106 



Lacertidiv. 



juxtaposed or subinibricate, strongly keeled, much larger than the 

 scales on the upper part of the sides ; 'M to 56 scales across the middle 

 of the body, usually 39 to 48. Ventral plates mostly a little liroader 

 than long, some occasionally much broader than long, usually iu 

 regular longitudinal and feebly angular transverse series ; 28 to 35 

 transverse series, the longest of vphich contain usually 12 plates, 

 sometimes 14, very rarely 10. 14 to 20 femoral pores on each side,* 

 usually 14 to 18. 19 to 22 lamellae under the fourth toe. Basal 

 upper caudal scales often a little broader than long ; 22 to 30 caudal 

 scales in the fourth or fifth whorl. 



Adult grey or pale reddish brown above, with numerous round light 

 spots, or with dark and light spots, often with three darlv longitudinal 

 streaks and with a dark lateral band spotted with white ; Ijasal part of 

 the tail with three dark streaks. Young usually with four whitish 

 longitudinal streaks on the upper surface and one on each side ; 

 sometimes closely spotted with white and with merely the lateral white 

 streak, as in the tyjncal form. 

 Measurements (iu millimetres): 



From end of snout to vent 



fore Hmb . 



Length of head 



Width of head 



Depth of head ... 



Fore linili ... 



Hiud limli .... 



Foot 



Tail 



1. J", Dakar. 2. 9 , Dakar. 3. ?, Senegal (type). 

 Habifat. — West Africa, from Mauritania to Cape Verd. 



Partictilirs of Spcr 



TSxamined. 



Forma typica. 

 $ Cairo . 

 ? „ - . • 



s 



,, Giza, near Cairo 



Sometimes 12 or 13 according to Boettger. 



