20 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119 



Genus DIPLOGLOSSUS Wiegmann 



Diploglossus monotropis (Kuhl) 



Scincus monotropis Kuhl, 1820, Beitr. Zool. und Vergl. Anat., p. 128. 



"Jamaica," probably erroneous (type unknown). 

 Tiliqua jamaicensis Gray, 1839, Ann. Nat. Hist., vol. 2, p. 293. Jamaica 



(Mus. Chatham). 

 Range : Pacific coast of Ecuador and presumably Colombia ; Central 



America to Costa Rica. 



Genus ECHINOSAURA Boulenger 



Echinosaura horrida horrida Boulenger 



Echinosaura horrida Boulenger, 1890, Proc. Zool. Soc. London, p. 82, 



pi. 8, fig. 1. Ecuador (BM 1946.8.31.60-61). 

 Range : Pacific lowlands of Ecuador. 



Genus ECPLEOPUS Dumeril and Bibron 



Ecpleopus affinis W. Peters 



Ecpleopus affinis W. Peters, 1862b, Abh. Akad. Wiss. Berlin, p. 199, 



pi. 3, fig. 1. Unknown (MunM). 

 Cercosaura gaudichaudi. — Giinther, 1859a, Proc. Zool. Soc. London, p. 89. 

 Range : Higher Pacific slopes and inter-Andean valleys, from Ambato 



south, in Ecuador. 



Genus ENYALIOIDES Boulenger 



1 . Dorsal crest distinct 2 



Dorsal crest indistinct leechi* 



2. Spines on nuchal crest not isolated from spines on dorsal crest 3 



Spines of nuchal crest prominent and completely isolated from spines on dorsal 



crest palpebralis* 



3. One or two femoral pores on each side 4 



Three or four femoral pores on each side 6 



4. Ventrals keeled 5 



Ventrals smooth or indistincdy keeled praestabilis 



5. Dorsal granules very fine, more than sixteen between lateral denticulation and 



dorsal crest microlepis 



Dorsal granules larger, fewer than sixteen between lateral denticulation and 

 dorsal crest oshaughnessyi 



6. Dorsal scales heterogeneous in size 7 



Dorsal scales homogeneous 8 



7. Larger scales forming two irregular longitudinal series on each side of back and 



irregular vertical series on flanks heterolepis 



A single series of enlarged scales on each side of dorsum microlepis 



