LACERTA MURALIS IN WESTERN EUROPE AND NORTH AFRICA. 



41; 



The secondary sexual differences of proportions are less marked x in this than in other 

 varieties of L. muralis. 



I have examined 21 specimens, four of which form part of the Lataste Collection 

 (collected by Dr. de Bedriaga), five are from Dr. de Bedriaga's Collection, and five 

 have been sent to me by Mr. L. Midler. 



Bastelica 



Tinozzo 

 Vizzavoua 



Corsica 





l. 



2. 



3. 



4. 



5. 



6. 



7. 



<J 



80 



78 



25 



11 



35 



22 



29 



1! 



75 



77 



28 



10 



35 



25 



? 



? 



75 



67 



27 



12 



30 



22-23 



27 



c? 



75 



66 



24 



9 



31 



25 



28 



s 



80 



69 



25 



11 



33 



26-25 



30 



>) 



80 



66 



25 



11 



33 



24-26 



31 



? 



82 



67 



26 



10 



32 



22 



28 



JJ 



80 



62 



26 



11 



26 



21-19 



27 



;j 



54 



75 



28 



10 



39 



24 



29 



cJ 



8.2 



76 



26 



12 



33 



25 



28 



}} 



78 



66 



25 



10 



32 



26-25 



30 



)} 



73 



72 



25 



13 



35 



23-21 



26 



)i 



65 



71 



28 



12 



33 



24-23 



29 



}) 



60 



70 



24 



7 



33 



22-24 



30 



i> 



58 



58 



24 



9 



32 



23 



27 



? 



70 



72 



25 



9 



35 



24-25 



29 



Ji 



55 



70 



26 



9 



32 



23 



27 







Var. saedoa. 











The lizard recently described by Peracca as Lacerta sardoa, Boll. Mus. Torin. xviii. 

 1903, no. 458, from the Genuargentu, Sardinia, although very nearly related to the 

 var. ledriagce, cannot at present be united with it 2 . About a year ago, Count Peracca 

 showed me the unique specimen he proposed to describe, and I fully agreed with him 

 that it could not be referred to any described form. Its most striking peculiarity 

 lies in the narrow head with the parietal shields nearly twice as long as broad ; 

 this, together with the coloration of the upper parts of the body — a black ground 

 crowded with small greenish spots, — gives it a physiognomy very unlike that of 

 the Corsican specimens. Since then, however, Count Peracca has succeeded in 



1 In a popular article on this variety (Blatter f. Aquarien- u. Terrar.-Kunde, xv. 1904, p. 35G) Lorenz Miillcr 

 adduces in favour of his view that it should he regarded as a valid species, the fact that, unlike L. muralis, 

 L. lulriagce shows no marked sexual differences of colour and that the young do not hear any traco of a light 

 lateral streak. But such is also the case in the var. nigriventris, which surely uo ono would regard as a species 

 distinct from the typical L. muralis. (Sec text-fig. 6 6, p. 390.) 



2 As has been suggested by L. v. Mc'hely (Allat. Kozlem. Budapest, iii. 1901, p. 19 t), aftor having previously 

 identified L. sardoa with L. genei. 



