12 DR. J. ANDERSON ON MAMMALS, REPTILES, [Jail. 5, 



The largest female measures from ihe snout to tlie veut 94 millim., 

 and the tail 125 millim. 



These specimens illustrate the unequal lepidosis of the hack men- 

 tioned by Mr. Boulenger, as no two are alike in the distribution of 

 the enlarged scales. 



The Duirat specimens collected in the months of May and June 

 are gravid. 



Genus Uromastix, Merrem. 



4. Uromastix acanthinurus, Bell; Boulenger, /oc. ciY. p. 119. 

 2, Biskra ; 2, Duirat. 



Family III. Varanid^. 

 Genus Varan us, Merrem. 



5. Varanus griseus, Daudin ; Boulenger, loc. cit. p. 121. 



1 9 , Duirat, Tunisia. 



Mr. Boulenger gives the dimensions of this species as follows : — 

 snout to vent .56 centini., tail 71 ; but this female, although it is 

 22 centimetres shorter in its body, is gravid, having 7 ova in the 

 rii'ht, and 8 in the left ovary, the ova on the right side being 

 pressed forwards almost as far as the axilla. 



Family IV. Amphisb^nid^. 

 Genus Trogonophis, Kaup. 



6. Trogonophis wiegmanni, Kaup ; Boulenger, loc. cit. p. 122. 

 2, Hammam Meskoutine, Province of Constantine, under large 



stones on hill-sides. 



Family V. Lacertid^. 

 Genus Lacerta, Linnaeus. 



7. Lacerta ocellata, Daudin ; Boulenger, loc. cit. p. 123. 

 Var. pater, Lataste, 1880 ; Boulenger, loc. cit. p. 123. 



2 6 , under hedges by the road-side, Tlemsen, Province of Oran ; 

 I $ , under a large stone, Hammam Meskoutine, Province of Con- 

 stantine ; 2 c? & 2 ? , Duirat, Tunisia. 



M. Lataste was the first to point out that the large lizard of 

 Algeria and Tunisia was a race or subspecies of L. ocellata, closely 

 related to it, but having also some points of affinity with L. viridis. 

 Mr. Boulenger adopts this view, with which I fully agree, and in 

 his catalogue he clearly indicates wherein it differs from the European 

 form. 



In none of these specimens does the number of scales across the 

 back exceed 80, nor are the femoral pores more than IC. 



7a. var. tangitana, Boulenger, Catalogue of Lizards in the 



