BARBOUR AND NOBLE: THE GENUS CYCLURA. 157 



Cyclura carinata Harlan. 



Plate 8, fig. 3, 4; plate 13, fig. 3, 4. 



Harlan, Journ. Acad. nat. sci. Phil., 1824, 4, p. 242, 250, pi. 15. 

 Barbour, Mem., M. C. Z., 1914, 44, p. 299. 



Diagnosis: — Nasals broadly in contact with the rostral. Pre- 

 frontal region covered by a pair of irregular supranasals; nasals and 

 supranasals of each side separated from each other by a single large 

 scale. Frontal, frontoparietal, and occipital regions covered by uni- 

 formly small scales, irregular in shape and strongly keeled. Supra- 

 orbital semicircles not differentiated but the scales of the supraocular 

 region smaller than the other supracephalic scutes. Two large, 

 vertically arranged canthal scales on each side. Dorsal crest broadly 

 interrupted on the shoulders and rump; the neck-crest half a centi- 

 meter high, the body -crest only three millimeters high; color above 

 brownish gray, with numerous but faint reticulations; head tinged 

 with blue, chest with smoky. 



Habitat: — Turks Island, Southern Bahamas. 



Description: — Adult male, M. C. Z. 1252 Turk's Island, Southern 

 Bahama Islands, 1862, A. S. Bickmore. 



Rostral as wide as the mental, broadly in contact with the nasals; 

 nasals of medium size, somewhat pentagonal perforated posteriorly 

 by a semicircular nostril; each nasal in contact with a large pent- 

 angular postnasal and a pair of irregular supranasals; nasals and 

 supranasals of each side separated from each other by a single, large 

 triangular scale, all the rest of the scales of top of head small and irre- 

 gular, no enlarged prefrontal, frontal or parietal scales; a very slight 

 indication of a supraocular disk; scales of the supraocular and supra- 

 ciliary region as well as the outer parietal region somewhat smaller 

 than the rest of the supracephalic scales; scales of the prefrontal, 

 frontal, and occipital region irregular and all about the same size, 

 while the scales of the supraocular and outer parietal regions are 

 uniformly smaller; occipital rather large and located well forward; 

 all scales of the top of head strongly keeled but hardly tubercular; 

 two large, vertically arranged canthal scales on each side; a well- 

 developed series of slightly keeled suboculars carried back a trifle 

 beyond the orbit, ten supralabials to the middle of the eye; a series 

 of three or four rows of small scales separating the supralabials from 



