes: Crotaphytus collaris collaris (Eastern Collared Lizard). Seasonal activity. Herpetological Review 18(1): 15.

McAllister, C.T.; McAllister, J.T. 2003. Geographic distribution: Crotaphytus collaris collaris (Eastern Collared Lizard). Herpetological Review 34(4): 384.

McAllister, C.T.; Tabor, S.P. 1985. Life history notes: Gastrophryne olivacea (Great Plains Narrowmouth Toad). Coexistence. Herpetological Review 16(4): 109.

McAllister, C.T.; Trauth, S.E. 1982. An instance of the Eastern Collared Lizard Crotaphytus collaris collaris (Sauria: Iguanidae) feeding on Sigmodon hispidus (Rodentia: Cricetidae). Southwestern Naturalist 27(3): 358-359.

McCoy, C.J. 1958. Daily activity of some Oklahoma lizards. Trimon. Rep. Ohio herpet. Soc. 1(3): 12.

McCoy, J.K.; Baird, T.A.; Fox, S.F. 2003. Sexual selection, social behavior, and the environmental potential for polygyny. pp. 149-171. In: Fox, S.F.; McCoy, J.K.; Baird, T.A. (eds.). Lizard social behavior. Johns Hopkins University Press, Baltimore & London. 438 pp.

McCoy, J.K.; Fox, S.F.; Baird, T.A. 1994. Geographic variation in sexual dimorphism in the Collared Lizard, Crotaphytus collaris (Sauria: Crotaphytidae). Southwestern Naturalist 39(4): 328-335.

McCoy, J.K.; Harmon, H.J.; Baird, T.A.; Fox, S.F. 1997. Geographic variation in sexual dichromatism in the Collared Lizard, Crotaphytus collaris (Sauria: Crotaphytidae). Copeia 1997(3): 565-571.

Menke, S.B. 2003. Lizard community structure across a grassland: Creosote bush ecotone in the Chihuahuan Desert. Canadian Journal of Zoology 81(11): 1829-1838.

Meshaka, W.E.; Trauth, S.E.; Talbott, K.M.; Schmidt, C.J. 2012. Reproductive characteristics and sexual maturation of the Eastern Collared Lizard, Crotaphytus collaris (Say, 1823), at the northern edge of its geographic range. Collinsorum 1(2/3): 9-14.

Meyers, J.J.; Irschick, D.J. 2015. Does whole-organism performance constrain resource use? A community test with desert lizards. Biological Journal of the Linnean Society 115(4): 859-868.

Mielke, E. 2002. Crotaphytus collaris (Eastern Collared Lizard). Journal of Kansas Herpetology 4: 14.

Montanucci, R.R. 1974. Convergence, polymorphism or introgressive hybridization? An analysis of interaction between Crotaphylus collaris and C. reticulatus (Sauria: Iguanidae). Copeia 1974(1): 87-101.

Montanucci, R.R. 1983. Natural hybridization between two species of Collared Lizards (Crotaphytus). Copeia 1983(1): 1-11.

Oldfield, B.; Keyler, D. 2011. Natural history notes: Crotaphytus collaris (Eastern Collared Lizard). Communal brumation. Herpetological Review 42(4): 600.

Ostman, O.; Griffin, N.W.; Strasburg, J.L.; Brisson, J.A.; Templeton, A.R.; Knight, T.M.; Chase, J.M. 2007. Habitat area affects arthropod communities directly and indirectly through top predators. Ecography 30(3): 359-366.

Parmley, D. 1982. Food items of roadrunners from Palo Pinto County, north central Texas. Texas Journal of Science 34(1): 94-95.

Peterson, C.C.; Husak, J.F. 2006. Locomotor performance and sexual selection: Individual variation in sprint speed of collared lizards (Crotaphytus collaris). Copeia 2006(2): 216-224.

