18810 
LTZARDS FROM SCUADOlt. 
239 
covered above with small convex and pointed scales closely set : 
lar^r scales forming the inner supraorbital border, and a strongly 
projecting superciliary border of square uniform and eqiml acftiea 
continuous with the canthns rostralis, aboiU 13 from the nostril 
above the orbit, or from IS to 21 in the entire series. Three large 
conical scales behind these at the hinder angle of the orbit j groups 
of large conical scales above tbe 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 cresceutic row of about twelve infra- 
ocnlars. Scales of the 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 sujaHer 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 cheat, strongly keeled, those of the limbs also 
keeled. Tail compressed, with complete rings of larger scales alter- 
nating with spaces in vihich the scales are very small ; a double 
series of projecting scjdcs above ; all the scales on the inferior surface 
large and keeled. A single femoral pore on each side. Mottled 
and variegated with dark browti 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 ypllow spot on each side of the neck. 
In young specimens a yellow lateral stripe on the neck. 
millia. 
Total length im 
Distance from tip of snout to car- opening. . 30 
,t ,t „ fore limb. ... 55 
*t I, vent, . 113 
Length of fore limb QQ 
„ third finger l.'i 
fourth finger, 16 
„ hind limb , . 8C 
„ 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. 
Gimther mentioned as E, laticepx, P. Z. S. 1 8a 9, p. 407- 
Tlie species now described approaches //. heierolepist Bocourt 
(Ann. Sc. Nat. [5] xis. Art. No. 4, and Miss. Se. Mex, iii. livr. 4, 
pi. 20 c. fig. 1 4), but differs from it in the much smaller size of the 
