178 BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM 



from the occipital by four very small scales; occipital about the size 

 of the ear opening, conspicuous only because it is surrounded by 

 much smaller scales, polygonal in shape, bordered posteriorly by 

 minute scales wliich rapidly merge into the dorsal granules; supra- 

 ocular disk composed of about a dozen unevenly matched flat scales, 

 which are separated from the supraorbital semicircles by one or two 

 series of small scales and from the superciliaries by two or three more 

 or less irregular series; can thus rostralis strongly projecting over the 

 loreal region and covered by six sharply keeled scales succeeded by 

 two others on the superciliary border, the last of this series much the 

 longest and not followed by any differentiated scales ; loreal rows five ; 

 five scales in the subocular semicircle, the fourth the smallest; nine 

 supralabials, the suture between the eighth and ninth coming directly 

 beneath the center of the eye; temporal granules smaller than the 

 dorsal granules, with an indistinctly differentiated patch of larger ones 

 forming the supratemporal line; back and sides covered with very 

 small, bluntly tubercular granules, about 50 to 55 rows along the dor- 

 solateral region equaling the distance between tip of snout and 

 center of eye; ventral scales about four times as large as the dorsal 

 granules, perfectly flat, slightly imbricate, hexagonal; throat covered 

 with small granules, which are tubercular and ridged; limbs covered 

 above with small scales ; below with granules, a few series of enlarged 

 scales on interior face of foreleg and on tibia; scales covering 

 hands and feet above enlarged, multicarinate; digital expansion wide, 

 about 28 lamellae under the second and third phalanges, about 47 

 under the whole toe; tail fairly long, slightly compressed, the median 

 scales distinctly enlarged, keeled, and forming a very low serrated 

 crest; the laterals arranged in well-marked verticils composed of 

 about six vertical rows of polygonal, elongate, slightly keeled scales 

 followed by a final row of larger scales, and topped by about five sub- 

 equal crest scales; the scales beneath the tail considerably enlarged 

 and heavily keeled; skin of the gular fan set with numerous minute 

 scales among which are scattered irregularly many small, slightly 

 tubercular scales, not placed in regular rows but much more crowded 

 together on the outer portions of the skin folds; edge of fan not thick- 

 ened posteriorly; postanal scales very well developed; a very faint 

 indication of a nuchal fold; no dorsal fold. 



Dimensions: Head and body, 64 mm.; tail, 138 mm.; snout to 

 posterior ear, 20 mm.; snout to center of eye, 12 mm.; width of head, 

 12.5 mm.; foreleg, 27 mm.; hindleg, 45 mm. 



Color (in alcohol): Head Nile blue above, shoulders and back pearl 

 blue with suffusions of heliotrope; limbs and tail heliotrope with 

 bars of pinkish buff especially conspicuous proximally; sides of 

 neck and body with numerous vertical olive-buff reticidations and 

 spots; a wide white stripe originating beneath the eye and continuing 



