94 BRITISH LIZARDS 



narrower than the inter - parietal ; temples covered 

 with flat scales ; 2 or 3 large temporals in contact 

 with the parietal ; no tympanic. Gular fold feebly 

 marked, or absent. 14 to 22 gular scales on a line 

 between the collar and the third pair of chin shields ; 

 collar with serrated edge, composed of 7 to 11 plates. 

 Dorsal scales hexagonal, strongly keeled, larger on 

 the sides, where they are feebly keeled or smooth ; 

 2 or 3 lateral scales correspond to the length of 

 a ventral plate; 34 to 52 scales across the middle 

 of the body. Ventral plates in 6 or 8 longitudinal 

 series, the second series on each side from the median 

 ventral line the largest ; 25 to 32 transverse series. 

 The hind-limb never reaches beyond the elbow of 

 the adpressed fore - limb. Foot not, or but very 

 slightly, longer than the head. Femoral pores, 10 

 to 18. Tail once and a half to once and two-thirds 

 the length of head and body ; upper caudal scales 

 strongly keeled, pointed posteriorly. 



" Northern and Central Europe ; Western Asia. 



"(a) FORMA TYPICA. 



" Usually a single post-nasal and two superposed 

 anterior loreals, the three shields forming a triangle. 

 Median dorsal scales very narrow, sharply differentiated 

 from the broader laterals; 34 to 46 scales across 

 the middle of the body. Usually a single semicircle 

 of scales bordering the anal, none of which are much 

 enlarged. Young greyish brown above with longi- 



