Aspidoscelis angusticeps (COPE, 1878)

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Higher Taxa	Teiidae, Teiinae, Gymnophthalmoidea, Sauria, Squamata (lizards)
Subspecies	Aspidoscelis angusticeps petenensis (BEARGIE & MCCOY 1964) Aspidoscelis angusticeps angusticeps (COPE 1877)
Common Names	E: Yucatan Whiptail S: Cuiji Yucateco
Synonym	Cnemidophorus angusticeps COPE 1878: 95 Cnemidophorus gularis angusticeps — COPE 1892: 46 Cnemidophorus sackii angusticeps — SMITH & TAYLOR 1950: 183 Cnemidophorus angusticeps — STUART 1963 Cnemidophorus angusticeps — PETERS et al. 1970: 92 Cnemidophorus angusticeps — LINER 1994 Cnemidophorus angusticeps — KÖHLER 2000: 100 Aspidoscelis angusticeps — REEDER et al. 2002 Aspidoscelis angusticeps angusticeps (COPE 1877) Cnemidophorus angusticeps COPE 1878: 95 Cnemidophorus angusticeps angusticeps — MASLIN & SECOY 1986 Aspidoscelis angusticeps angusticeps — REEDER et al. 2002 Aspidoscelis angusticeps angusticeps — LINER & CASAS-ANDREU 2008 Aspidoscelis angusticeps petenensis (BEARGIE & MCCOY 1964) Cnemidophorus angusticeps petenensis BEARGIE & MCCOY 1964: 565 Cnemidophorus angusticeps petenensis — KLUGE 1984 Cnemidophorus angusticeps petenensis — MASLIN & SECOY 1986 Aspidoscelis angusticeps petenensis — REEDER et al. 2002 Aspidoscelis angusticeps petenensis — LINER & CASAS-ANDREU 2008
Distribution	Mexico (Yucatán, Quintana Roo, Campeche), Guatemala, Belize angusticeps: N Yucatán petenensis: Basis of the Yucatán peninsula. Type locality: Guatemala, El Petén, La Libertad. Type locality: “Yucatán”. Restricted to Chichen Itzá by SMITH & TAYLOR 1950.
Reproduction	oviparous
Types	Syntypes: USNM 24876-24878 Holotype: UMMZ 74980 [petenensis]
Diagnosis	Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 2647 characters), are available for collaborators and contributors. Please contact us for details.
Comment	Genome: Colston et al. 2025. Distribution: see map in Duellman & Zweifel 1962: 173 (Fig. 3).
Etymology	Named after Latin “angustus, -a, -um” = narrow and the abbreviated term “-ceps” for “caput” = head. A. a. petenensis was named after its type locality, El Petén.
References	Aguilar-López JL, Luría-Manzano R, Pineda E, Canseco-Márquez L 2021. Selva Zoque, Mexico: an important Mesoamerican tropical region for reptile species diversity and conservation. ZooKeys 1054: 127-153 - get paper here Badillo-Saldaña, L.M., Pineda, E. & Ramírez-Bautista, A. 2024. From tropical forest to agroecosystems: changes in functional and species diversity of lizards in Mexican Caribbean. Agroforest Syst (2024) - get paper here Beargie, K. & McCoy, C.J. 1964. Variation and relationships of the teiid lizard Cnemidophorus angusticeps. Copeia 1964 (3): 561-570 - get paper here Campbell, J.A. 1998. Amphibians and reptiles of northern Guatemala, the Yucatán, and Belize. Norman: University of Oklahoma Press, xiii + 380 pp. - get paper here Colston, Timothy J., Stacy Pirro, and R. Alexander Pyron. 2025. The Complete Genome Sequences of 101 Species of Reptiles. Biodiversity Genomes, February - get paper here Colston, Timothy J.; José António L. Barão-Nóbrega, Ryan Manders, Alice Lett, Jamie Wilmott, Gavin Cameron, Sidony Hunter, Adam Radage, Etienne Littlefair, Robert J. Williams, Antonio Lopez Cen, Kathy Slater 2015. Amphibians and reptiles of the Calakmul Biosphere Reserve, México, with new records. Check List 11 (5): 1759 - get paper here Cope, E.D. 1878. Tenth contribution to the herpetology of Tropical America. Proc. Amer. Philos. Soc. 17: 85-98 [1877] - get paper here Cope, E.D. 1892. A synopsis of the species of the teiid genus Cnemidophorus. Trans. Am. Phil. Soc. (ser. 2) 17 (1): 27-52 [1893] - get paper here Duellman, W. E., & ZWEIFEL, R. G. 1962. A synopsis of the lizards of the sexlineatus group (genus Cnemidophorus). Bull. Amer. Mus. Nat. Hist. 123: 155-210. - get paper here Köhler, G. 2000. Reptilien und Amphibien Mittelamerikas, Bd 1: Krokodile, Schildkröten, Echsen. Herpeton Verlag, Offenbach, 158 pp. Köhler, G. 2008. Reptiles of Central America. 2nd Ed. Herpeton-Verlag, 400 pp. Koller, Rene 2005. Herpetologoische waarnemingen in Belize, deel 2: reptielen. Lacerta 63 (1): 4-19 - get paper here Lee, J. C. 2000. A field guide to the amphibians and reptiles of the Maya world. Cornell University Press, Ithaca, Lee, J.C. 1996. The amphibians and reptiles of the Yucatán Peninsula. Comstock, Cornell University Press, Ithaca, 500 pp. Manríquez-Morán, Norma L., Fausto R. Méndez-de la Cruz, and Robert W. Murphy 2014. Genetic Variation and Origin of Parthenogenesis in the Aspidoscelis cozumela Complex: Evidence from Mitochondrial Genes. Zoological Science 31, No. 1: 14-19. - get paper here Maslin, T. & Secoy, D.M. 1986. A checklist of the lizard genus Cnemidophorus (Teiidae). Contr. Zool. Univ. Colorado Mus. 1: 1-60 Moritz, Craig C.; Wright, John W.; Singh, V.; Brown, Wesley M. 1992. Mitochondrial DNA analysis and the origin and relative age of parthenogenetic Cnemidophorus. V. The cozumelae species group. Herpetologica 48 (4): 417-424 Nahuat-Cervera, Pedro Enrique 2020. Amphibians and reptiles of the Hobonil Educative Center, Tzucacab, Yucatán, Mexico. Rev. Latinoamer. Herp. 3 (1): 53-65 - get paper here REEDER, T.W.; CHARLES J. COLE AND HERBERT C. DESSAUER 2002. Phylogenetic Relationships of Whiptail Lizards of the Genus Cnemidophorus (Squamata: Teiidae): A Test of Monophyly, Reevaluation of Karyotypic Evolution, and Review of Hybrid Origins. American Museum Novitates 3365: 1-64 - 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. 1939. Notes on Mexican reptiles and amphibians. Zoological Series of Field Museum of Natural History 24 (4): 15-35 - get paper here Stuart, L.C. 1963. A checklist of the herpetofauna of Guatemala. Misc. Publ. Mus. Zool., Univ. Michigan (No. 122): 1-150 - get paper here Taylor, Harry L.; Charles J. Cole, and Christopher R. Cooley 2014. Origins and Evolution in the Aspidoscelis cozumela Complex of Parthenogenetic Teiid Lizards: Morphological and Karyotypic Evidence and Paradoxes. Journal of Herpetology Sep 2014, Vol. 48, No. 3: 343-354. - get paper here
External links	IUCN Red List National Center for Biotechnology Information http://crocdoc.ifas.ufl.edu/publications/pamphlets/Lamanai%20Herp%20Guide… Google images

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