NO. 3545 LIZARDS — PETERS 35 



Range : Interandean Plateau of Ecuador, from Cuenca Valley south- 

 ward. 



Remarks: Boulenger, 1885, Cat. Lizards British Mus., vol. 2, p. 134, 

 notes two specimens from Guayaquil and indicates that they are the 

 types. However, all records of the species have come from moun- 

 tainous areas. 



Stenocercus nigromaculatus Noble 



Stenocercus nigromaculatus Noble, 1924, Occ. Pap. Boston Soc. Nat. 



Hist., vol. 5, p. 112. Huancabamba, Peru (MCZ 17975). 

 Range : Highlands of Northern Peru. 



Stenocercus simonsli Boulenger 



Stenocercus simonsii Boulenger, 1899b, Ann. Mag. Nat. Hist., ser. 7, 



vol. 4, p. 454. Ofia, Ecuador (BM 1946.8.11.73-74). 

 Range : Highlands of Ecuador. 



Stenocercus varlus Boulenger 



Stenocercus varius Boulenger, 1885, Gat. Lizards British Mus., vol. 2, 



p. 134, pi. 8, fig. 3. Unknown (BM 71.4.16.53). 

 Range : Highlands of Ecuador. 



Genus THECADACTYLUS Oken 

 Thecadactylus rapicaudus (Houttuyn) 



Gekko rapicaudus Houttuyn, 1782, Verh. Zeeuw. Genootsch. Wet. 

 Vlissingen, vol. 9, p. 323, pi. 3, fig. 1. "American Islands," restricted 

 to Ghichen Itza, Yucatan, Mexico, by Smith and Taylor, 1950, 

 U.S. Nat. Mus. Bull., no. 199, p. 49 (type unknown). 



Range: Lesser Antilles, Mexico, Central America, northwestern 

 South America. Known from lowlands on both sides of the Andes 

 in Ecuador. 



Genus TROPIDURUS Wied 



1 . At least a few dorsal scales keeled 2 



Dorsal scales smooth peruviams 



2. Ventral scales smooth 3 



Ventral scales keeled holotropis 



3. A dorsal denticulation or crest occipitalis occipitalis 



No dorsal denticulation or crest torquatus* 



Tropidurus holotropis Boulenger 



Tropidurus holotropis Boulenger, 1912, Ann. Mag. Nat. Hist., ser. 8, 

 vol. 10, p. 420. Alpayacu, Rio Pastaza, Ecuador (BM 1946.8.29.64). 

 Range : Amazonian slopes in Ecuador and Peru. 



