36 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



Tropidurus occipitalis occipitalis W. Peters 



Tropidurus (Laemopristus) occipitalis W. Peters, 1871b, Monatsb. Akad. 



Wiss. Berlin, p. 645. Peru (BerM 6446). 

 Tropidurus continentalis Miiller, 1924, Mitt. Zool. Mus. Berlin, vol. 11, 



no. 1, p. 82. Machalilla, Ecuador (BerM 26397). 

 Range: Coastal areas of southwestern Ecuador and northwestern 



Peru. 



Tropidurus peruvianus peruvianus (Lesson) 



Stellio peruvianus Lesson, 1826, in Duperrey, Voy. "Coquille," Reptiles, 

 vol. 5, pi. 2, fig. 2; vol. 2, pt. 1, 1830, p. 40. Callao and Payta, 

 Peru (PM 6873). 



Range: Coastal southwestern Ecuador and northwestern Peru. 



Genus TUPINAMBIS Daudin 



1. About 30 ventral scales across middle of belly; one loreal .... nigropunctatus 

 36 to 40 ventral scales across middle of belly; two loreals teguixin* 



Tupinambis nigropunctatus Spix 



Tupinambis nigropunctatus Spix, 1825, Spec. Nov. Lacert. Brasiliam, 

 p. 18, pi. 20. Brazil (Leipzig?). 



Range: Amazon Basin. 



Remarks: Tupinambis teguixin (Linnaeus) was recorded from "Napo or 

 the Upper Maranon" by Cope, 1868, Proc. Acad. Nat. Sci. Phila- 

 delphia, vol. 30, p. 99. It is very likely that the species is Ecuadorian, 

 but I know of no other records. 



Genus URACENTRON Kaup 



Uracentron flaviceps (Guichenot) 



Doryphorus flaviceps Guichenot, 1855, in Castelnau, Exp. Amer. Merid., 

 Reptiles, p. 26, pi. 3, fig. 2. Sarayacu, Peru (PM 6882). 



Range : Upper Amazonian areas of Ecuador and Peru. 



Remarks: Guibe, 1954, Cat. Types Lezards Paris Mus., p. 41, indicates 

 that JIaviceps is a synonym of Uracentron azureum (Linnaeus). I have 

 seen no documentation of this synonymy and retain flaviceps until 

 such documentation is published. Uracentron castor (Cope), 1870, was 

 described from Pebas, "Ecuador," but this locality is actually in 

 Peru. No Ecuadorian specimens are known to me, but the species 

 is to be expected in Ecuador, if it is validly distinct irom flaviceps. 



