You are here » home advanced search Crotaphytus dickersonae

Crotaphytus dickersonae SCHMIDT, 1922

IUCN Red List - Crotaphytus dickersonae - Least Concern, LC

Can you confirm these amateur observations of Crotaphytus dickersonae?

Add your own observation of
Crotaphytus dickersonae »

Find more photos by Google images search: Google images

Higher TaxaCrotaphytidae, Iguania, Sauria, Squamata (lizards)
Common NamesE: Sonoran Collared Lizard
S: Cachorón de Azul de Collar 
SynonymCrotaphytus dickersonae SCHMIDT 1922
Crotaphytus collaris dickersonae — ALLEN 1933
Crotaphytus collaris dickersonae — SMITH & TANNER 1974
Crotaphytus dickersonae — MONTANUCCI et al. 1975
Crotaphytus dickersonae — MCGUIRE 1996
Crotaphytus dickersonae — LOVE 2005
Crotaphytus dickersonae — HEIMES 2022 
DistributionMexico (Sonora, Baja California)

Type locality: "Tiburon Island", Sonora, Mexico.  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: USNM 64451 
DiagnosisDiagnosis: Crotaphytus dickersonae can be distinguished from Crotaphytus bicinctores, C. grismeri, C. insularis, and C. vestigium by the presence of black oral melanin, a blue or turquoise dorsal coloration, and the absence of enlarged postanal scales in males. It may be distinguished from C. reticulatus, C. collaris, and C. nebrius by the presence in adult males of a strongly laterally compressed tail with a white or pale stripe extending vertebrally and enlarged dark brown or black inguinal patches extending between one-half and one-third of the distance between the hindlimb and forelimb insertions. It may be further distinguished from C. reticulatus and C. anriquus by the presence of a dorsal pattern of white spots on a blue or turquoise field rather than white reticulations on a gold, tan, or brown field. It may be further distinguished from C. collaris by the presence of dark brown or black pigmentation in the gular fold (= ventrally complete anterior collar)and the absence of enlarged postanal scales in males. It may be further distinguished from C. nebrius by the presence of a blue or turquoise dorsal coloration rather than tan and the absence of enlarged postanal scales in males (McGuire 1996: 80). 
EtymologyNamed after Mary Cynthia Dickerson (1866-1923), former curator of Ichthyology and Herpetology at the American Museum ofNatural History (1909-1921). 
  • Allen, Morrow J. 1933. Report on a collection of amphibians and reptiles from Sonora, Mexico, with the description of a new lizard. Occasional Papers of the Museum of Zoology, University of Michigan (259): 1-15 - get paper here
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Bezy, R. L., P. C. Rosen, T. R. Van Devender, and E. F. Enderson. 2017. Southern distributional limits of the Sonoran Desert herpetofauna along the mainland coast of northwestern Mexico. Mesoamerican Herpetology 4(1): 138–167 - get paper here
  • Faber, Lieke, Melissa Plasman and Marie José Duchateau. 2013. The use of photo identification on Dickerson's collared lizard (Crotaphytus dickersonae). Herpetological Review 44 (4): 600-603 - get paper here
  • Heimes, P. 2022. LIZARDS OF MEXICO - Part 1 Iguanian lizards. Edition Chimaira, Frankfurt Am Main, 448 pp.
  • Jones, L.L. & Lovich, R.E. 2009. Lizards of the American Southwest. A photographic field guide. Rio Nuevo Publishers, Tucson, AZ, 568 pp. [review in Reptilia 86: 84] - get paper here
  • Lemos-Espinal JA, Smith GR, Rorabaugh JC 2019. A conservation checklist of the amphibians and reptiles of Sonora, Mexico, with updated species lists. ZooKeys 829: 131-160 - get paper here
  • Love, B. 2005. Der Blaue Mexikaner. Reptilia (Münster) 10 (56): 16-17 - get paper here
  • McGuire, J. A. 1996. Phylogenetic systematics of crotaphytid lizards (Reptilia: Iguania: Crotaphytidae). Bulletin of Carnegie Museum of Natural History 32: 1-142 - get paper here
  • 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 - get paper here
  • Schmidt, Karl Patterson 1922. The Amphibians and Reptiles of Lower California and the Neighboring Islands. Bull. Amer. Mus. Nat. Hist. 46 (11): 607-707 - get paper here
  • Smith, N.M. & W.W. Tanner. 1974. A taxonomic study of the western collared lizards, Crotaphytus collaris and Crotaphytus insularis. Brigham Young University Science Bulletin 19: iv, 1-29. - get paper here
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
External links  
Is it interesting? Share with others:

Please submit feedback about this entry to the curator