ART. 6 HAITIAN HEEPETOLOGICAL COLLECTION COCHEAN 7 



narrower and appreciably longer than those of dorsal crest; height 

 of the crest-scales on the middle of the back IJ times the height 

 of the rostral, 6 to the distance from end of snout to anterior edge 

 of tympanum; about 35 scales in the dorsal crest between shoulder 

 and rump; throat covered with scales similar to the ventrals but 

 smaller; sides of neck with numerous folds; a large transverse fold 

 underneath neck and a longitudinal one on each side of the body; 

 upper surface of front limbs and femur of hind limbs with slightly 

 imbricated, keeled scales, much larger than the dorsals ; on the lower 

 arm about 50 to the distance from the end of snout to anterior edge 

 of tympanum; on the front of the tibia from the knee half way to 

 the foot the scales greatly increasing in size, each bearing a long, 

 sharp spine pointed backwards, partly surrounded by small, irregu- 

 larly placed shields bearing a small spine; scales abruptly diminish- 

 ing in size on the back of the leg ; a single series of 18 femoral pores ; 

 inner side of second toe with one comb, of third toe with two combs, 

 the proximal one being much the larger ; a tendency to form 3 combs 

 on the fourth toe; nails long and sharp; tail covered with large 

 obliquely keeled scales in vertical rows forming prominent verticils 

 which on the half of the tail nearest the body become spiny and very 

 much enlarged between the fifth and tenth scales, counting trans- 

 versely from the caudal crest ; about 3 rows of scales between verticils 

 at their greatest enlargement and 5 near the caudal crest and beneath 

 the tail where the verticils are less prominent ; verticils becoming less 

 well-marked toward extremity of tail. 



Dimensions 



Mm. 



Total length 756 



Tip of snout to vent 326 



Vent to tip of tail 430 



Tip of snout to ear 70 



Width of head 50 



Fore limb 136 



Hind limb 186 



Vertical diameter of tympanum 12 



Coloration: Head and nuchal region light; throat black; fore- 

 limbs black above, lighter underneath; a light patch on shoulder 

 bordered behind with dark extending to base of nuchal crest; on 

 the back a pattern of about 9 light bands bordered with dark arising 

 from the dorsal crest; five of these extending obliquely down- 

 ward on sides; pattern indistinct on sides becoming marked beneath 

 in 5 or 6 dark transverse streaks alternating with broader bands of 

 light; sides, back and anterior surface of femur spotted with black; 

 hind legs and tail light. 



