BARBOUR AND NOBLE: LIZARDS OF THE GENUS AMEIVA. 461 
of scales, median largest; under side of the body with twelve longi- 
tudinal and thirty-three transverse rows of plates, the scales of the 
outer row much smaller than the others; preanal plate in a triangle 
of three large scales, with a smaller scale at each of the basal angles, 
and another at the base of the median suture; on the lower arm three 
rows of antebrachials, the outer row widest, the two inner somewhat 
irregularly arranged, the series extending to the brachials; on the 
upper arm three rows of brachials all about the same size; on the 
posterior side near the elbow joint a group of small postbrachials; 
under side of the thighs covered distally with four, proximally with 
twelve rows of scales; sixteen and seventeen femoral pores; on the 
under side of the tibia three, or partly four rows of plates, outer 
widest; upper side of the wrist with regular series of plates, longi- 
tudinally arranged; outer toe extending not so far as the inner; tail 
covered with straight, keeled scales; about fifty scales in the fifteenth 
ring from the base. 
Coloration: — Dorsal surface pale olive-brown, slightly more red- 
dish on head; upper and lateral surface of the body, legs, and tail 
finely speckled with black, the spots confluent posteriorly into reticu- 
lations; flanks with six or seven longitudinal rows of white spots 
encircled often with black, the lower three rows on the outer ventrals; 
sides of the tail spotted irregularly with black and white; chin and 
gular region, part of the sides of head and arms black; ventral surface 
straw-color encroached upon by the spotting of the sides and the dark 
wash of the throat. 
Variation: — An adult female (same data as above) differs from the 
male in that the dark confluent spots are much less numerous. The 
general tonality is pale, and the lateral spots are not sharply defined. 
A young male (same data as above) differs considerably from the 
adult. Although having the same general ground tone there are no 
black specklings. On each side there is a broad black stripe, stifled 
with a few white spots. The outer ventrals have two rows of black 
spots on either side. There is no black on the chin, throat, or sides 
of the head. 
Remarks:— The description was made of an adult male that meas- 
ured one hundred and fifty-five millimeters from snout to vent. 
We have examined only the types of this species, M. C. Z. 6079 
and 6080. There are fifteen specimens in this series, young and old 
of both sexes. 
Habitat:— Apparently confined to the island of ‘Trinidad. 
