.::::: Lizards of the World - Iguania - Crotaphytus :::::.
Last update: 16 July, 2004

This genus contains a group of active sunloving lizards found in southern USA and northern Mexico.
Crotaphytus Holbrook, 1842
 
Crotaphytus antiquus Axtell & Webb, 1995
 
Distribution: Mexico.
Crotaphytus bicinctores Smith & Tanner, 1972
Crotaphytus insularis bicinctores Smith & Tanner, 1972
Crotaphytus collaris bicinctores Smith & Tanner, 1972
Distribution: USA.
Crotaphytus collaris (Say, 1823)

  • collaris (Say, 1823)
    Agama collaris Say, 1823
  • baileyi Stejneger, 1890
    Crotaphytus baileyi Stejneger, 1890
    Crotaphytus collaris auriceps Fitch & Tanner, 1951
  • fuscus Ingram & Tanner, 1971
    Crotaphytus collaris melanomaculatus Axtell & Webb, 1995
    • Distribution: Mexico (collaris, fuscus) and USA (baileyi, collaris, fuscus).
    Crotaphytus dickersonae Schmidt, 1922
    Crotaphytus collaris dickersonae Schmidt, 1922
    Distribution: Mexico.
    Crotaphytus grismeri McGuire, 1994
     
    Distribution: Mexico.
    Crotaphytus insularis Van Denburgh & Slevin, 1921
    Crotaphytus insularis insularis Van Denburgh & Slevin, 1921
    Distribution: Mexico.
    Crotaphytus nebrius Axtell & Montanucci, 1977
    Crotaphytus collaris nebrius Axtell & Montanucci, 1977
    Distribution: Mexico & USA.
    Crotaphytus reticulatus Baird, 1858
     
    Distribution: Mexico and USA.
    Crotaphytus vestigium Smith & Tanner, 1972
    Crotaphytus insularis vestigium Smith & Tanner, 1972
    Distribution: Mexico and USA.
    Literature
    Angert, A.L., D. Hutchison, D. Glossip & J.B. Losos. 2002. Microhabitat Use and Thermal Biology of the Collared Lizard (Crotaphytus collaris collaris) and the Fence Lizard (Sceloporus undulatus hyacinthinus) in Missouri Glades. J. Herpetol., 36(1): 23-29.
    Anonymous. 2002. Opinion 2014 (Case 3136) Crotaphytus vestigium Smith & Tanner 1972 (Reptilia, Squamata): specific name conserved. Bull. Zool. Nomen., 59(3): 228-229.
    Axtell, R.W. 1972. Hybridization between western collared lizards with a proposed taxonomic rearrangement. Copeia, 1972(4): 707-727.
    Axtell, R.W. 1989. Interpretive Atlas of Texas Lizards. Crotaphytus collaris. Self publ. East Alton, Illinois, 8: 1-38.
    Axtell, R.W. & R.R. Montanucci. 1977. Crotaphytus collaris from the Eastern Sonoran Desert: Description of a Previously Unrecognized Geographic Race. Nat. Hist. Misc., 201: 1-8.
    Axtell, R.W. & R.G. Webb. 1995. Two new Crotaphytus from Southern Coahuila and the adjacent states of east-central Mexico. Bull. Chicago Acad. Sci., 16(2): 1-15.
    Baird, S.F. 1858(1859). Description of New Genera and Species of North American Lizards in the Museum of the Smithsonian Institution. Proc. Acad. Nat. Sci. Philadelphia, 1858: 253-256.
    Baird, T. 1999. Crotaphytus collaris. Hibernaculum. Herpetol. Rev., 30(4): 227.
    Baird, T.A. 2000. Crotaphytus collaris and Diadophis punctatus. Predator-Prey. Herpetol. Rev., 31(2): 104.
    Baird, T.A., M.A. Acreee & C.L. Sloan. 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., C.L. Sloan & D.K. Timanus. 2001. Intra- and inter-seasonal variation in the socio-spatial behavior of adult male collared lizards, Crotaphytus collaris (Reptilia, Crotaphytidae). Ethology, 107: 15-32.
