THE HERPETOLOGY OF HISPANIOLA 175 



thickened posteriorly; postanal scales well developed; no nuchal or 

 dorsal fold. 



Dimensions: Head and body, 71 mm.; tail, 151 mm.; snout to pos- 

 terior ear, 22 mm.; snout to center of eye, 13 mm.; width of head, 13 

 mm. ; foreleg, 29 mm. ; hindleg, 48 mm. 



Color (in alcohol): Entire upper surfaces Nile blue, deepening to 

 lilac and azure on the lateral regions and lightening beneath to pale 

 turquoise blue on throat and chest and changing to pinkish buff on 

 the hind legs and tail. From the eyes forward the snout is light clay 

 color. No spots or vermiculations of any kind are evident except on 

 the sides of the legs and tail, where indistinct vermiculations of a 

 slightly deeper tone of Nile blue may be made out. Skin of gular fan 

 jet black, the scales pale blue in startling contrast. 



Variations. — In a genus where an immense amount of variation in 

 the species is the rule, rather than the exception, it is gratifying to find 

 a species that is quite constant in coloration and squamation, as is the 

 case with Anolis chloro-cyanus. A remarkably uniform head scalation 

 exists in this species. There may be one or tw T o rows of scales separat- 

 ing the supraorbital semicircles from each other, and three or four 

 small scales separating the occipital plate from the supraorbital semi- 

 circle. The loreal rows may be either three or four in number, the 

 former number being about twice as frequently met with. The occip- 

 ital plate is always small and inconspicuous. 



In coloration nearly the same degree of uniformity is found. Oc- 

 casionally a young lizard will have a fairly broad light dorsal stripe; 

 otherwise head and body are immaculate. The tail often has the 

 median crest scales with alternate light and dark spots, and the sides 

 of the tail have some dark vermiculations as do the legs and arms 

 in certain examples. 



The skin of the gular fan is invariably black even in the youngest 

 specimens, and the fan is but little less prominent in females than in 

 males, so that one has to ascertain the presence of enlarged postanal 

 scales in order to be certain of the sex in some cases. The postanal 

 scales are frequently bordered with black posteriorly. 



The two lizards from Point-a-Raquettes, Gonave Island, M.C.Z. Nos. 

 25522 and 25523, are a little different from their mainland relatives. 

 One of these has larger scales and granules everywhere on the body and 

 limbs than the mainland chloro-cyanus. The snout is not quite so long, 

 and there is but one series of scales between the supraorbital semicir- 

 cles. The tail becomes suddenly black just behind the anus. The 

 other, the smaller of the two, has also one row of scales between the 

 supraorbital semicircles, as well as larger ventral scales and dorsal 

 granules. Its entire coloration is a very dark purplish drab, and the 

 tail is not darker than the rest of the bod v. 



