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Sceloporus megalepidurus SMITH, 1934

IUCN Red List - Sceloporus megalepidurus - Vulnerable, VU

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Higher TaxaPhrynosomatidae, Sceloporinae; Iguania, Sauria, Squamata (lizards) 
SubspeciesSceloporus megalepidurus megalepidurus SMITH 1934
Sceloporus megalepidurus pictus SMITH 1936 
Common NamesLargescale Spiny Lizard, Cursorial Spiny Lizard, Dull Cursorial Spiny Lizard
pictus: Painted Cursorial Spiny Lizard 
SynonymSceloporus megalepidurus SMITH 1934: 272
Sceloporus megalepidurus — SMITH & TAYLOR 1950: 121
Sceloporus megalepidurus — LINER 1994
Sceloporus megalepidurus megalepidurus — BELL et al. 2003
Sceloporus megalepidurus — MATA-SILVA et al. 2015

Sceloporus megalepidurus pictus SMITH 1936
Sceloporus pictus SMITH 1936
Sceloporus pictus — SMITH & TAYLOR 1950: 121
Sceloporus megalepidurus pictus — BELL et al. 2003
Sceloporus megalepidurus pictus — LINER & CASAS-ANDREU 2008
Sceloporus pictus — LEACHÉ & SITES 2009
Sceloporus pictus — LEACHÉ 2010 
DistributionMexico (W Veracruz, N Puebla, Tlaxcala, Hidalgo)

pictus: C Puebla, CW Veracruz. Type locality: Santa Catarina, Puebla.

Type locality: Near Totalco, Veracruz. Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
ReproductionAll species of the megalepidurus group are vivparous. 
TypesHolotype: FMNH 100107 (EHT-HMS 7543), collected 19 July 1932 by E. H. Taylor and H. M.
Smith.

Holotype: AMNH 18744, collected on 27 July 1920, by Paul D. R. Rüthling [pictus] 
CommentSubspecies: Sceloporus megalepidurus halli DASMANN & SMITH 1974 is now treated as full species. Smith et al. (2000) showed clear evidence of apparent intergradation (hybridization?) between megalepidurus and pictus, but Wiens and Reeder (1997) regarded the relationship as uncertain.

Synonymy of Sceloporus megalepidurus halli after SMITH et al. 2000. 
EtymologyThe Greek mega, "large,", lepis, "scale," and oura, "tail," refer to the caudal scales, which are two to three times as large as the body scales.

Etymology (halli): The name honors William P. Hall III, who contributed to the systematics of Sceloporus through karyotyping, and opened the can of worms in the Sceloporus grammicus complex.

Etymology (pictus): The Latin pictus, "painted," refers to the the rather spectacular coloration of this subspecies as compared with m. megalepidurus. 
References
  • Boulenger,G.A. 1897. A revision of the lizards of the genus Sceloporus. Proc. Zool. Soc. London 1897: 474-522 - get paper here
  • Casas-Andreu, G., F.R. Méndez-De la Cruz and X. Aguilar-Miguel. 2004. Anfibios y Reptiles; pp. 375–390, in A.J.M. García-Mendoza, J. Ordoñez and M. Briones-Salas (ed.). Biodiversidad de Oaxaca. Instituto de Biología, UNAM-Fondo Oaxaqueño para la Conservación de la Naturaleza-World Wildlife Fund, México, D. F.
  • Dasmann, M. M.; Smith, H. M. 1974. A new sceloporine lizard from Oaxaca, Mexico. Great Basin Naturalist 34 (3): 231-237 - get paper here
  • Fitch, H. S. 1978. Sexual size differences in the genus Sceloporus. Univ. Kansas Sci. Bull. 51 (13): 441-461 - get paper here
  • Leaché, A.D. 2010. Species trees for spiny lizards (Genus Sceloporus): Identifying points of concordance and conflict between nuclear and mitochondrial data. Molecular Phylogenetics and Evolution 54: 162–171 - get paper here
  • Leaché, A.D. & J.W.Sites, Jr. 2009. Chromosome Evolution and Diversification in North American Spiny Lizards (Genus Sceloporus). Cytogenet Genome Res 127: 166-181 - get paper here
  • Lemos-Espinal, Julio A., Geoffrey R. Smith 2015. Amphibians and reptiles of the state of Hidalgo, Mexico. Check List 11 (3): 1642 - get paper here
  • Mata-Silva, Vicente, Jerry D. Johnson, Larry David Wilson and Elí García-Padilla. 2015. The herpetofauna of Oaxaca, Mexico: composition, physiographic distribution, and conservation status. Mesoamerican Herpetology 2 (1): 6–62 - get paper here
  • Smith, H. M. 1939. The Mexican and Central American lizards of the genus Sceloporus. Field Mus. Nat. Hist., Zool. Ser. 26: 1-397. - get paper here
  • Smith, H. M., F. Mendoza Quijano, E. A. Liner and D. Chiszar 2006. Sceloporus halli. Catalogue of American Amphibians and Reptiles 836: 1-3. - get paper here
  • Smith, Hobart M. McCarthy, C. and David Chiszar 2000. Some enigmatic identifications in Boulenger’s 1897 Sceloporus monograph (Reptilia: Sauria). Bull. Maryland Herp. Soc. 36 (4): 124-132
  • Smith,H.M. 1934. Descriptions of new lizards of the genus Sceloporus from Mexico and Southern United States. Trans Kansas Acad. Sci. 37: 263-285 - get paper here
  • Smith,H.M. 1936. A new lizard of the genus Sceloporus from Southern Mexico. American Museum Novitates 892: 1-4 - get paper here
  • Smith,H.M. & Lynch,J.D. 1967. A new cryptic lizard (Iguanidae: Sceloporus) with comments on other reptiles from Oaxaca, Mexico. Herpetologica 23: 18-29 - get paper here
  • Wiens, John J.;Reeder, Tod W. 1997. Phylogeny of the spiny lizards (Sceloporus) based on molecular and morphological evidence. Herpetological Monographs 11: 1-101 - get paper here
 
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