    Banta, B.H. 1960. Notes on the Feeding of the Western Collared Lizard, Crotaphytus collaris baileyi Stejneger. Wasmann J. Biol., 18(2): 309-311.
    Behler, J.L. & F.W. King. 1979. The Audubon Society Field Guide to North American Reptiles & Amphibians. Alfred A. Knopf, New York, 743 pp.
    Best, T.L. & G.S. Pfaffenberger. 1987. Age and sexual variation in the diet of collared Lizards (Crotaphytus collaris). Southwest. Nat., 32(4): 415-426.
    Blair, W.F. & A.P. Blair. 1941. Food Habits of the Collared Lizard in Northeastern Oklahoma. Amer. Midl. Natur., 26(1): 230-232.
    Briegoos, M. 1998. Verzorging en kweek van de Halsbandleguaan (Crotaphytus collaris). Lacerta, 57(1): 19-25.
    Brown, B.C. 1942. Notes on Crotaphytus reticulatus. Copeia, 1942(3): 176.
    Burt, C.E. 1928. The synonymy, variation, and distribution of the collard lizard, Crotaphytus collaris (Say). Occ. Pap. Mus. Zool., Univ. Michigan, 196: 1-19.
    Burt, C.E. 1928. The sexual dimorphism of the collared lizard, Crotaphytus collaris. Pap. Michigan Acad. Sci., Art and Letters, 10: 417-421.
    Cooper, W.E., Jr. & G.W. Ferguson. 1972. Relative Effectiveness of Progesterone and Testosterone as Inductors of Orange Spotting in Female Collared Lizards. Herpetologica, 28(1): 64-65.
    Davis, D.D. 1934. The collared Lizard, a laboratory guide. The Macmillian Company, New York.
    Fitch, H.S. 1956. An ecological study of the Collared Lizard (Crotaphytus collaris). Univ. Kansas Publ. Mus. Nat. Hist., 8(3): 213-274.
    Fitch, H.S. 2003. A Comparative Study of Loss and Regeneration of Lizard Tails. J. Herpetol., 37(2): 395-399.
    Fitch, H.S. & W.W. Tanner. 1951. Remarks Concerning the Systematics of the Collared Lizard, (Crotaphytus collaris), with a Description of a New Subspecies. Trans. Kansas Acad. Sci., 54(4): 548-559.
    Flowers, M.A. & B.K. Sullivan. 1999. Geographic Distribution. Crotaphytus collaris. Herpetol. Rev., 30(3): 173.
    Fox, S.F. & T.A. Baird. 1992. The dear enemy phenomenon in the collared lizard, Crotaphytus collaris, with a cautionary note on experimental methodology. Anim. Behav., 44: 780-782.
    Frost, D.R. & R. Etheridge. 1989. A phylogenetic analysis and taxonomy of iguanian lizards (Reptilia: Squamata). Univ. Kansas Mus. Nat. Hist. Misc. Publ., 81: 1-65.
    Holbrook, J.E. 1842. North American Herpetology; or, a Description of the Reptiles Inhabiting the United States. J. Dobson, Philadelphai, Pennsylvania, 2: 1-142.
    Hollingsworth, B.D. & E.W.A. Gergus. 1997. Geographic Distribution. Crotaphytus bicinctores. Herpetol. Rev., 28(1): 49-50.
    Hollingsworth, B.D. & E.W.A. Gergus. 1997. Geographic Distribution. Crotaphytus nebrius. Herpetol. Rev., 28(1): 50.
    Husak, J.F. 2001. Neighbor Assessment and the Dear Enemy Phenomenon in Collared Lizards, Crotaphytus collaris. Unpubl. ms. thesis, Oklahoma State Univ., Stillwater.
    Husak, J.F. & S.F. Fox. 2003. Spatial Organization and the Dear Enemy Phenomenon in Adult Female Collared Lizards, Crotaphytus collaris. J. Herpetol., 37(1): 211-215.
    Hutchison, D.W., S.T. Malcomber & L.S. Pletscher. 1999. A Multidisciplinary Investigation of the Applicability of the Pleistocene Herpetofaunal Stability Model to Collared Lizards (Crotaphytus collaris). Herpetol. Monogr., 13: 81-141.
