1881.] LIZARDS FROM ECUADOR. 239 



covered above with small convex and pointed scales closely set : 

 larp;er scales forming the inner supraorbital border, and a strongly 

 projecting superciliary border of square uniform and equal scales 

 continuous with the canthus rostralis, about 13 from the nostril 

 above the orbit, or from 18 to 21 in the entire series. Three large 

 conical scales behind these at the hinder angle of the orbit ; groups 

 of large conical scales above the temporal region, round the anterior 

 edge of the ear, and in an isolated patch on the side of the neck. 

 Labial shields 12, equal. A crescentic row of about twelve infra- 

 oculars. Scales of tiie back and sides of the body very small. 

 A median dorsal crest of large conical scales, beginning behind the 

 occiput, and diminishing on the anterior part of the tail ; the highest 

 of these scales are much less than the vertical diameter of the ear. 

 A single lateral series of similar but much smaller scales along 

 each side of the body from the shoulder to the fore part of the 

 tail ; below this the scales of the side are minute and granular ; 

 above it the dorsal scales are minute but in regular rows up to 

 the dorsal crest, pointed and distinctly keeled ; scales of sides of 

 gular region strongly keeled ; gular region as far as the chest with 

 very convex erect scales closely set ; scales of the entire ventral 

 surface, including the chest, strongly keeled, those of the limbs also 

 keeled. Tail compressed, with complete rings of larger scales alter- 

 nating with spaces in which the scales are very small ; a double 

 series of projecting scales above ; all the scales on the inferior surface 

 large and keeled. A single femoral pore on each side. Mottled 

 and variegated with dark brown on a yellowish ground ; brown- 

 tinged on the tail, or greenish, with a brown network on the sides. 

 Gular region blackish or dark blue (in the male). Entire ventral 

 surface yellowish. An isolated yellow spot on each side of the neck. 

 In young specimens a yellow lateral stripe on the neck, 



millim. 



Total length 160 



Distance from tip of snout to ear-opening. . 30 



,> „ „ fore hmb. ... 55 



„ „ „ vent 113 



Length of fore limb 60 



„ third finger 15 



,, fourth finger 16 



„ hind limb 86 



„ third toe 16 



„ fourth toe 24 



Two specimens from Sarayacu. 



Besides these, there were already in the British Museum three 

 specimens collected by Mr. Fraser in Western Ecuador, which Dr. 

 Giinther mentioned as E. laticeps, P. Z. S. 1859, p. 407. 



The species now described approaches E. heterolepis, Bocourt 

 (Ann. Sc. Nat. [5] xix. Art. No. 4, and Miss. Sc. Mex. iii. livr. 4, 

 pi. 20 c. fig. 14), but differs from it in the much smaller size of the 



