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Crotaphytus reticulatus BAIRD, 1858

IUCN Red List - Crotaphytus reticulatus - Vulnerable, VU

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Higher TaxaCrotaphytidae, Iguania, Sauria, Squamata (lizards)
Common NamesE: Reticulate Collared Lizard
S: reticulada de Collar 
SynonymCrotaphytus reticulatus BAIRD 1858: 253
Crotaphytus reticulatus — COPE 1900: 254
Crotaphytus reticulatus — SMITH & TAYLOR 1950: 93
Crotaphytus reticulatus — CONANT & COLLINS 1991: 97
Crotaphytus reticulatus — LINER 1994
Crotaphytus reticulatus — LINER 2007
Crotaphytus reticulatus — HEIMES 2022 
DistributionUSA (S Texas),
Mexico (NE Coahuila, N/SE Nuevo Leon, NW Tamaulipas)

Type locality: Laredo and Ringgold Barracks, Texas. Restricted to Laredo by SMITH & TAYLOR 1950.  
TypesSyntypes: USNM 2692 and 2731 
DiagnosisDiagnosis: Crotaphytus reticulatus can be distinguished from all other species of Crotaphytusexcept C. antiquus by the presence of an adult color pattern consisting of white reticulations, some of which enclose black pigmentation, and the presence of jet black femoral pores in males. It can be distinguished from C. antiquw by the dorsal coloration of golden tan rather than dark brown and by the presence of black pigments in only a subset of the dorsal body reticulations rather than in all or nearly all of them. It can be further distinguished from C. collaris by the presence of dark brown or black pigmentation in the gular fold (= ventrally complete anterior collar) in adult males. It can be further distinguished from C. antiquus, C. nebrius, C. dickersonae, C. grismeri, C. bicinctores, C. insularis, and C. vestigiurn by the absence in adult males of small or large dark brown or black inguinal patches. It may be further distinguished from C. dickersonae. C. grismeri, C.bicinctores, C.insularis, and C. vestigium by the absence in adult males of a strongly laterally compressed tail, a white or off-white dorsal caudal stripe, and a pale tan or white patternless region on the dorsal surface of the head. It may be further distinguished from C.grismeri, C. bicinctores, C.insularis, and C.vestigium by the presence of black oral melanin (McGuire 1996: 92). 
CommentConsidered as of uncertain status by BOULENGER (1885: 203). 
EtymologyFrom the Latin reticulatus, made like a net. In reference to the net-like dorsal and gular pattern of white reticulations present in this species. 
  • Baird, S.F. 1859. Description of new genera and species of North American lizards in the museum of the Smithsonian Institution. Proc. Acad. Nat. Sci. Philadelphia 10: 253-256 [1858] - get paper here
  • Brown, Bryce C. 1942. Notes on Crotaphytus reticulatus. Copeia 1942 (3): 176 - get paper here
  • 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 - get paper here
  • Cope, E.D. 1900. The crocodilians, lizards and snakes of North America. Ann. Rep. U.S. Natl. Mus. 1898: 153-1270 - get paper here
  • Crother, B. I. (ed.) 2012. Standard Common and Current Scientific Names for North American Amphibians, Turtles, Reptiles, and Crocodilians, Seventh Edition. Herpetological Circular 39: 1-92
  • Garrett, Timothy B.; Wade A. Ryberg, Connor S. Adams, Tyler A. Campbell & Toby J. Hibbitts 2018. DIURNAL AND NOCTURNAL HABITAT USE IN RETICULATE COLLARED LIZARDS (CROTAPHYTUS RETICULATUS). The Southwestern Naturalist Dec 2018 Vol. 63, No. 4: 209-215 - get paper here
  • Heimes, P. 2022. LIZARDS OF MEXICO - Part 1 Iguanian lizards. Edition Chimaira, Frankfurt Am Main, 448 pp.
  • Klein, T., Jr. 1951. Notes on the Feeding Habits of Crotaphytus reticulatus Herpetologica 7 (4): 200. - get paper here
  • Lazcano D, Nevárez-de los Reyes M, García-Padilla E, Johnson JD, Mata-Silva V, DeSantis DL, Wilson LD. 2019. The herpetofauna of Coahuila, Mexico: composition, distribution, and conservation status. Amphibian & Reptile Conservation 13(2) [General Section]: 31–94 (e189) - get paper here
  • Lemos-Espinal, J.A. & Smith, H.M. 2007. Amphibians and reptiles of the state of Coahuila, Mexico. Universidad Nacional Autonoma de Mexico, 550 pp.
  • 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 - get paper here
  • Lipfert, J. 2004. Halsbandleguane (die Gattung Crotaphytus). Natur und Tier Verlag (Münster), 64 pp. - get paper here
  • Montanucci, R. R. 1971. Ecological and distributional data on Crotaphytus reticulatus (Sauria: Iguanidae). Herpetologica 27 (2): 183-197 - get paper here
  • 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 - get paper here
  • Montanucci, R. R. 1976. Crotaphytus reticulatus Baird Reticulate collared lizard. Catalogue of American Amphibians and Reptiles (185): 1-2 - get paper here
  • Nevárez-de-los-Reyes, Manuel, David Lazcano, Elí García-Padilla, Vicente Mata-Silva, Jerry D. Johnson and Larry David Wilson. 2016. The Herpetofauna of Nuevo León, Mexico: Composition, Distribution, and Conservation. Mesoamerican Herpetology 3 (3): 558–638 - get paper here
  • Schmidt, K.P., and D. Owens. 1944. Amphibians and reptiles of northern Coahuila, Mexico. Field Museum of Natural History, Zoological Series. Chicago. 29: 97-115. - get paper here
  • Smith, H. M., & Burger, W.L. 1950. Herpetological results of the University of Illinois field expedition, Spring 1949. III. Sauria. Transactions of the Kansas Academy of Science 53 (2): 165-175 - get paper here
  • Smith, H.M. & Taylor,E.H. 1950. An annotated checklist and key to the reptiles of Mexico exclusive of the snakes. Bull. US Natl. Mus. 199: 1-253 - get paper here
  • Smith, Hobart M. 1938. Additions to the herpetofauna of Mexico. Copeia 1938 (3): 149-150 - get paper here
  • Smith, Hobart M. 1946. Handbook of Lizards: Lizards of the United States and of Canada. Comstock, Ithaca, NY, xxii + 557 pp.
  • Terán-Juárez, Sergio A., Elí García Padilla, Vicente Mata-Silva, Jerry D. Johnson and Larry David Wilson. 2016. The herpetofauna of Tamaulipas, Mexico: composition, distribution, and conservation status. Mesoamerican Herpetology 3 (1): 43–113 - get paper here
  • Weidler, J M 2019. Protected areas of Texas in relation to Texas reptiles. Herpetological Review 50 (3): 462-473 - get paper here
  • Werning, H. 2018. Der Große Treck. Teil 6: Den Rio Grande entlang. Reptilia 23 (130): 68-78
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