BARBOUR AXD 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 sinule 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 



