4 
VARIETIES OF THE WALL-LIZARD. 176 
My reasons for dissenting from both these views are derived from the study of the 
scaling, to which previous authors had not paid sufficient attention when making their 
comparisons. 
In describing this lizard, Braun had correctly mentioned and figured the larger scales, 
as compared with the var. serpa, and it will be seen by a glance at the tabulation that 
follows, to what extent it is so, the number of scales across the body being 50 to 64 
(usually less than 60) in the Melisello lizard, and 62 to 75 in the var. serpa from 
the East Coast and islands of the Adriatic. The number of dorsal scales would be in 
favour of a derivation from the typical Z. murals, but against this we have the greater 
number of subdigital lamelle under the fourth toe (25 to 30, usually 28). In these 
numbers, however, we have so complete an agreement with the form described as 
var. lissana (Se. 51-54, lam, 27-31, usually 28), that, when I became acquainted with 
it, I at once felt convinced as to the identity of the two forms, which had already been 
pointed out by Scherer in 1904. All doubts as to the derivation of the var. meli- 
sellensis from the var. fiumana are removed by an examination of the lizards named 
var. lissana, which furnish the missing link. 
In the following table particulars are given of the 19 specimens from Melisello 
examined by me. The first two specimens, for which I am indebted to the kindness 
of Dr. Steindachner, form part of the series out of which Prof. Braun’s original types 
were obtained. The last eight belong to Dr. Werner's Collection. 
These first two specimens appear also in the first two columns of the table of 
measurements. 
ile 2. 3} 4, iy 6. 7 
3 50 52 25 10 27 23-22 29 
9 58 5A 29 8 27 25-23 25 
3 73 62 28 10 27 22-24, 28 
a 68 59 25 9 29 23 28 
* 65 64 24 11 29 22-23 30 
= 65 63 26 Wa 32 23 28 
65 60 25 10 31 27 28 
63 60 25 10 29 22-23 30 
: 63 57 26 8 25 23-24 28 
. 61 58 26 9 28 23 28 
9 56 56 27 8 26 21-22 2 
3 74 58 24 10 29 22 Pal 
x 70 55 25 9 30 23-24 30 
x 65 52 25 8 28 24-23 ? 
. 60 56 26 9 30 24 28 
a 58 52 25 10 26 23-24 29 
f 60 5 28 8 30 24-23 28 
. 59 53 29 8 27 24-23 27 
3 55 50 30 9 29 22-21 ? 
VoL. XX.—PARYT 11. No. 6.—February, 1918. 2 8B 
