SPECIFIC CHARACTEES OF BRITISH LIZARDS 93 



and two-fifths to once and two-thirds as long as head 

 and body; caudal scales large, upper strongly keeled 

 and pointed posteriorly. Brown, yellowish, or reddish 

 above in the adult, with small darker and lighter 

 spots ; frequently a blackish vertebral streak and a 

 dark lateral band edged with yellowish ; lower surfaces 

 orange or vermilion in the male, largely spotted with 

 black ; yellow or pale orange in the female, imma- 

 culate or scantily spotted with black. Newly-born 

 young almost black, which colouration sometimes per- 

 sists in the adult. 



Total length . . . . 



Head 



Width of head 



From end of snout to fore-limb 

 Froip end of snout to vent 

 Fore-limb. . . . . 

 Hind-limb . . . . 

 Tail 



Northern and Central Europe ; Northern Asia. 



" Lacerta agilis, the Sand Lizard. 



" Habit stouter, snout shorter than in L. viridis. 

 Eostral not touching the nostril ; 1 or 2 post- 

 nasals ; frequently 2 superimposed anterior loreals ; 

 normally 4 upper labials anterior to the sub- 

 ocular — no granules between the supra-oculars and 

 the supra-ciliaries ; occipital small, shorter and usually 



