LACERTA MURALIS IN WESTERN EUROPE AND NORTH AFRICA. 413 
The secondary sexual differences of proportions are less marked ' 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. Miller. 
is 2. 3 4. 5. 6 7 
Bastelica faa a9.) 6 80 78 25 il 35 22 29 
‘ ee Tivo 7) me oat 10. 985 25 ? 
3 Re co a D: 75 67 27 12 30 22-23 27 
ihmozzOmiee se a C) fs) 66 24: 9 31 23 28 
Vizzavona. aa Bi etoy 80 69 20 11 33 26-25 30 
one eh Se Coe 2pm Tl =. 88 2a eye al 
5 gr sy tan” 2. 82 67 26 10 3o2 22 28 
Pee ee ee 60) 62,, 26)/ Sie 626 = N2TaIe Ss 58m 
FS en a tame 350 On 3 24 29 
Gorsicaa eae ss ES 82 76 26 12 33 25 28 
3 3 78 66 25 10 32 26-25 30 
ie Se ee 1 ee meen 26 
$5 : - 65 71 28 12 33 24-23 29 
B i 60 yO. 24 7 33 ‘99-94 180 
5 é ‘5 58 58 24 9 32 23 PY 
Pe g 70 72 25 9 35 24-25 29 
55 70 26 9 32 2 27 
Var. SARDOA. 
‘The lizard recently described by Peracca as Lacerta sardoa, Boll. Mus. Torm. xviii. 
1903, no. 458, from the Gennargentu, Sardinia, although very nearly related to the 
var. Ledriage, cannot at present be united with it?. 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 (Blitter f, Aquarien- u. Terrar.-Kunde, xy. 1904, p. 356) Lorenz Muller 
adduces in favour of his view that it should be regarded as a valid species, the fact that, unlike Z. muralis, 
L. bedriage shows no marked sexual differences of colour and that the young do not bear any trace of a light 
lateral streak. But such is also the case in the var. nigriventris, which surely no one would regard as a species 
distinct from the typical Z. muralis. (See text-fig. 6b, p. 399.) 
2 As has been suggested by L. v. Méhely (Allat. Kézlem. Budapest, iii, 1904, p. 194), after haying preyiousl y 
identified Z. sardoa with ZL, genet. 
