BARBOUR AND NOBLE: LIZARDS OF THE GENUS AMEIVA. 449 
and on either side of them largest; on the area between the two throat 
folds a small group of enlarged scales formed of five transverse rows 
of about six or seven scales each; under side of the body with fourteen 
longitudinal and thirty-six transverse rows of plates; preanal plates 
irregularly arranged, the three largest forming a triangular group 
crowded slightly out of the median line by two or three smaller ones; 
on the lower arm a single row of four or five wide plates breaking up 
into granules before reaching the elbow; on the upper arm three or 
four rows of brachials, median largest, others grading into the granules 
of the arm; on the posterior side near the elbow a small group of 
slightly enlarged postbrachials; under side of the thighs covered dis- 
tally with five, proximally with ten or twelve rows of scales, outer row 
widest; thirty-eight and thirty-nine femoral pores; on the under 
side of the tibia two rows of large and three of small scales, outermost 
considerably larger than the other two; upper side of the wrist with a 
regular longitudinal series of plates covering the outer part of wrist 
and hand only; outer toe extending a little further than the inner; 
tail covered with straight keeled scales; about thirty-seven scales 
in the fifteenth ring from the base. 
Coloration:— Dorsal surface dark olive-green slightly tinged in life 
with russet, head lighter and more reddish olive, the sides of which 
are almost rosy in life; numerous black pencilings on the back and 
sides arranged in a very wide median band, and two narrower more 
distinct lateral bands running the length of the body but fading off 
on the tail; chin and throat pale flesh-color in sharp contrast to the 
rest of the under parts which are blue-gray; the pale throat almost 
brilliant in life serving to distinguish this form from all others except 
perhaps the closely related A. erythrops. 
V arvation:— The females are similar to the males except that the 
dark pencilings on the back are more numerous and distinct, forming 
almost a network of black lines having a generally transverse direction. 
There is a suggestion of a pale line anteriorly on each side of the body. 
This becomes more distinct in the young and borders a dark lateral 
band on the upper side while a similar white line forms a lower mar- 
gin to the stripe. Generally speaking the young are like the adult 
females. One specimen, however, (M. C. Z. 10376) has a pale throat 
which is not in sharp contrast to the pale blue-gray under parts, and 
there are no ultramarine blue spots on the outer ventral plates as found 
in the adults. 
Remarks:— The description was made of an adult male that meas- 
ured one hundred and twelve millimeters from snout to vent. Old 
males often grow much larger than this specimen. 
Habitat:— Apparently confined to the island of St. Christopher 
where it is common about the town of Basse Terre especially on the 
low-lying uncultivated fields to the west of the settlement. 