    Højlund, I. 1986. Halsbåndsleguan (Crotaphytus collaris). NHF, 29(6): 192-194.
    Højlund, I. 1987. Crotaphytus collaris. Naturen og Hjemmet, (1): 14.
    Ingram, W., III & W.W. Tanner. 1971. A Taxonomic Study of Crotaphytus collaris between the Rio Grande and Colorado Rivers. Brigham Young Univ. Sci. Bull, 13(2): 1-29.
    Jensen, K.L. 1976. Halsbåndleguan (Crotaphytus collaris). NHF, 19(3): 46-48.
    Jones, T.A. 1998. Captive Care and Breeding of Collared Lizards. The Vivarium, 9(6): 41-43, 50-52.
    Klein, T. 1951. Notes on the feeding habits of Crotaphytus reticulatus. Herpetologica, 7: 200.
    Legler, J.M. & H.S. Fitch. 1957. Observations on hibernation and nests of the Collared Lizards, Crotaphytus collaris. Copeia, 1957(4): 305-307.
    McAllister, C.T. 1984. Crotaphytus collaris collaris. Reproduction. Herpetol. Rev., 15(2): 48.
    McCoy, J.K., S.F. Fox & T.A. Baird. 1994. Geographic variation in sexual dimorphism in the collared lizard Crotaphytus collaris (Sauria: Crotaphytidae). Southwest. Nat., 39(4): 328-335.
    McCoy, J.K., H.J. Harmon, T.A. Baird & S.F. Fox. 1997. Geographic variation in sexual dichromatism in the collard lizard, Crotaphytus collaris (Sauria: Crotaphytidae). Copeia, 1997(3): 565-571.
    McGuire, J.A. 1994. A New Species of Collared Lizard (Iguania: Crotaphytidae) from Northeastern Baja California, México. Herpetologica, 50(4): 438-450.
    McGuire, J.A. 1996. Phylogenetic systematics of crotaphytid lizards (Reptilia: Iguania: Crotaphytidae). Bull. Carnegie Mus. Nat. Hist., 32: 1-142.
    McGuire, J.A. 2000. Crotaphytus vestigium Smith & Tanner 1972 (Reptilia: Squamata): proposed conservation of the specific name [Case 3136]. Bull. Zool. Nomencl., 57(3): 158-161.
    Michelsen, J. 1995. Pasning af halsbåndsleguaner Crotaphytus collaris og Crotaphytus insularis, med opdræt af C. collaris. NHF, 38(2): 14-19.
    Mocquard, M.F. 1899. Contribution à la faune herpetologique de la Basse-Californie. Nouv. Arch. Mus. d'Hist. Nat., sér 4, 1: 297-344.
    Moehn, L.D. 1976. The Effect of Sunlight on a Despotism in the Desert Collared Lizard, Crotaphytus insularis (Reptilia, Lacertilia, Iguanidae). J. Herpetol., 10(3): 259-261.
    Montanucci, R.R. 1971. Ecological and distributional data on Crotaphytus reticulatus (Sauria: Iguanidae). Herpetologica, 27(2): 183-197.
    Montanucci, R.R. 1974. Convergence, polymorphism or introgressive hybridization? An analysis of interaction between Crotaphytus collaris and C. reticulatus (Sauria: Iguanidae). Copeia, 1974(1): 87-101.
    Montanucci, R.R. 1976. Crotaphytus reticulatus. Cat. Amer. Amphib. Rept., 185: 1-2.
    Montanucci, R.R. 1983. Natural Hybridization between Two Species of Collared Lizards (Crotaphytus). Copeia, 1983(1): 1-11.
    Montanucci, R.R., R.W. Axtell & H.C. Dessauer. 1975. Evolutionary divergence among collared lizards (Crotaphytus), with comments on the status of Gambelia. Herpetologica, 31(3): 336-347.
    Pabst, H. 1989. De kweek van halsbandleguanen (Crotaphytus collaris baileyi). Lacerta, 47(6): 180-182.
