VARIETIES OF THE WALL-LIZARD. 153 
and smooth dorsal scales and nearly smooth caudals are found in so many typical 
L. muralis and closely related varieties, that very little importance attaches to such a 
character. Specimens with smooth and keeled dorsal scales are placed in the same 
species by Méhely when dealing with L. saxicola (1909, p. 491). 
9. The high number of gular scales.—26 to 39 in L. bedriage, 24 to 32 in L. insu- 
lanica, 22 to 30 in L. brueggemanni. 
10. The more feeble gular fold—Better marked in a large male L. bedriage from 
Tinozzo, and in another from Bastelica than in some of the lizards from Pianosa. 
ll. The same number of transverse series of ventral plates in the two sexes.—See 
what I have to say of the Maltese lizards, p. 160. 
12. The greater number of rows of scales on the lower surface of the thigh.—I count 
5 to 8 rows between the large shields and the femoral pores in Z. bedriage, 5 or 6 in 
LL. insulanica. 
13. Lhe greater number of femoral pores—19 to 31 in L, bedriage, 19 to 26 in 
L. insulanica, 
As regards the scaling, a greater difference exists between a typical L. muralis from 
Lower Austria (A) and ZL. insulanica than between L. insulanica (B) and L, bedriage 
(C), as shown by the numbers of scales across the body (a), of femoral pores (4), and 
of subdigital lamella under the fourth toe (c) :—— 
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14. The reticulated livery of the young and the absence of secondary sexual characters 
in the markings.—These are features which are likewise characteristic of L. insulanica. 
As the latter point is one on which Méhely lays great stress in his classification of the 
Wall-Lizards, 1 think no better example could be adduced to show the fallacy of his 
conclusions than that offered by this Pianosa lizard, which, in its habitat between Elba 
and Corsica, appears to constitute a geographical link between the Elba lizards of the 
var. brueggemanni and the var. bedriage, isolated on the mountains of Corsica. I do 
not suppose any one who has devoted some study to these lizards could think of 
regarding the Filfola Rock lizard as more than a variety derived from the smaller form 
living on Malta; and yet the latter shows as strong a sexual coloration-dimorphism 
as the typical L. muralis, whilst the former is, in this respect, in the same condition as 
L. bedriage. 
IV.—_SARDINIA (Supplement). 
Var. QUADRILINEATA. 
‘Signor Meloni has sent me 34 specimens from Latzobé, Urzulei-Ogliastra Mountains, 
altitude 1080 m., which vary much in markings. Many of the males have large black 
wa 
