CROCODILIANS, LIZARDS, AND SXAKES. 283 



latter to the posterior border of the femur. Tlic upper lip has a sub- 

 acute median angle whicli projects beyond the lower lip. The profile 

 descends in a nearly straight line to the depressed and slightly promi- 

 nent border of the muzzle. The fifth finger extends a little beyond 

 the extremity of the first, and the extremity of the fifth toe marks a 

 ])oiiit between the extremities of the first and second. 



There are thirty-two femoral pores in a continuous line and a second 

 series immediately posterior to it, in which we can count fifteen addi- 

 tional pores. Of these, ten near the middle of the series are consecutive. 



There are two roAvs of rather small frontal scales which posteriorly 

 follow the orbital border, and are separated from the rather small occii)- 

 ital by two rows of smaller scales. There are about eleven rows of 

 scales on the supraorbital region, which are smaller than the frontals, 

 excepting three rows inside the center of the region. The scales on 

 the muzzle are larger, nine rows intervening between the canthal rows 

 at the middle. Four rows between the nostrils. Canthal row consist- 

 ing of one long and one small scale, the latter below the nostril. Six 

 loreal rows. Six infraorbital plates, the third below the orbit and 

 much longer than the others, and, like them, keeled. Three supercilia- 

 ries in front of and three posterior to the median or key scale. Supe- 

 rior labials oblicpie, over]api)ing each other forward above and obtusely 

 keeled longitudinally. Scales of the quadrate region rather small. 

 Auricular meatus protected by six elongate free scales which spring 

 from the anterior border. The meatus is about equal in vertical diam- 

 eter to the eye slit. Inferior labial scales smooth, in contact below 

 with a series of infralabials which exceed them in size, which become 

 posteriorly several rows. Gular scales small, a little larger at the mid- 

 dle of the throat. All the scales of the head smooth. 



The dorsal scales are small, smooth, smaller than those of the belly, 

 and transversely diamond-shaped. The scales of the inferior surface 

 are smooth, and are arranged in open chevrons with the angle forward. 

 The greater number are parallelogrammic, but the anterior are regu- 

 larly diamond-shaped. Those of the anterior pectoral region are 

 reduced in size, and are smaller than those of the posterior gular 

 region. The latter are similar to the edge of the collar, except four 

 scales in the middle, which are a little larger. Collar with uniform 

 border. There are some longitudinal folds on the side of the neck, but 

 as the specimen has been somewhat dried, it is not certain whether 

 they are present in life. The scales on the anterior faces of the 

 humerus and femur are enlarged and their acute apices are free and 

 more or less recurved. They graduate into the other scales on the 

 humerus, which are rather larger than those of the dorsal region. On 

 the femur they graduate into those of the inferior side, which are larger 

 than those of the dorsum, but are separated rather abruptly from those 

 of the superior face, which equal those of the dorsum. The scales of 

 the tibia are about cijual to those of the belly. A few rows on the 



