456 bulletin: museum of comparative zoology. 



antebrachials, outer row considerably larger than the others, all 

 breaking up into small scales before the elbow joint; on the upper arm 

 three rows of brachials, median largest; on the posterior side near the 

 elbow joint a small group of small postbrachials; under side of the 

 thighs covered with four rows distally, with fourteen proximally, 

 outer row just above the knee formed of the widest scales; twenty- 

 eight femoral pores; on the under side of the tibia five rows of scales, 

 the two proximal ones of the outer row considerably larger than the 

 others and both subequal; upper side of the wrist with a regular 

 series of plates covering the outer edge only; outer toe extending a 

 little further than the inner; tail covered with straight keeled scales; 

 about forty-six scales in the fifteenth ring from the base. 



Coloration: — Since the type specimen described is somewhat faded, 

 another specimen (M. C. Z. 10571; adult male, collected 1914 on 

 Dominica by A. G. Ruthven) is used for coloration. Dorsal surface 

 very dark olive-blue; on each side, a row of irregular pale blue spots; 

 upper surfaces of thighs spotted with the same color; ground tone of 

 ventral surface straw-color; outer ventrals, lower part of flanks with 

 two or three rows of pale bluish spots; whole throat, chest, and an- 

 terior part of the abdomen washed with very dark blue. 



Variation: — The females are similar to the males but the colors 

 are generally brighter. A young specimen (M. C. Z. 6087, same data 

 as above) dift'ers somewhat from the adults. Instead of the pale 

 lateral spots, there is present a pale stripe on each side of the body. 

 The flanks are blacker than the back and there are no series of light 

 spots on its lower edge. The ventral surface is washed with blue- 

 gray. 



Remarks: — The description of the scutation was taken from an 

 adult male that measured one hundred and fifty-four millimeters 

 from snout to vent; the color notes from a slightly larger individual. 



Habitat: — Confined to the island of Dominica where it is found 

 commonly just outside of the town of Rouseau, " especially in the 

 hills among the plantings of cocoa trees." (Ruthven, in litt.). 



List of specimens examined. 



No. of 

 M. C. Z. speci- 

 No. mena Ages Sexes Locality Date Collector Remarks 



6087 3 all d" Dominica, B. W. I. 1879 S. Garman Types 



Descrip. 

 10571 1 ad. d' Dominica, B. W. I. 1914 A. G. Ruthven Descrip. 

 U. of 

 Mich. 



^"^ ad. 9 Dominica, B. W. I. 1914 A. G. Ruthven 



