THE HERPETOLOGY OF HISPANIOLA 239 



LEIOCEPHALUS PERSONATUS LOUISAE Cochran 



Figures 64, 66c; Plate 7, A 



1934. Leiocephalus peronatus louisae Cochran, Occ. Pap. Boston Soc. Nat. Hist., 

 vol. 8, p. 177.— Barbour, Zoologica, vol. 19, No. 3, p. 121, 1935; Bull. Mus. 

 Comp. Zool., vol. 82, No. 2, p. 136, 1937. 



Original description. — "Diagnosis. — No lateral fold; three scales 

 between rostral and supraocular ring; frontals and prefrontals rugose; 

 throat with numerous scattered black crescentic spots, each extending 

 over one or two scales; hindleg reaching to between ear and eye; 

 dorsal scales relatively small, about 15 in a head-length. 



"Type. — An adult male, M. C. Z. 37551, from Saona Island, 

 Dominican Republic, collected April 8, 1934, by the Utowana Expedi- 

 tion. 



"Description oj the type. — Head shields enlarged, the anterior 

 slightly rugose, the posterior ones more strongly ridged; three scales 

 (an internasal and 2 prefrontals) between the rostral and the supra- 

 orbital ring; posterior prefrontals much the larger; nasals in contact 

 with rostral; internasals somewhat elongate, barely separated from 

 each other by the first of a series of three median scales; prefrontals 

 separated from the canthals by a wedge-shaped scale; two heavy, 

 rounded canthals followed by three long and narrow superciliaries 

 which precede a short one and a longer terminal one; six distinctly 

 ridged supraoculars separated from the superciliaries by two irregular 

 rows of small keeled scales, and from the frontals by a single, quite 

 regular row of scales; occipital small, bordered by two distinct pairs 

 of parietals on each side, the outer the smaller; the inner parietal plate 

 about four times the size of the occipital, and in contact with its 

 fellow behind the occipital; a group of five or six small latero-nuchal 

 scales, none of them more than one-fourth the area of the outer 

 parietal; four upper labials to a point below the center of the eye, 

 middle of fifth lower labial under center of eye; temporal scales 

 gradually increasing in size, the last one, just above and in front of 

 the ear, the largest and most conspicuous; anterior border of the ear 

 with five coarse projecting scales, the middle ones the largest. Dorsal 

 scales moderate in size, imbricate and mucronate; laterals somewhat 

 smaller than the dorsals ; ventrals considerably larger than the dorsals, 

 smooth, their posterior edges denticulate; about 48 scales around the 

 middle of the body; about 58 scales from the occiput to a point 

 directly above the vent; about 15 dorsal scales the equivalent of the 

 distance from snout to occiput; nuchal scales small, those on the 

 sides of the neck like the dorsals, those behind the ear keeled and 

 imbricate, not granular. Shoulder folds present; no lateral folds. 

 The adpressed hind limb reaches to half-way between the ear and the 

 eye. Digits compressed, the fourth toe with 24 tricarinate lamellae. 



