BARBOUR AND NOBLE: LIZARDS OF THE GENUS AMEIVA. 475 
scales, the median row largest, the scales differing in size from those 
in the middle; under side of the body with eight longitudinal and 
twenty-eight transverse rows of plates; preanal scales irregular, a 
marginal pair and two or three anterior scales the largest; on the 
lower arm a double row of wide antebrachials, outer row the widest; 
‘on the upper arm a single row of large brachials continuous with the 
antebrachials; on the posterior side a single row of large postbrachials; 
under side of the thighs covered distally with three, proximally with 
six or eight rows of scales; seventeen and nineteen femoral pores; 
on the under side of the tibia three rows of shields; upper side of the 
wrist covered with scales forming a series of longitudinal rows of two 
or three scales each; inner and outer toe extending to approximately 
the same distance; tail covered with keeled scales in rings, the scale 
and the keel being straight or slightly oblique on the sides; about 
twenty-two scales in the fifteenth ring from the base. 
Coloration: — Dorsal surface dark olive-blue; on each side of the 
body a series of indistinct vertical stripes of black, somewhat confluent 
ventrally and spotted with indistinct blue blotches; ground tone of 
ventral surface steel-blue washed with straw-color about the anal 
region and on the under surfaces of legs. 
Remarks:— The description was made of an adult male, the only 
specimen examined, that measured seventy-four millimeters from snout 
to vent. 
Hatbitat:— Apparently confined to southern Mexico. 
AMEIVA UNDULATA QUADRILINEATA (Hallowell). 
Ameiva pulchra Hallowell, Proc. Acad. nat. sci. Phila., 1860, p. 483. 
Ameiva gabbiana Cope, Journ. Acad. nat sci. Phila., 1876, ser. 2, 8, p. 117, 
pl. 28, fig. 3. 
Description:— Adult female; M. C. Z. 9546. Chinandega, Nicara- 
gua; 1910; W. B. Richardson. 
Similar to Ameiva u. undulata from which it may be distinguished by 
the following characters:— a pair of frontoparietals nearly separated 
from the third supraocular by one or two rows of granules; three sub- 
equal occipitals, the median divided longitudinally; last supraocular 
separated from the outer occipitals by two or three rows of granules; 
chin and throat covered with small granules, an indistinct band of large 
ones extending across the middle, in the mid-region a group of eight 
or ten large scales varying into the others; preanal plates irregular, 
a longitudinal series of three pairs; on the posterior side of the upper 
