Habitat - Mountains of Corsica, between 700 and 2700 metres 

 altitude. 



This form is so striking for the great depression of the head and 

 liody that it has been regarded by most authors as entitled to specific 

 rank, or has even been united with L. oxycephala. It is however 

 connected with L. muralis by intermediate forms, such as the vars. 

 tilignerta and insulanica, and when the characters of these are taken 

 into consideration it will be found that the var. hedriagx is difficult 

 of definition ; the difficulty is further increased if we also compare 

 L. hedriagm with the Asiatic forms formerly held as specifically distinct 

 under the name of L. dejjressa. In my opinion, the difference l^etween 

 the var. hedriaga? and the var. tiliguerta is not greater than that between 

 the latter and the var. campestris, perhaps even less. 



Var. SARDOA. 



Lacerta sardoa, Peracca, Boll. Mus. Tor. xviii, 1903, no. 458, fig., 

 and XX, 1905, no. 619, pi. — ; Schreib. Herp. Eur., ed. 2, p. 391 (1912). 



Lacerta hedriagie, part., Mehely, Allat. Kozlem. Budapest, iii, 1904, 

 p. 194. 



Lacerta muralis, var. sardoa, Bouleng. Tr. Zool. Soc. xvii, 1905, 

 p. 413, pi. xxviii, fig. 9, and pi. xxix, fig. 8, and xx, 1913, p. 154. 



Lacerta reticulata, var. sardoa, Mehely, Ann. Mus. Hung, vii, 1909, 

 p. 487, pi. xvi, figs. 1-6. 



Head 1^ to If times as long as broad, much depressed, the occipital 

 region flat or slightly concave, its depth not greater than the distance 

 between the posterior border of the eye and the tympanum, its length 

 3t to 4 times in length to vent in males, 3f to 4^ times in females ; 

 snout more or less pointed, not longer than the postorbital part of the 

 head. Pileus 2 to 2| times as long as broad. Neck as broad as or a 

 little broader than the head. Body much depressed. Hind liml) 

 reaching the shoulder, the collar, or a little beyond the collar in males, 

 the axil or not quite so far in females ; foot as long as or a little 

 longer than the head.=' Tail 1| to 2 times as long as head and body. 

 * A little shorter in a male measured by Mehely. 



