LACERTA MURALIS [N WESTERN EUROPE AND NORTH AFRICA. 419 



Measurements : — 



d. $. 



From end of snout to vent 52 50 



„ „ „ fore limb 21 19 



Length of head 13 10 



Width of head 9 7 



Depth of head 6 5 



Fore limb 19 15 



Hind limb 30 2i 



Foot 16 13 



Tail 98 83 



A female specimen is figured on PI. XXIX. fig. 9. 



Var. QUADRILINEATA. 



Camerano long ago (Atti Ace. Torin. xiii. 1877, p. 87) recorded the occurrence 

 of this form, described by him under the name of L. tiliguerta, in the vicinity of 

 Tunis, where two specimens are reported to have been collected by the late Marquis 

 O. Antinori in 1865. These specimens, preserved in the Turin Museum, have been 

 kindly entrusted to me for study by Prof. Camerano, and I find one of them to agree 

 in every respect with specimens of the var. quadrilineata from Sardinia and Corsica, 

 while the other is referable to the Sardinian var. tiliguerta, as pointed out to me by 

 Count Peracca. The association of these two specimens points to Sardinia as their 

 country of origin, and as, since 1865, no one has ever found either of the Sardinian 

 varieties in any part of Tunisia, I cannot help regarding it as highly probable that 

 some mistake has taken place in the labelling of the specimens in the Antinori 

 Collection. 



It may perhaps be useful to give particulars of the two specimens preserved in the 



Turin Museum : — 



1. 2. 3. 4. 5. 6. 7. 



<J , var. quadrilineata . . 60 63 27 11 31 22-23 31 

 S , var. tiliguerta ... 63 72 27 10 28 23 30 



The Lataste Collection contains three specimens, belonging to the var. quadrilineata, 

 received from M. Ed. Taton as from Cyrenaica. These lizards agree entirely with 

 Corsican specimens, and the fact that a Lacerta vivipara bearing the same indication 

 of locality was received along with them makes me regard the information as doubtful, 

 to say the least. 



I have thus been unable to convince myself of the occurrence of cither the var. 

 quadrilineata or the var. tiliguerta in North Africa, and I consider the report of their 

 presence there as based on erroneous indications of localities. 



