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BARBOUR AND NOBLE: LIZARDS OF THE GENUS AMEIVA. 459 
median not larger than adjoining pair; seven superciliaries; four 
supraoculars, the first in contact with two anterior superciliaries, and 
separated from the loreal by the first of the latter; three posterior 
supraoculars separated from the superciliaries by a single row of gran- 
ules; the last two supraoculars separated from outer occipitals by 
two rows of small scales or granules; loreal undivided; seven large 
supralabials, third, fourth, and fifth longest, first in contact with 
posterior nasal, scarcely with anterior, second in contact with pos- 
terior nasal, third with posterior nasal and loreal; center of temples 
granular, the size of the granules increasing gradually downward and 
forward; a series of four distinctly enlarged scales from the postocular 
backwards; mental followed by an unpaired postmental; six large 
infralabials, third and fourth largest; first pair of chin-shields broadly 
in contact except at the extreme posterior end; between infralabials 
and chin-shields an interrupted single series of granules, extending 
from the second chin-shield backwards, third infralabial in contact 
with first and second chin-shields, and fourth infralabial in contact 
with fourth chin-shield; chin and throat covered with granules of 
varying sizes, the larger ones in the middle in four ill-defined groups, 
one anteriorly in the angle between the jaws, the second forming a 
band across the throat at the level of the ears, rather sharply defined 
posteriorly against the granules behind, the third a median group in 
front of the first transverse fold, and the fourth a transverse group of 
about three rows on the mesopthychium, the enlarged scales on the 
second and third being considerably larger than the others; back, 
sides, and upper sides of limbs covered with very fine uniform gran- 
ules, slightly smaller on the sides, and larger on the limbs; under side 
of body anteriorly with ten, posteriorly with twelve longitudinal and 
thirty-two transverse rows of square plates; on the preanal region an 
ill-defined group of about ten somewhat enlarged scales of varying 
size and shape; on the lower arm a series of wide plates (antebrachials) 
decreasing rapidly in size, and replaced by large granules or small 
hexagonal scales before reaching elbow joint; on the upper arm two 
distinct rows of similar but narrower scales, surrounded by somewhat 
slightly smaller scales, gradually decreasing in size, widely separated 
from the antebrachial series; on the under side near the elbow a group 
of slightly enlarged hexagonal postbrachials; seventeen femoral pores 
on the right side, eighteen on the left; under side of thighs covered with 
about five series of somewhat enlarged hexagonal plates, only the outer 
series being regular and somewhat larger than the others; on the 
under side of tibia four rows of enlarged hexagonal plates, those of the 
outer series very much larger than the others; upper side of wrist 
with four regular series of transverse plates corresponding to the meta- 
tarsals; first (inner) toe extending very slightly beyond the fifth 
(outer), fourth toe extending beyond the third for a distance much 
