LACERTA MURALIS IN WESTERN EUROPE AND NORTH AFRICA. 569 
Text-fig. 4. 
Young specimens of :—a, f. typica, Arnao, Asturias ; 6, var. bocage’, Madrid ; ¢, var. liolepis, Valencia ; 
d, var. monticola, Spain ; e, var. hispanica, Almeria. 
IlI.—BALEARIC ISLANDS. 
(Plates XXIII. & XXVI.) 
A good example of the neglect of the lepidosis in defining races of the Wall-Lizard, 
of which I have complained above, is offered by the lizards inhabiting the Balearic 
Islands. Although the form and coloration have been described by Bedriaga and by 
Bosca, the difference in scaling by which the Iviza lizard can be sharply separated 
from the so-called varieties inhabiting the two more eastward islands has hitherto 
entirely escaped attention. Yet, with the help of these characters, the Balearic lizards 
stand out as the best-definable of all the subspecies or varieties which have been 
included under Lacerta muralis, and certainly have stronger claims to specific separation 
than have LZ. bedriage and L. depressa. 
But, then, it is necessary to entirely put aside the colour—whether brown, yellow, 
green, or black—and to place together, as var. pityusensis Bosca, the Iviza specimens 
referred by Bosca to vars. balearica and pityusensis, and to group under the older name 
of var. li/fordi Gthr. all the lizards from Majorca, Minorca, and neighbouring islands, 
which have been described by Bedriaga as vars. balearica, gigliolii, and lilfordi, the 
nunibers of the scales counted across the middle of the body (55 to 68 in the former, 
70 to 90 in the latter) being sufficient for their discrimination. ‘The important fact 
that in the Iviza lizards the rostral shield constantly enters the nostril, as only 
exceptionally happens in other forms of LZ. mwralis, affords a diagnostic character by 
which to separate them from those of Spain, which agree in the number of scales 
across the body. 
