254 Mr. G. A. Boulenger on the 



2. Usually a distinct masseteric shield ; outer border of parietal 

 shield usually strongly notched by the first supratemporal ; 

 upper caudal scales distinctly keeled longitudinally. 



a. Collar distinctly dentate ; upper caudal scales pointed behind. 



Dorsal scales smooth L. caucasica, Merely. 



Dorsal scales distinctly keeled L. boettyeri, M6hely. 



b. Collar with straight edge ; upper caudal scales truncate 



behind L. saxicula, Eversm. 



In division I (two superposed postnasals) we find L. mosnr- 

 ensis, in which there is frequently a single postnasal. Oat of 

 12 specimens in the British Museum, received from Prof. 

 Kolombatovic, the describer of the species, 5 have a single 

 postnasal. 



In division TI (a single postnasal) I find, as I have already- 

 mentioned, and as Prof. v. Mehely knows, two postnasals in 

 about 20 per cent, of the L. reticulata (bedriagct) examined. 



I A is opposed to I B on a character of small importance 

 which I find as well developed in most specimens of L. grccca 

 as in L. danfordi, whilst indications of it are to be seen 

 occasionally in other lizards of the L. muralis group. I here 

 figure (traced from photographs) the anal region in one of 

 the types of L. danfordi, in a L. grccca from Taygetos 

 (received from Mr. Lorenz Midler), and in a L. muralis, var. 

 serpa, from the Faraglioni. 



Fig. S. 



B C 



Pracanal region of Lacerta danfordi, type 'A), L. danfordi, var. graca 

 (li), from Kambos, and L. muralis, \&r.serpa (C), from tkeFara'oliom 

 near Capri. 



L. anatolica is separated from L. danfordi as havino- the 

 rostral separated from the nostril by a small shield and 8 

 rows of ventials. The first character has no importance 

 whatever, as shown by Latastia coppadocica (although 

 formerly appealed to by v. j\ e*hely as one of the generic 

 characters of Aputhya) and other species, in which it is ad- 

 mitted by the author himself to be inconstant, whilst the 

 second is disposed of by the fact that two of the types of 

 L. danfordi in the British Museum have 8 rows of ventials 

 not 0. 