    Patterson, S. & J. Lemos-Espinal. 2000. Preliminary observations on the care and breeding of Crotaphytus dickersonae (Iguania: Crotaphytidae). Bull. Chicago Herpetol. Soc., 35(9): 201-204.
    Riedel, F. 1993. Die erfolgreiche und kontinuierliche Haltung und Zucht des Halsbandleguans Crotaphytus collaris fuscis. Iguana Rundschreiben, 6(2): 19-24.
    Riedel, F. 1994. Die erfolgreiche und kontinuierliche Haltung und Zucht des Halsbandleguans Crotaphytus collaris fuscus. Elaphe, 2(1): 27-30.
    Rostker, M. 1983. An Experimental Study of Collared Lizards: Effect of Habitat and Male Quality on Lizard Fitness. Unpubl. Ph.D. diss., Oklahoma State Univ., Stillwater.
    Sanborn, S.R. & R.B. Loomis. 1979. Systematics and behavior of collared lizards (Crotaphytus collaris) in southern California. Herpetologica, 35: 101-106.
    Savage, J.M., J.A. McGuire & R. Etheridge. 2001. On the proposed conservation of the name Crotaphytus vestigium Smith & Tanner, 1972 (Reptilia, Squamata). Bull. Zool. Nomencl., 58(1): 59.
    Say, T. 1823. In: Long's account of an expedition from Pittsburgh to the Rocky Mountains, performed in the years 1819 and '20. H.C. Cory & I. Lea, Philadelphai, 2: 252.
    Schmidt, A. 1989. Halsbåndsleguan (Crotaphytus collaris). NHF, 32(8): 291-295.
    Schumacher, R.A.H. 1998. Die kontinuierliche Zucht des Halsbandleguans Crotaphytus collaris (Say, 1823) im Terrarium, mit Hinweisen zur Unterartproblematik. Salamandra, 34(3): 193-218.
    Schumacher, R. 2002. Halsbandleguane - Lebensweise, Pflege, Zucht. Herpeton Verlag, 140 pp.
    Sloan, C.L. & T.A. Baird. 1999. Is Heightened Post-Ovipositional Aggression in Female Collared Lizards (Crotaphytus collaris) Nest Defense? Herpetologica, 55(4): 516-522.
    Smith, D.D. 1983. Crotaphytus collaris. Reproduction. Herpetol. Rev., 14(2): 46.
    Smith, N.M. & W.W. Tanner. 1972. Two new subspecies of Crotaphytus (Sauria: Iguanidae). Great Basin Nat., 32(1): 25-34.
    Stejneger, L. 1890. Annotated List of Reptiles and Batrachians Collected by Dr. C. Hart Merriam and Vernon Bailey on the San Francisco Mountain Plateau and Desert of the Little Colorado, Arizona, with Descriptions of New Species. N. Amer. Fauna, 3: 103-118.
    Sugerman, R.A. & R.A. Hacker. 1980. Observer Effects on Collared Lizards. J. Herpetol., 14(2): 188-190.
    Trauth, S.E. 1978. Ovarian Cycle of Crotaphytus collaris (Reptilia, Lacertilia, Iguanidae) from Arkansas with Emphasis on Corpora Albicantia, Follicular Atresia, and Reproductive Potential. J. Herpetol., 12(4): 461-470.
    Van Denburgh, J. & J.R. Slevin. 1921. Preliminary diagnoses of new species of reptiles from islands in the Gulf of California, Mexico. Proc. Calif. Acad. Sci., 11: 95-98.
    Walker, J.M. 1980. Accessory Femoral Pores in a Colony of the Collared Lizard, Crotaphytus collaris in Texas. J. Herpetol., 14(4): 417-418.
    Wells, W. 1997. Collared lizards of the genus Crotaphytus. Reptiles Mag., 5(4): 48-68.
    Yedlin, I.N. & G.W. Ferguson. 1973. Variations in aggressiveness of free-living male and female collared lizards, Crotaphytus collaris. Herpetologica, 29: 268-275.
    Yoshioka, J.H. 1996. The Genetic Structure of Oklahoma Populations of the Collared Lizards, Crotaphytus collaris. Unpubl. ms. thesis, Oklahoma State Univ., Stillwater.