154 MR. G. A. BOULENGER ON THE 
spots on the ventrals, and a few of the females have some scattered black dots on 
the same region. The series of granules between the supraoculars and the supra- 
ciliaries is complete in 18 specimens. 4 specimens have five anterior labials on each 
side, 6 have five on one side and four on the other, and one has three on each side. 
In two specimens the rostral forms a suture with the frontonasal. In all but two 
the masseteric disk is large, and in one only is the parietal excluded from contact 
with the upper postocular. Femoral pores 20 to 29. 
Out of four specimens from Cagliari, received from Count Peracca, one has five 
anterior upper labials. Femoral pores 21 to 25. 
In nearly all these specimens the rostral shield touches or enters the nostril. In this 
respect the var. guadrilineata tends towards the var. pityusensis, in which the rostral 
constantly enters the nostril. There are many points of agreement between these two 
varieties, and it now appears to me not improbable that the Iviza lizard, which differs 
considerably from the Wall-Lizards of the Spanish Peninsula, may be directly derived 
from those inhabiting Corsica and Sardinia. This would be in accordance with what 
we know of the herpetological fauna of the Balearic Islands, which lacks any truly 
Spanish elements, and shows decided Eastern affinities in the presence of Testudo 
greca and Bufo viridis, to say nothing of the reported occurrence on Minorca of 
Lacerta muralis, var. tiliqguerta, which, in view of the present knowledge of its 
distribution, may, after all, not be due to human agency, as I was first inclined to 
believe. 
Var. SARDOA. 
Since the appearance of my first contribution, Count Peracca has published * 
supplementary notes on his L. sardoa, based on the examination of 26 further 
specimens. The lizard was then believed to be confined to a single valley on the 
Gennargentu, but on a recent rapid inspection of the collection in the Florence 
Museum, Count Peracca and I found three large specimens, labelled as from Monte 
Limbara. In these specimens, the nasals are narrowly in contact with each other 
behind the rostral, whilst in the 26 specimens described by Peracca the frontonasal is 
in contact with the rostral, usually forming an extensive suture. The postnasal 
is constantly single, and, with three exceptions, the parietal is in contact with the 
upper postocular. There are more frequently 4 than 5 upper labials in front of 
the subocular. 
According to the author’s tabulation, the number of scales across the body varies 
from 62 to 76, the transverse series of ventrals from 23 to 26, the collar-shields from 
11 to 15, the gular scales, in a longitudinal series, from 29 to 38, the femoral pores 
from 21 to 30, frequently with a second series of rudimentary pores, as noticed in the 
* Boll. Mus. Zool. Torin. xx. no. 519, 1905, with a plate. 
