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Holcosus chaitzami (STUART, 1942)

IUCN Red List - Holcosus chaitzami - Data Deficient, DD

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Higher TaxaTeiidae, Teiinae, Gymnophthalmoidea, Sauria, Squamata (lizards)
Common NamesE: Chaitzam's Ameiva
S: Ameiva de Chaitzam 
SynonymAmeiva chaitzami STUART 1942
Ameiva undulata thomasi SMITH & LAUFE (part.)
Ameiva undulata tomasi — ALVAREZ DEL TORO 1982 (part.)
Ameiva chaitzami — LINER 1994
Ameiva chaitzami — KÖHLER 2000: 97
Holcosus chaitzami — HARVEY et al. 2012 
DistributionSE Mexico (Chiapas), Guatemala (Petén, Quecchian, and Grijalvan Areas)

Type locality: Along Cahabon–Coban trail about 2 km N Finca Canihor (about 38 km airline ENE Coban), Alta Verapaz, Guatemala.  
TypesHolotype: UMMZ 90638 
CommentSynonymy: Echternacht (1971) synonymized H. u. thomasi with H. chaitzami; however, examination of most of the types of H. chaitzami, as well as some types and nine additional specimens from around the type locality of H. u. thomasi, suggests that these two taxa actually represent distinct species (Meza-Lázaro et al. 2015).

Similar species: Aspidoscelis motaguae. 
EtymologyStuart provides the following etymology: "Dedicated to Chaitzam, the mountain lord who dominates the lower Cahabón Valley." It’s unclear what he was referring to. 
  • Alvarez DEL TORO, M. 1982. Los Reptiles de Chiapas. 3rd ed. México: Tuxtla Gutiérrez, 248 pp.
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Echternacht, A. C. 1971. Middle American lizards of the genus Ameiva. Misc. Publ. Univ. Kans. Mus. Nat. Hist. 55: 1-86 - get paper here
  • Echternacht, Arthur C. 1970. Taxonomic and ecological notes on some Middle and South American lizards of the genus Ameiva (Teiidae). Breviora (354): 1-9 - get paper here
  • HARVEY, MICHAEL B.; GABRIEL N. UGUETO & RONALD L. GUTBERLET, Jr. 2012. Review of Teiid Morphology with a Revised Taxonomy and Phylogeny of the Teiidae (Lepidosauria: Squamata). Zootaxa 3459: 1–156 - get paper here
  • Johnson, Jerry D.; Vicente Mata-Silva, Elí García Padilla, and Larry David Wilson 2015. The Herpetofauna of Chiapas, Mexico: composition, distribution, and conservation. Mesoamerican Herpetology 2 (3): 272–329. - get paper here
  • Köhler, G. 2000. Reptilien und Amphibien Mittelamerikas, Bd 1: Krokodile, Schildkröten, Echsen. Herpeton Verlag, Offenbach, 158 pp.
  • 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.
  • Meza-Lázaro, R. N. and Nieto-Montes de Oca, A. 2015. Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae). Zoological Journal of the Linnean Society 175 (1): 189-210; doi: 10.1111/zoj.12264 - get paper here
  • Stuart, L. C. 1942. Comments on the undulata group of Ameiva (Sauria). Proc. Biol. Soc. Washington 55: 143-150 - get paper here
  • Stuart, L. C. 1948. The amphibians and reptiles of Alta Verapaz Guatamala. Miscellaneous Publications, Museum of Zoology, University of Michigan 69: 1-109 - get paper here
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