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Stenocercus chrysopygus BOULENGER, 1900

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Higher TaxaTropiduridae, Iguania, Sauria, Squamata (lizards)
Common NamesE: Golden Whorltail Iguana 
SynonymStenocercus chrysopygus BOULENGER 1900
Stenocercus chrysopygus — PETERS & DONOSO-BARROS 1970: 256
Stenocercus chrysopygus — LEHR et al. 2002
Stenocercus chrysopygus — TORRES-CARVAJAL 2007 
DistributionW Peru

Type locality: Carao, 8,000 ft., Huaras, 10,000 ft. and Recuay, 11,000 ft. Peru.  
TypesHolotype: MRSN (= MSNTO) R25882 
DiagnosisDiagnosis: TORRES-CARVAJAL 2007.

Original description: Pterygoid teeth. Anterior border of ear denticulated. Upper head-scales smooth or feebly keeled, some of the supraoculars feebly enlarged transversely occipital not enarged; temporal scales feebly keeled. Side of neck with olds enclosing shallow pockets covered with granular scales; antehumeral fold much stronger than in the preceding species, with a serrated edge on its lower half, as in S. cupreus, Blgr. Body depressed. No dorsal crest or denticulation. Dorsal scales rather large, strongly imbricate, sharply keeled, sharply pointed ; the keels forming continuous lines, which are parallel or slightly oblique on the posterior part of the back : lateral scales passing gradually into the smaller smooth ventrals; 54 to 60 scales round the middle of the body. The adpressed hind limb reaches the humeral fold or between it and the ear; fifth toe not extending as far as second. Tail about twice as long as head and body, tapering, scarcely compressed, scaled like the body, the scales forming rings. Bronzy or greyish brown above, with darker or lighter spots, which may be confluent into longitudinal streaks; a more or less distinct light dorso-lateral streak constantly present lower parts whitish, sometimes bluish grey, the throat usually with a dark grey network; anal region and lower surface of hind limbs bright yellow in the males. (Boulenger 1900)

Measurements: Boulenger 1900: 184 
  • Boulenger, George A. 1900. Descriptions of new batrachians and Reptiles collected by Mr. P. O. Simons in Peru. Ann. Mag. Nat. Hist. (7) 6 (32): 181-186 - get paper here
  • Carranza, S.; E. N. Arnold & F. Amat 2004. DNA phylogeny of Lacerta (Iberolacerta) and other lacertine lizards (Reptilia: Lacertidae): did competition cause long-term mountain restriction? Systematics and Biodiversity 2 (1): 57-77 - get paper here
  • Etheridge, R. 1965. The abdominal skeleton of lizards in the family Iguanidae. Herpetologica 21: 161-168 - get paper here
  • KÖHLER, GUNTHER & EDGAR LEHR 2015. Two new species of lizards of the genus Stenocercus (Iguania, Tropiduridae) from central Peru. Zootaxa 3956 (3): 413–427 - get paper here
  • Lehr, E. 2002. Amphibien und Reptilien in Peru. Natur und Tier-Verlag (Münster), 208 pp. - get paper here
  • Lehr, E.; Köhler, G. & Streit, B. 2002. Die Herpetofauna von Mittelperu entlang eines Transektes von der pazifischen Küste bis in die Hochanden (Amphibia et Reptilia). Faun. Abh. Mus. Tierk. Dresden 22 (2): 361-392
  • Mendoza, A., Ramírez, C., Barrera, D., & Aguilar-Puntriano, C. 2021. A new species of the genus Stenocercus (Iguania: Tropiduridae) from the Peruvian Pacific coast (Ica region). Salamandra 57 (1): 1-14
  • Schlüter, U. 2005. Haltung und Zucht einiger Anden-Kielschwanzleguane (Stenocercus) aus dem peruanischen Hochland. Teil 5: Ergänzende Bemerkungen zu Stenocercus chlorostictus, zur Jugendfärbung von Stenocercus empetrus und zur Variabilität von Stenocercus chrysopygus. Reptilia (Münster) 10 (53): 56-63 - get paper here
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