106 Lacertidse. 



broad, usually feebly keeled, sometimes smooth, 65 to 85 in specimens 

 from Tunisia and Algeria East of Oran, 70 to 98 in specimens from 

 Oran and Morocco* ; 40 (females) to 72 (males) transverse series in 

 the middle of the back, correspond to the length of the head. Ventral 

 plates in 6 or 8 longitudinal seriest, the inner and the two outermost 

 on each side as a rule narrower than the other, which is 2 to 2^ times 

 as broad as long ; sometimes, when only 6 series are present, the 

 reduction may be due to the fusion of the plates of the two outer 

 series, as is well shown by a female from Batna ; in other cases 

 the second and third series from the median line are equal in width 

 and the fourth is narrower than the first ; 27 to 30 transverse series in 

 males, 28 to 33 in females. 



13 to 17 femoral pores on eacli side, very rarely 12, in specimens 

 from Tunisia and Algeria East of Oran, 15 to 22 in specimens from 

 Oran and Morocco. 22 to 29 lamellar scales under the fourth toe, 

 usually 23 to 26. 



36 to 44 caudal scales in the fourth or fifth whorl. 



There is a colour-dimorphism in the young. Most of them are 

 bluish green or greyish olive above with white dark-edged ocelli forming 

 8 or 10 longitudinal series, never running together into transverse 

 chains as in the typical form, sometimes with irregular black spots in 

 addition. Others are uniform green (Bona, G-uelma). 



Adult olive or green, uniform or spotted, vermiculated or speckled with 

 black, with or without the ocellar spots of the young, or with traces 

 of them, only exceptionally with blue spots on the sides, and in males 

 onlj', these spots smaller than usual in the typical form. J A female 

 from Imintamout is remarkable for the interruption of the black 

 network on the middle line of the back, thus producing the effect of a 

 light vertebral stripe.§ Head olive or green, uniform or with small 

 black spots. Tail olive or brown, often reddish posteriorly, frequently 

 with rather large black spots disposed irregularly. Lower parts 

 greenish yellow. 



* 74 to 100 in specimens from the Province of Oran, according to Doumergue. 



t Exceptionally 10 (2 specimens from Lambesa) according to Werner, I.e., 1892. 



X In which they appear to be constant. — As noticed above they are excep- 

 tionally present in L. viridis, var. major. We find them again in the Gallotia 

 Section. 



§ I cannot help regarding this anomaly as an atavistic feature due to the 

 derivation of this lizard from a striped form similar to L. viridis, var. major. 

 Lehrs mentions an advilt female from Bona, in the Berlin Museum, which has 

 a light stripe along each side instead of the lowermost series of ocelli. It is to 

 be expected that tri- or quinquestriated young of this variety will turn up 

 some day. 



