36 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 92 



moderately large, 70 to 82 dorsals between occiput and beginning of 

 tail, 16 to 20 in the distance between end of snout and occiput ; males 

 with a row of large squarish black blotches on the shoulder region con- 

 tinuing down the sides and fading out rapidly ; faint traces of two 

 more rows of squarish blotches on the back. 



Type. — U.S.N.M. no. 81277, an adult male from Man of War Bay, 

 Great Inagua Island, collected on August 8, 1930. 



Description of the type. — Head shields large, slightly ridged ex- 

 cepting those which border the rostral ; four scales (an internasal and 

 three prefrontals) in a line between the rostral and the beginning of 

 the supraorbital ring ; prefrontals and internasals eml)racing a partly 

 discontinuous medial series of three scales, the first small and not 

 touching the rostral ; prefrontals separated from the canthals by a 

 series of rather small scales ; two canthal scales, the second much the 

 larger, followed by four su^jerciliaries, the third the longest, the last 

 two rather small : seven bluntly ridged supraoculars, separated from the 

 frontals by a single row of keeled scales and from the superciliaries 

 by two rows of scales except posteriorly where there is a single row ; 

 frontals moderate in size, mutually in contact along their entire inner 

 borders ; occipital small, bordered on each side by two distinct parietals, 

 the inner about half the size of the outer, which is about three times 

 the size of the occipital ; a transverse series of about eight postparietal 

 scales, smallest at the nape, enlarging and becoming ridged and tuber- 

 cular laterally, the outermost one lying along the posterior border of the 

 outer parietal and nearly as large as the occipital ; four upper and five 

 lower labials to a point below the center of the eye ; temporal scales 

 rather uniform in size, those above the ear not enlarged; anterior 

 border of the ear with three unequal projecting scales, the longest 

 reaching one-third of the distance across the tympanum ; dorsal scales 

 moderately large, imbricate, mucronate ; laterals very much smaller 

 than the dorsals, the gradation in size being rather rapid; ventrals 

 very slightly smaller than the dorsals, smooth, their posterior borders 

 scarcely denticulate ; about 70 dorsal scales from the occiput to a point 

 directly above the vent ; about 16 dorsal scales equivalent to the distance 

 from snout to occiput ; nuchal scales moderately small, those behind 

 the ear very minute and sharply tubercular ; those in the shoulder 

 folds keeled like the dorsals but small ; a distinct lateral fold present. 

 The adpressed hind limb reaches to the anterior corner of the eye. 

 Digits compressed, the fourth toe with 25 tricarinate lamellae. A very 

 distinct dorsal crest beginning at the occiput and continuing unbroken 

 to the end of the tail, increasing slightly on the posterior part of the 

 body and highest on the distal half of the tail ; the caudal scales keeled 



