38 



Lacertidse. 



Synopsis of the Species, 



A. Nostril between 3 or 4 (rarely 2) shields, the rostral not entering its border ; 



subdigital lamellae 16 to 23 ; dorsal scales elliptic, rhombic or hexagonal, 

 strongly keeled ; 32 to 52 scales across the middle of the body ; ventral 

 plates in 6 or 8 longitudinal series ; tail never twice the length of head 

 and body. 



Granules between the supraoculars and the supereiliaries 

 usually absent ; usually two large upper temporals ; fronto- 

 nasal rarely broader than internarial space, usually between 

 6 shields ; foot not longer than head . . . 1. L. agilis, L., p. 39. 



A series of granules between the supraoculars and the super- 

 eiliaries (rarely reduced to 2 or 3) ; a single large upper 

 temporal ; frontonasal broader than the internarial space, 

 between 8 shields ; foot longer than head 2. L. po.rva, Blgr., p. 60. 



B. Nostril between 5 or 6 (rarely 4) shields, the rostral nearly always entering 



its border; subdigital lamellse 21 to 31; xiSually two large upper tem- 

 porals, the first in contact with the fourth supraocular ; tail IJ to 2-| 

 times the length of head and body. 



Dorsal scales hexagonal or rhombic, rarely oval or rovTudish, 

 strongly keeled ; 38 to 58 scales across middle of body ; 

 ventral plates in 6 or 8 longitudinal series . 3. L. viridis, Laur., p. 64. 



Dorsal scales rhombic and subimbricate, strongly keeled, much 

 larger than the laterals ; 34 to 37 scales across middle of 

 body ; ventral plates in 10 longitudinal series. 



4. i. princeps, Blanf., p. 95.^ 



Dorsal scales granular, smooth or feebly keeled ; 63 to 100 scales 

 across middle of body ; ventral plates in 6 to 10 longitudinal 

 series . 5. L. ocellata, Daud., p. 97. 



L. ocellata. 



I 



L. ocellata, 



V . pater. 



L. 



L. viridis, 

 V. major. 



I, 



L. viridis.- 



V. strigata. 



L. viridis, — 

 r. sehreiberi. 



— L. agilis, 

 V. spinalis. 



L. agilis,- 



-L. agilis,- 



L. princeps. 



-L. viridis. 



T. vcoosnami. 

 -L. viridis. 



-L. parva. 



V. chersonensis. i v. exigua. 

 Ancestral type. 



The above diagram expresses my conception of the relationship 

 bet-ween the species and varieties constituting this section. 



