22 PROCEEDINGS OF THE NATIONAL MUSEUM vol.78 



PROCTOTRETUS ORNATISSIMUS (Girard) 



1857. Saccodeira otiiatissima Girard, Proc. Acad. Nat. Sci. Philadelphia, p. 

 198 (type locality, lower cordilleras, .just below Obrajillo, and Yanga, 

 Peru), 



In the young of this species the black dorsal markings, instead 

 of being more or less irregular and indistinct as in the adult, are 

 regularly arranged, forming paired, light edged triangles on each 

 side of the dorsal crest. Also, the lower surfaces are lighter, with 

 only a few dark markings on the throat, instead of deeply suffused 

 with bluish as in the adult, and apparently the young have smooth 

 head scales or feebly keeled ones. 



Peru. — Two specimens. No. 5655, a co-type from Yanga, col- 

 lected by the United States exploring expedition, and No. T5398, 

 taken at Verrugas, Lima, by R. C. Shannon on July 8, 1928. 



PROCTOTRETUS PECTINATUS Dumeril and Bibron 



1837. Proctotretus pcctinatus Dumeril and Bibron, Erp. Gen., vol. 4, p. 292 

 (type locality, Chile). 



Argentina. — One specimen, No. 22736 from Bahia-Blanca received 

 from Museo de la Plata. 



Genus STENOCERCUS Dumeril and Bibron 



STENOCERCUS BOETTGERI Bonleneer 



1911. Stenocercus boettgeri Boulenger, Ann. Mag. Nat. Hist., ser. 8, vol. 7, p. 

 22 (type locality, Huaucabamba, Peru). 



Ecuador. — One specimen. No. 61756, collected in 1918 at Loja by 

 J. N. Rose. This example is described as a " green lizard " on the 

 field tag. The preserved specimen is dull, uniform, greenish black, 

 without additional markings. The gular fold is well developed, the 

 throat bluish black, and the other under parts white to grayish. 



STENOCERCUS CRASSICAUDATUS (Tschudi) 



1845. Scclotrema crasslcaudatu7n Tschudi, Fauna Peruana, Herpet., p. 28 (type 



locality, Urubamba, Peru). 

 1885. Stenocercus torquatus Bouuenger, Cat. Liz. Brit. Mus., vol. 2, p. 133, 



pi. 8, fig. 1 (type locality, Peru). 

 1913. Stenocercus ervingi Stejnegeb, Proc. U. S. Nat. Mus., vol. 45, p. 545 



(type locality, Huadquinia, Peru). 



Peru. — Nine specimens, Nos. 60731-32 taken on September 10, 1915, 

 from the Cosireni River Valley, No. 49550, the type of Stenocercus 

 ervingi from Huadquinia, Nos. 60710-13 and 60736 taken October 

 15, 1915, at San Fernando on the Rio Cosireni, 4,500 feet elevation, 

 and No. 60725 from Santa Ana at 3,400 feet taken in October, 1915, 

 all collected by members of the Yale-Peruvian Expedition. 



