100 Lacerfi(h(.\ 



4 upper labials ■' auterior to the subocular, the lower border of which 

 is I to '} the length of the upper. Two large upper temporals ; 

 temple covered with rather small or moderately large shields, 30 to 

 50 in number, among which a feebly enlarged masseteric may often be 

 distinguished ; tympanic shield small or absent. 



Pterygoids constantly toothed, the teeth in 2 or 3 longitudinal 

 series. 



6, rarelv 5 or 7, pairs of chin-shields, the 2 or 3 auterior in contact 

 in the middlet ; 26 to 39, usually 29 to 35, gular scales in a straight 

 line beween the symphysis of the chin-shields and the median collar- 

 plate ; gular fold absent or feebly marked. Collar strongly serrated, 

 formed of 9 to 14 plates, usually 10 to 13. 



Scales granular, as long as broad or a little longer than broad, 

 smooth, or faintly keeled on the posterior half of the body ; 63 to 80 

 scales across the middle of the body, usually 66 to 75 ; 3 or 4 lateral 

 scales correspond to a ventral plate ; 40 (females) to 62 (males) trans- 

 verse series of scales, in the middle of the back, correspond to the 

 length of the head. Ventral plates overlapping, the edge of the 

 transverse series broken by more or less distinct notches between 

 the plates, in 8 or 10 longitudinal series ; the plates of the inner series 

 from the median line usually narrower than the 2 or 3 next to it, 

 which are 1 .V to 2 times as broad as long, the fourth and fifth 

 sometimes equal in size ; 28 to 34 transverse series (28 to 32 in males, 

 31 to 34 in females). Preanal plate sometimes rather large, some- 

 times rather small, sometimes longitudinally divided into tw^o,+ 

 bordered by 2 or 3 semicircles of small plates. 



Scales on upper surface of tibia as large as doi'sals or a little larger, 

 smooth or feebly keeled. 11 to 15, raiely 16, femoral pores on each 

 side. 21 to 26, usually 22 to 25, lamellar scales under the fourth 

 toe, divided except the distal, bearing rather strong tubercles in the 

 young. 



Caudal scales forming whorls of equal or nearly equal length, the 

 upper with strong straight keel, ending in a point which may be very 

 obtuse ; lower scales rounded or truncate behind, feebly keeled in the 

 adult, smooth in the basal wdiorls ; 40 to 48 scales in the fourth or 

 fifth whorl ; sensory apical pits often present. 



Young olive-brown to green above,§ neck, body, limbs, and base of 

 tail with numerous black-edged ocelli which are usually arranged in 



* 3 in a male fi'Oin Silos. 



t 2 in about 25 per cent, of the specimens examined. 



X In two specimens from Cannes. 



§ Grey or brown, never green, at birth, with the centres of the ocelli white. 



