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S A U R I A. 



the tail, the scales resemble those of the back, whilst they are shorter 

 on the conical and tapering portion, and keeled to the very tip, towards 

 which they become quite slender. The abdominal scales are well deve- 

 loped and smooth, sublanceolated, notched or bifid posteriorly ; they are 

 smaller and irregular upon the preanal region, but the preanal margin 

 is provided with a row of conspicuously larger ones; their size is quite 

 reduced upon the postanal region, but soon increase in size along the 

 inferior surface of the tail, exhibiting a bifid or notched posterior 

 extremity, as on the abdomen. The upper surface of the fore limbs 

 is covered with scales, smaller than those of the back, though keeled, 

 and more acute posteriorly ; they become quite- small, but still carinated, 

 upon the posterior and inferior aspects of the forearm and palm of the 

 hands ; they are larger and rather smooth upon the anterior aspect of 

 the arm and carpus, and carinated upon the posterior aspect of the 

 same organs. The fingers are surrounded with four series of carinated 

 scales, one above, two sideways, and one beneath ; the inner or first 

 finger is the smallest ; the fifth or outer one is the next in length ; 

 then, the second, fourth, and third, which is the longest. The naila 

 are well developed, compressed upon their base, conical, curved, and 

 acute at the apex. The upper surface of the hind limbs is likewise 

 covered with carinated scales, smaller than those of the back ; they 

 are smaller on the tarsus than on the leg proper, and smaller on the 

 leg than on the thigh. On the inferior surface of the thigh and leg, 

 the scales are well developed, sublanceolated, and smooth, whilst they 

 are small and carinated on the soles of the feet ; they are very small, 

 subgranular on the posterior aspect of the thighs. The squamation of 

 the toes is similar to that of the fingers, there being an upper series, 

 a lateral, and an inferior series : the latter provided with a double 

 keel. The first or inner toe is the longest ; the second the next in 

 length ; then, the fifth or outermost follows the third and fourth, which 

 is the longest of all. 



The ground color is of a dusky yellow : the lateral series of raised 

 scales being bright yellow. The dorsal space inclosed by these streaks 

 is marked with three series of chestnut-brown, black-margined spots. 

 The spots of the middle series are larger than those of the adjoining 

 series; they all are elongated and subovoid. The upper surface of the 

 head exhibits several transverse spots or bai's of bright yellow. Two 

 other series of spots may likewise be observed along the flanks, imme- 

 diately beneath the yellow streak ; they are smaller than on the back, 



