580 



MR. G. A. BOULENGEE OK THE VARIETIES OE 



The coloration is the same as in most examples of the typical form, with a dark 

 lateral band, light-edged above and beneath, and a dark vertebral streak or series of 

 spots ; these markings are strongly defined in the very young ; the belly of the males 

 is marked with thick black dots, and the throat and breast are spotted with black in 

 both sexes. This type of markings, which is frequent in the typical form of L. muralis, 

 is also that which most nearly approaches the pattern of L. vivipara. 



Particulars of adult specimens (as in the table, pp. 377-8) : — 



1. 



2. 



3. 



4. 



o. 



(3. 



i . 



... 51 



55 



25 



9 



21 



15-16 



1 



'. 1 



.... i'l 



48 



23 



9 



21 



16-15 



2 



. . . . 56 



46 



27 



8 



20 



14-16 



1 



. . . . 56 



48 



28 



8 



25 



16 



2 



55 



51 



27 



10 



20 



16 



2 



Measurements : — 



6. ?• 



From snout to vent 51 56 



fore limb. ... 22 20 



Length of head 13 12 



Width of head 9£ 9 



Depth of head 7 7 



Fore limb 18 18 



Hind limb 27 26 



Foot 15 14 



Tail 97 104 



Enlarged views of parts of a male specimen are given on PI. XXV. figs. 16-18. 



Prof. v. Mehely has recently (Ann. Mus. Hung. ii. 1904, p. 377) expressed the 

 opinion that the Caucasian form L. saxicola is to be regarded as representing the 

 ancestral stock out of which L. vivipara has been evolved. In my opinion, the variety 

 here described establishes an even closer connection between the typical L. muralis and 

 L. vivipara than is to be found in any of the Eastern forms yet described, including 

 Nikolsky's L. derjuginii, which is also intermediate between the two species. A much 

 closer knowledge of the variations of these lizards than we now possess is required 

 before we can profitably speculate on this question. 



Var. BEUEGGEMANNI. 



Bedriaga, Arch. f. Naturg. 1879, p. 304, pi. xvii. fig. 1. 



L. muralis, var. nigriventris Einier, Zool. Stud. Capri, ii. p. 30 (1874). 



? Podarcis muralis, var. roseiventris, part., Massalongo, Saggio Erp. Ven. p. 35 (1854). 



Dr. de Bedriaga tells us that there occur on the high walls of the arsenal of Spezia 

 and in the moat separating this from the road two forms of L. muralis, the neapolitana 

 (campestris) and another resembling the typical form in size and form, but remarkable 



