CROCODILIANS, LIZARDS, AND SNAKES. 429 



occipital and divergent in direction. Occipital lioru straight, acute, 

 divergent, slightly grooved at base, directed posteriorly at an angle of 

 •15°. Scales of front fiat, rugose, large; those of supraocular series in 

 contact. jSTo angle connecting superciliary angles. Four conic scales 

 in a transverse series in front of occiput; a median occipital conic 

 scale. Ko prominent scales between the temporal series and the orbit. 

 Only live infralabials on each side, the last prominent and anterior 

 to the line of the larger subrictal. A conic scale or spine in the line of 

 the infralabials, behind the subrictal. Three rows of enlarged gulars 

 on each side, the external conic and acute, and continued to the gular 

 fold. Behind the line of the tympanic meatus two longitudinal rows 

 of scales, the inferior of two spiniform, the superior of five or six simply 

 conic. 



Five to eight rows of rtat-keeled scales on the median dorsal region; 

 some of which, forming an irregular row on each side, are much larger 

 than the others. External to these the scales are rounded and much 

 smaller, and are separated by granules. On each side of the middle 

 line are three rows (including the one above mentioned) of large, 

 prominent-keeled scales, well separated from each other. A single 

 series of free lanceolate scales forms a lateral fringe, w^hich begins 

 in front of the groin and returns to above the humerus, with an inter- 

 ruption above the axilla. Below this the scales are granular, and then 

 gradually enlarge into the ventrals, which are smooth and about as 

 large as the median dorsals. Superior sides of humerus and cubitus 

 covered with large keeled scales; femur and tibia above with small, 

 flat scales mixed with large accuminate ones. Tail with two series of 

 lateral marginal conic scales, the superior row sparse. Scales of supe- 

 rior surface of tail heterogeneous, but no produced cones. Scales of 

 inferior surfaces of limbs smooth, except those of palm and sole, which 

 are keeled. Lateral digital scales not produced. 



The extended hind limb falls considerably short of the axilla. The 

 tail is between once and twice the length of the head without horns. 

 Femoral pores 17 or 18 in each series, which are well separated on the 

 middle line. 



McasKrements (Cat. :^o. 11977).— Total length, 112 mm. ; length to vent, 

 85 mm.; length to gular fold, 17 mm.; length to base of occipital horn, 

 17 mm.; length to end of occipital horn, 23.5 mm.; width at temporal 

 region, 21.5 mm.; length of fore leg, 31 mm.; length of fore foot, 11 

 mm.; length of hind leg, 40 mm.; length of hind foot, 19 mm. 



Ground color brownish ashen, paler on the limbs and tail. A large 

 brown lateral nuchal spot, and three irregular cross bands on the back, 

 the third at the groin. Each crosa band displays a deep notch poste- 

 riorly, and the external j)ortiou extends posteriorly. Joining the one 

 behind it, causing the flanks to be entirely brown. No distinct cross 

 bands on limbs and tail; snout and muzzle brown; occipital horns 

 mahogany. Inferior surfaces cream colored, with a few indistinct dusky 

 spots on the abdomen. 



