460 bulletin: museum of comparative zoology. 



longer than the third toe with claws; ^ tail covered with keeled scales 

 in rings, scales being straight and the keels nearly parallel with the 

 sides of the scales; about forty-three scales in the fifteenth ring from 

 the base." 



Dimensions. 



mm. 



Total length 288 



Snout to vent 95 



Tail 193 



Snout to ear 23 



Width of head 15 



Fore leg from axilla 35 



Hind leg from groin 76 



Outer toe without claw 9 



Inner toe \,'ithout claw 5 



Description:— Type U. S. N. M. 10113. Tobago, West Indies; 

 F. A. Ober. 



Ameiva atrigularis Garman. 



Description:— Adult male; Type M. C. Z. 6080. Trinidad, B. W. I.; 

 1879; C. S. Cazabon. 



Rostral forming about a right angle behind; nostril between the two 

 nasals; anterior pair of nasals in broad contact behind rostral; fronto- 

 nasal longer than wide in broad contact with the loreal; prefrontals 

 in broad contact; frontal in contact with the first two supraoculars, 

 with the second for its entire length; a pair of frontoparietals separated 

 posteriorly by one or two rows of granules from the third supraocular; 

 five subequal occipitals, the two adjacent to the median slightly larger 

 than the others; four supraoculars, the first separated from the loreal; 

 three posterior supraoculars separated from the supraciliaries by a 

 single row of granules ending anteriorly in a large granule; last supra- 

 ocular separated from the outer occipitals by two or three rows of 

 granules; five and six large supralabials; six infralabials; between 

 infralabials and chin-shields a wedge of one or two rows of granules 

 extending anteriorly half the length of the second chin-shield; chin 

 and throat covered with small granules, a broad group in the median 

 posterior region formed of large scales but varying gradually into the 

 others; on the area between the two throat folds three or four rows 



' In exul foxirth toe extends beyond third not more than length of third toe without 

 claw. 



