the Local Races of some Canarian Lizards. G9 



oblonpj ones ; all not keeled. Masseteric nsually broad, now 

 and then replaced by two or three smaller shields, rarely 

 entirely absent. A large, oblong, tympanic, upper margin of 

 ear-opening always present. 7 sublabiidss. Behind the 

 symphysial 5 pairs ot" large chin-shields, followed by another 

 ])air, which is usually small, but now and then quite well 

 developed. As a rule, only the shields fif the two anterior 

 pairs in contact with one another. Oollar with very slightly 

 or slightly serrated edge, comj)osed of 9 to 15 shields. 

 Gular fold always visible, generally very distinct. 38 to 45 

 scales in one line between collar and third pair of ciiin- 

 sliields. Dorsal scales small, roundish-rhomboidal, flat on 

 sides of body, keeled in the middle of back. Between the 

 individual scales there are minute granules, which never form 

 complete rings round the dorsal scales as in Lucerta sirnonyi, 

 Steind., but are limited to their anterior and posterior 

 margins. 87-106 scales across the middle of the body, but 

 usually less than 100. 3 to 4 lateral scales C3rres))ond to 

 to the length o£ one ventral shield. Ventrals in 12 to 14 

 longitudinal and 20-31 transverse series. Laterally of tiie 

 ventrals there are always large lateral scales ; now and then 

 the lateral scales gradually pass into the ventrals. There- 

 fore, all the shields which are less than | of a normal ventral 

 are not counted as such. 



Differentiation oi ventrals variable. Shields of the first 

 transverseseriesdecidedly longerthan broad. Pectoral triangle 

 always well developed ; shape of ventrals of the different 

 series different. Shields of the two median series as long as 

 broad, the two following on the right and left distinctly 

 broader than long, the extreme lateral ones longer than 

 broad. 



Except the number of the longitudinal series, the differen- 

 tiation of the ventrals jippears to be an important charactei-, 

 which separates the races of Lacerta galloti, Dum. et Bibr., 

 from those of Lacerta sbnoniji, Steind. It would also seem 

 that this character is of special importance with regard to 

 the question which of the two large species of Tjucerta in the 

 western group is more primitive. 



Proeanal hexagonal, usually broader than long, about ^ of 

 the breadth of anal opening, surrounded by 2 (rarely 3) 

 semicircles of small plates. 



Forearm with two, upper arm with one series of broad 

 shields; anterior surface of thighs and lower legs also with 

 a series of transverse plates. The differentiation of the 

 scales has gone further here than in Lacerta simonyi, Steind., 

 in which there are no broad shields at all on the upper arm, 



