42 Lacertidse. 



granules being absent or reduced to a few* ; suture between the first 

 and second superciliaries as often vertical as oblique. One or two 

 postnasals, followed usually by two superposed anterior loreals ; 

 the anterior loreal exceptionally single, smaller than the second, 

 or even entirely absent,t the second usually in contact with the 

 second upper labial ; 4 upper labials, rarely 5 J or 3, § anterior to 

 the subocular, which is Tery variable in shape, sometimes nearly as 

 long beneath as above, sometimes much shorter. 



Two large and deep upper temporals, usually equal in length, 

 sometimes first or second the longer, each very rarely divided into 

 two ; these two shields partly on the upper surface of the head, the 

 first rarely forming a slightly convex suture with the parietal || ; 

 the temple below them covered with smaller shields very variable 

 in size and shape (9 to 28 in number), but generally large, among 

 which a central masseteric and a tympanic are often distinguishable, 

 the tympanic usually in contact with the second upper temporal. 



Lower eyelid opaque, with 6 to 10 enlarged, vertically elongate 

 hexagonal scales in the middle, or with two superposed series of 

 such scales. 



Pterygoid teeth constantly present, in a small cluster. 



14 to 21 (usually 16 to 19) scales and granules in a straight line 

 between the symphysis of the chin-shields and the median collar-plate ; 

 gular fold feebly marked or absent, rarely very distinct. Collar with 

 strongly serrated edge, composed of 7 to 12 plates, usually 8 to 10. 



Scales on vertebral area (8 to 12 rows) very narrow, elliptic or 

 hexagonal, strongly keeled, juxtaposed, more or less sharply differen- 

 tiated from the larger dorsolaterals.ir which are much broader, rhombic 

 or hexagonal, subimbricate, and also strongly keeled; lower down 



* 1-2 in a female from Bazias ; 2-3 in a male from Fensham Common and 

 in a female from Arlon ; 3-4 in a female from Farnham ; 3-5 in a young from 

 Mondorf ; 4-5 in a female from La Eoche-en-Breil. 



t Out of 260 cases, I note for the postnasal and anterior loreal : 1, 1 10 times, 

 X, 2 155 times, 2, 2 58 times, 2, \ 9 times, 1, \ 7 times, 2, 3 2 times, 2, 19 times. 

 — " J " means that the anterior loreal is partly fused with the postnasal. — 

 2, 1, occasional in the vars. chersonensis and exi(iua, does not occur at all. 



J Male and female from Soiithport and from Nagyszeben, male from 

 Famham, male from Isohl, female from Churt ; 5 specimens from Berlin and 

 Vienna. 



§ Male from Freiburg, male from Hermannstadt, young from Lausanne. 



II Male from Lausanne, male from Vienna, male from Nagyszeben, female 

 from Bazias. 



IT There are, however, rare exceptions, as in a male from Lausanne and in 

 a female from Vienna in which the difference is very feebly marked. 