Punzo, F. 2008. Chemosensory recognition of the marbled whiptail lizard, Aspidoscelis marmorata (Squamata, Teiidae) to odors of sympatric lizards (Crotophytus collaris, Coleonyx brevis, Eumeces obsoletus and Uta stansburiana) that represent different predation risk. Journal of Environmental Biology 29(1): 57-61.

Rheubert, J.L.; Trauth, S.E. 2013. Reappearance of the Eastern Collared Lizard (Crotaphytus collaris) along shorelines of Bull Shoals Lake in northern Arkansas. Journal of the Arkansas Academy of Science 67: 209-210.

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Trauth, S.E. 1989. Distributional survey of the Eastern Collared Lizard, Crotaphytus collaris collaris (Squamata: Iguanidae), within the Arkansas River Valley of Arkansas. Arkansas Academy of Science Proceedings 43: 101-104.

Trauth, S.E. 2011. Rapid reservoir inundation causes complete extirpation of the Eastern Collared Lizard (Crotaphytus collaris) along the shoreline of Bull Shoals Lake in northern Arkansas. Journal of the Arkansas Academy of Science 65: 133-137.

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Crotaphytus dickersonae

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Macedonia, J.M.; Lappin, A.K.; Loew, E.R.; McGuire, J.A.; Hamilton, P.S.; Plasman, M.; Brandt, Y.; Lemos-Espinal, J.A.; Kemp, D.J. 2009. Conspicuousness of Dickerson's collared lizard (Crotaphytus dickersonae) through the eyes of conspecifics and predators. Biological Journal of the Linnean Society 97(4): 749-765.

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Plasman, M.; Reynoso, V.H.; Nicolas, L.; Torres, R. 2015. Multiple colour traits signal performance and immune response in the Dickerson's Collared Lizard Crotaphytus dickersonae. Behavioral Ecology and Sociobiology 69(5): 765-775.

Crotaphytus grismeri

McGuire, J.A. 1994. A new species of Collared Lizard (Iguania: Crotaphytidae) from northeastern Baja California, Mexico. Herpetologica 50(4): 438-450.

Crotaphytus insularis

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Moehn, L. 1976. The effect of sunlight on a despotism in the desert collared lizard, Crotaphytus insularis (Reptilia, Lacertilia, Iguanidae). Journal of Herpetology 10(3): 259-261.

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Crotaphytus nebrius

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Crotaphytus reticulatus

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Smith, P.W.; Burger, W.L. 1950. Herpetological results of the University of Illinois Field Expedition, Spring 1949. III. Sauria. Transactions of the Kansas Academy of Sciences 53: 165-175.

Werler, J.E. 1951. Miscellaneous notes on the eggs and young of Texan and Mexican reptiles. Zoologica (New York) 36: 37-48.

Crotaphytus vestigium

Etheridge, R.E. 2001. Comments on the proposed conservation of the name Crotophytus [Crotaphytus] vestigium Smith & Tanner, 1972 (Reptilia, Squamata). Bulletin of Zoological Nomenclature 58(1): 60.

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Lisle, H.F. de 1977. Our collared lizards. Herpetology 9(2): 23-24.

McGuire, J.A. 1991. Geographic distribution: Crotaphytus insularis vestigium (Baja Black-Collared Lizard). Herpetological Review 22(4): 135.

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Sanborn, S.R.; Loomis, R.B. 1979. Systematics and behaviour of collared lizards (Crotaphytus, Iguanidae) in southern California. Herpetologica 35(2): 101-106.

Savage, J.M.; McGuire, J.A.; Etheridge, R.E. 2001. Comments on the proposed conservation of the name Crotophytus [Crotaphytus] vestigium Smith & Tanner, 1972 (Reptilia, Squamata). Bulletin of Zoological Nomenclature 58(1): 59.

Smith, N.M.; Tanner, W.W. 1972. Two new subspecies of Crotaphytus (Sauria: Iguanidae). Great Basin Naturalist 32(1): 25-34.

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