LACERTA MURALIS IX WESTERN EUROPE AND NORTH AERICA. 



563 



Measurements of specimens from N.W. Spain and Portugal : — 



1. 2. 3. 4. 5. 6. 



From snout to vent 57 55 55 55 48 46 



„ fore limb 22 19 21 21 18 17 



Length of head 14 12 14 13 11 10 



Width of head 10 8 9 9 8 7 



Depth of head 8 7 7 6 6^5^ 



Fore limb 20 17 20 18 16 14 



Hind limb 30 24 30 27 26 21 



Tail 85 92 103 93 102 60 



1. <J. Galicia {Seoane. — Lataste Coll.). 



2. ? . >> 11 



3. J" . Serra de Gerez (Gadow). 



5. <?. Lisbon (H. O. Forbes). 



6. $ . „ „ Tail reproduced. 



Var. liolepis. 



Bedriaga (Arch. f. Naturg. 1879, p. 292) has briefly alluded to a small form which 

 he observed alive at Valencia, on the road to the Dehesa de la Albufera, and which 

 struck him as remarkable for the extremely small dorsal scales and smooth caudal 

 scales, the middle dorsals of which are more or less enlarged. The colour is described 

 as a pale yellowish brown above, with a brown, white-edged lateral band, greyish or 

 yellowish beneath. Length from snout to vent 49 millimetres. 



Among numerous specimens from Valencia in the British Museum (Lilford, Bosca, 

 Bolivar) some agree with Bedriaga's description in having the upper caudal scales very 

 faintly keeled, almost smooth, and the granular dorsal scales are very minute, scarcely 

 larger than those on the upper surface of the tibia. Some specimens, however, have the 

 dorsal scales larger, and the caudal scales distinctly, though rather feebly, keeled ; I 

 do not think it possible to sharply define this form, which may be said to connect the 

 typical form with the var. Mspanica, and also with the var. pityusenis. I have received 

 specimens of the same form from Seville (Prof. Calderon). 



The scales across the body vary from 52 to 65 ; 3 or 4 correspond to one ventral 

 plate, and 42 to 56 to the length of the head ; they are smooth or faintly keeled on 

 the back ; ventral plates in 6 longitudinal rows, except in one $ , which has 8 ; collar- 

 plates usually smaller than in the typical form, 9 to 14 in number; 25 to 35 gular 

 scales and granules on the median line. Upper caudal scales feebly or faintly keeled, 

 sometimes nearly smooth ; 28 to 34 scales in the 4th or 5th whorl behind the postanal 

 granules. Femoral pores 15 to 22 on each side. 23 to 27 scales under the fourth toe. 

 Nearly constantly four anterior upper labials 1 . Masseteric disk more or less 



1 One specimen has five on one side. 



