8. CALLISAURUS 141 



iorm a series of curves when seen from above. Infralabials 

 small, juxtaposed. Below them, one or more series of flat 

 sublabial plates. Gulars granular and smooth, growing 

 larger and imbricate on posterior fold. Back and sides cov- 

 ered with small flattened granules, which change gradually 

 into much larger smooth ventrals. A dermal fold usually 

 extending along each side between limbs. Tail of moderate 

 length, much flattened, its scales slightly imbricate, and 

 along its edge, pointed. Limbs very long and slender. Pos- 

 terior edges of second, third and fourth toes with fringe 

 of pointed scales. Ear-opening large, without denticula- 

 tion. Femoral pores varying from 19 to 20, in a single 

 series on each thigh. 



The general color above is grayish, dotted, spotted and 

 reticulated with yellowish white, reddish brown and gray. 

 The top of the head is yellowish gray, clouded with darker 

 gray posteriorly. The upper surfaces of the forearm, lower 

 leg and tail are crossed by more or less undulating bands 

 of dark brown. A dark line, bordered above and below 

 with white, runs along the back of the thigh. The throat 

 is yellowish white, with diagonal gray markings. The lower 

 surface of the tail is white with about nine cross-bars of 

 intense black. The belly is whitish. Males have a large 

 blue patch, marked with three oblique wedge-shaped black 

 bars on each side, the posterior bar being continued back 

 along the belly nearly two-thirds the distance to the thigh. 



Length to anus 77 



Length of tail 93 



Snout to back of interparietal 13 



Snout to ear 1 5 



Width of head 12 



Fore limb 37 



Hind limb 62 



Base of fifth to end of fourth toe ..25 



