8 ON THE WEST INDIAN TEIIDiE 



Ameiva ATRATA. 

 A. corvinoB var. n. 



Nostril in the posterior part of the anterior nasal ; oc- 

 cipitals short, five to seven ; supraoculars four, posterior 

 half as large as the anterior ; supraciliaries seven ; loreal 

 not divided ; labials six. Lower labials five to six ; sub- 

 mentals one anterior and five to six pairs ; slightly enlarged 

 gular granules in about twelve series across the throat ; 

 mesoptychium with a band of about half a dozen series, 

 in which the largest ones are toward the sides of the neck 

 and larger than the gulars. Dorsal granules small, smooth. 

 Ventrals in fourteen rows ; trausverse series thirty-six. 

 Preanal plates in a transverse scries of four to twelve, 

 outer very small, median pair large ; there is a small plate 

 behind the suture of the median pair, and in front of this 

 suture there is another pair of large plates placed one in 

 front of the other. Around the hitter pair there is an arch, 

 of five or more smaller scales, which continues laterally as 

 transverse series. Four series of very small brachials, 

 not continuous with the five series of comparatively small 

 antebrachials more than half of the larger of which are sub- 

 divided. Post brachials few, small, similar to brachials. 

 Nine or ten rows of femoral plates ; four to five rows of 

 tibials, outer large. Femoral pores twenty-nine to thirty. 

 Digits feebly serrated ; outer toe a little longer than the 

 inner. Dark brown above; dark olive beneath. 



In comparison with type specimens of A. corvina from 

 Sombrero and from Ilayti, this form shows greater enlarge- 

 ment of granules on throat and mesoptychium, larger scales 

 in the group on the chest wedged between the pectoral 

 plates, on the median line behind the fold, and larger 

 brachials. The third supraoculars are not separated from 

 frontal and postfrontals. On all the specimens of A. cor- 



