Lacerta. SS'.i 



No pterygoid teeth. 



Gular scales granular, smooth or faintly keeled, larger, flat, and 

 smooth towards the collar, 22 to 43 between the symphysis of the 

 chin-shields and the median collar-plate ; no gular fold. Collar 

 serrated, composed of 6 to 9 plates. 



Scales on nape granular and feebly keeled, on back rather large, 

 rhombic, obtusely and diagonally keeled ; lateral scales rather smaller, 

 more or less distinctly keeled down to the ventrals ; interstitial granules 

 much developed ; o2 to 45 scales across middle of body * ; 25 to 33 

 ti'ansverse series, in the middle of the back, correspond to the length 

 of the head ; 2 or 3 transverse series, on the side, correspond to a 

 ventral plate. Ventral plates overlapping, with notches between their 

 posterior borders, in 6, rarely 8,t longitudinal series, the plates of the 

 second series from the median line a little broader than the others, 

 and 27 to 31 transverse series. Preanal shield moderate or rather 

 small, bordered by a semicircle of 6 to 8 sinaller shields ; a second 

 semicircle sometimes present. 



Scales on upper surface of tibia keeled, as large as or a little smaller 

 than dorsals. lO to 14 femoral pox-es on each side.+ 26 to 32 lamellar 

 scales under the fourth toe. 



Caudal scales strongly keeled, pointed behind, in more or less 

 distinctly longer and shorter whorls alternately, 22 to 26 in the fourth 

 or fifth whorl behind the postanal granules; from the 14th or 15th 

 whorl, and on 14 to 20 whorls, the scales become much broader, 

 forming 6 or 8 longitudinal dorsal series, thicker, rugose, and more or 

 less distinctly serrated on the posterior border, mucronate, more 

 strongly keeled, and raised posteriorly, forming spines directed 

 upwards and backwards. 



Some specimens are green above, uniform or with a few black spots 

 on the posterior part of the back, or with black vermiculations on the 

 sides of the head, neck, and anterior part of body. Others are green 

 with a wide-meshed black network. Others are olive with 16 to 20 

 transverse series of round pale green black-edged ocellar spots (from 

 occiput to base of tail) each consisting of 10 or 12 spots, which may 

 run together and foi'm cross-bars which, on the neck, or also on the 

 anterior part of the body, may be separated by black bars of equal 

 width or narrower. Head green or olive above, uniform or spotted 

 with black, the temples often with black vertical bars. Two specimens 



* 46 in the type of L. langi. 



t Female from the Ivory Coast (Paris Museum). These additional plates 

 are keeled. 



+ 9 in the type of L. langi. 



