AHT. 6 SOUTH AMERICAN LIZAEDS C. E. AND M, D. BURT 35 



SO it can not be referred to K. altamazonicus Cope, which, after all, 

 may prove to be nothing but a synonym of calcaratus. 



Brazil. — One specimen, No. 28952, collected at Hyiitaihan, Lower 

 Amazonia, by J. B. Steere. 



Peru. — One specimen. No. 60744, taken at an elevation of 1800 

 feet, in the valley of the Rio Comberciato, near the great bend of the 

 Hio Urubamba by Edmund Heller in September, 1915. 



KENTROPYX INTERMEDIUS (Gray) 



1831. Teius (Centropyso) intermedlus Gbat, Synops. Rept., in Griffith's " Cuvier's 

 Animal Kingdom," p. 31 (type locality, Surinam). 



Although the dorsal scales in the specimen listed below are strongly 

 imbricate, those in specimens in the collection of the American 

 Museum show not only transition stages, but juxtaposition as well. 



British Guiana. — One specimen, No. 58462, from the Hurter col- 

 lection, taken in 1902. 



Genus PANTODACTYLUS Dumeril and Bibron 



PANTODACTYLUS BUCKLEYI BUCKLEYI (O'Shanghnessy) 



1881. Leposoma huckleyi O'Shaughnessy, Pioc. Zool. Soc. London, p. 233 (type 



locality, Canelos, Ecuador). 

 1885. Alopoglossus iuckleyi Boiilengeb, Cat. Liz. Brit. Mus., vol. 2, p. 385. 



This form is very closely allied to P. huckleyi festae Peracca 

 (1904) from which it differs in having the posterior pair of chin 

 shields entirely separated by granules instead of being in contact 

 with each other, at least anteriorly. 



A specimen, No. 20613, collected at Plaza de Oro, 200 feet above 

 sea level in the Santiago Kiver Valley, Ecuador, by M. B. Kerr, 

 is apparently referable to this form. It shows the following charac- 

 ters: 28 rows of scales around the middle of the body; 30 scales 

 from the occiput to the base of the tail ; 8 rows of transverse gulars, 

 20 rows of transverse ventrals, and therefore 28 transverse series of 

 plates from the chin shields to the preanal region; femoral pores 

 7 on each side; ventral plates nearly square, wider in front than 

 behind ; chin shields in 3 pairs, the posterior pair nearly separated by 

 granules; temporal scales more or less distinctly keeled, the keeling 

 more pronounced posteriorly. 



PANTODACTYLUS SCHREIBERSII (Wiegmann) 



1834. Cercosaura schreihersii Wiegmann, Herpetologia Mexicana, p. 10 (type 



locality, Brazil). 

 1863. Payitodactylus Uvittatus Cope, Proc. Acad. Nat. Sci. Philadelphia, p. 103 



(type locality, Paysandii, Uruguay). 

 1885. Pantodactylus schreihersii Boulengee, Cat. Liz. Brit. Mus., vol. 2, p. 388. 



There may be either three or four pairs of chin shields in this 

 species. 



