30 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119 



Genus POLYCHRUS Cuvier 



1. Scales of sides same size or smaller than dorsals and not separated by tiny 



granules 2 



Scales of sides slightly larger than dorsals and separated from each other by 

 tiny granular scales femoralis 



2. Canthus rostralis at least somewhat rounded; scales on pectoral region smooth 



or very weakly keeled 3 



Canthus rostralis distinctly angular; scales on pectoral region strongly keeled, 

 may be bi- or tricarinate, usually unicarinate gutturosus gutturosus 



3. Low series of raised scales forming midventral crest from mental to gular 



appendage marmoratus 



No low series of raised scales forming midventral crest on chin. 



gutturosus spurrellii 



Polychrus femoralis Werner 



Polychrus femoralis Werner, 1910, Mitt. Nat. Mus. Hamburg, vol. 27, 

 p. 21. Guayaquil, Ecuador (formerly HM, apparently destroyed). 

 Range : Lowlands in southwestern Ecuador. 



Polychrus gutturosus gutturosus Berthold 



Polychrus gutturosus Berthold, 1846, Nachr. Univ. und Konigl. Gesell 

 Wiss. Gottingen, nos. 8-10, p. 11. Popayan, Colombia (GottM). 



Range : Higher western Andean slopes of Ecuador and Colombia and 

 northward to Costa Rica and Nicaragua. 



Polychrus gutturosus spurrellii Boulenger 



Polychrus spurrellii Boulenger, 1914, Proc. Zool. Soc. London, p. 814. 



Pena Lisa, Condoto, Colombia (BM 1946.8.8.33-34). 

 Range : Choco of northwestern Ecuador and Colombia. 



Polychrus marmoratus (Linnaeus) 



Lacerta marmorata Linnaeus, 1758, Syst. Nat., 10th ed., vol. 1, p. 208. 



"Hispania" (type unknown). 

 Range : Amazonian basin of South America. 



Genus PRIONODACTYLUS O'Shaughnessy 



1. Fewer than 25 transverse rows of ventral plates from the edge of the collar to 



pre-anal shields 2 



25 or more transverse ventral rows ocellijer 



2. 35 or more scales from occiput to base of tail 3 



Fewer than 35 scales from occiput to base of tail vertebralis 



3. Fewer than 40 scales about middle of body oshaughnessyi 



40 or more scales about middle of body manicatus 



