190 BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM 



lar; a weak lateral ridge extending from the posterior corner of the 

 eye, covered with a double row of hexagonal scales, some of which 

 are keeled; a group of enlarged, keeled scales in front of the tympa- 

 num, which is equal to half the eye-opening at its greatest diameter; 

 no projecting scales on the tympanic border. 



"Body stout, distinctly depressed, its dorsal surface covered with 

 tubercular granules with the two middorsal rows enlarged and keeled 

 from the shoulder-level almost to that of the groin ; no nuchal or dorsal 

 folds; laterals granular, very small, not differentiated from the dorso- 

 laterals; chin covered with rounded granules, large anteriorly, becom- 

 ing much smaller posteriorly; a heavy gular fold running across the 

 throat and behind the ears and ending in front of the shoulders in 

 numerous heavy, plicate wrinkles, in which the granules are very 

 minute; another fold extending transversely inwards across the front 

 part of the chest ; the longitudinal gular fold scarcely apparent in this 

 specimen; the skin between these folds, as well as that of the chest, 

 covered with small, smooth, imbricate scales ; scales of the belly also 

 smooth, imbricate, but larger than those of the chest; no femoral or 

 preanal pores; (a pair of prominent, enlarged postanal scales in the 

 male); tail compressed, apparently not prehensile, verticillate, with 

 about five rows of smaller, keeled scales between verticils on the side 

 of the tail, and about three enlarged scales to a verticil on top, the 

 profile of these scales appearing very slightly serrate; fore and hind 

 hmbs granular above, scales below like the belly; digits dilated and 

 depressed, with smooth lamellse inferiorly, the distal joint narrower 

 and compressed, raised above the penultimate; about 30 transverse 

 lamellae under the fourth toe. The hind limb being adpressed, the tip 

 of the fourth toe reaches to the center of the eye. 



"Dimensions. — Snout to vent, 46 mm.; tail (reproduced), 43 mm.; 

 hindleg, 37 mm.; foreleg, 23 mm.; width of body, 14 mm.; depth of 

 body, 10 mm.; width of head, 10 mm.; snout to posterior border of 

 tympanum, 14 mm. 



" Coloration in alcohol. — Upper surfaces darp sepia, with a paler sepia 

 area along the mid-dorsal region ; a waxy clove brown band beginning 

 behind the eyes and running upwards and backwards to fade out at the 

 pale sepia area on the nuchal region ; a pair of small clove brown spots 

 anterior to them on the nape; four pairs of large, irregular, rhombic 

 clove brown spots on the body, the anterior pair the most irregular in 

 outline, the others larger and more definite; a continuation of these 

 paired spots on the tail for a short distance; dark crossbars on upper 

 surfaces of fore and hind limbs ; labial scales with a brown spot in the 

 middle of each ; throat and ventral surfaces heavily mottled with light 

 and dark drab; scales between the folds across the throat dull burnt 

 umber; a wide band of black turning posteriorly to indigo blue across 

 the anterior half of the belly; lower surfaces of tail dark drab. 



