THE HERPETOLOGY OF HISPANIOLA 185 



separated from one another by a pair of internasals which are slightly 

 larger than either prenasal; a pair of scales immediately behind the 

 internasals, slightly larger than them and making broad contact with 

 them behind and slight contact with one another in the midline; 

 three or four large scales forming the posterior two-thirds of the frontal 

 ridges, these scales two to three times as large as the other scales on the 

 top of the snout which are irregularly polygonal; supraorbital semi- 

 circles separated from each other by a single scale at their midpoint 

 and by a wedge of scales immediately before and behind this point; 

 occipital scale about five-sixths as long and three-fourths as broad as 

 the ear opening; occipital scale entirely surrounded by small scales 

 and separated from the supraorbital semicircles by from four to six 

 rows of these small scales; supraorbital discs composed of eight 

 enlarged scales, six of these being much larger than the other two; 

 supraorbital discs separated from the supraorbital semicircles for 

 almost their entire length by a. single row of small elongate scales; a 

 single narrow keeled scale longer than the greatest length of the 

 supraorbital disc forming the anterior superciliary margin of the orbit, 

 this scale continuous with a row of seven strongly keeled overlapping 

 scales which form the canthus rostralis of either side ; a single enlarged 

 scale mesial to the anterior part of the elongate superciliary scale, this 

 scale separated by two or three rows of small scales from the supra- 

 orbital disc; supraorbital region posterior to the elongate superciliary 

 scale and the supraocular disc covered with many small granular 

 scales. Loreal region covered with regular rows of ovoid scales, the 

 rows increasing from two in front to seven immediately before the 

 orbit ; subocular semicircles formed of five or six enlarged keeled scales 

 and a series of smaller ones, which form the posterior part of each 

 semicircle; three of these enlarged scales in contact with the supra- 

 labials; supralabials 7 or 8, the sixth and seventh and part of the fifth 

 below the eye. Temporal granules about the same size as those on 

 the sides of the body, distinctly smaller than those along the midline 

 of the back; supratemporal line formed of two to three rows of scales 

 only slightly larger than the adjacent temporals; these supratemporal 

 scales about half or a third as large as the small scales forming the 

 posterior section of the subocular semicircle. A band of from two to 

 four enlarged keeled scales extending the length of the back in the 

 midline; scales on the sides of the body only one-half to one-third as 

 large as the mid-dorsal scales, but gradually increasing in size toward 

 the midline; a very feeble indication of a nuchal fold. Scales on the 

 abdomen smooth, imbricate, two to three times as long and three to 

 four times as broad as the enlarged scales of the mid-dorsal line; scales 

 on the throat ovoid; much smaller on the sides of the throat than near 

 the midline; an average scale near the midline of the throat about one- 

 half as large as the abdominals; scales on the extreme anterior part of 



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