550 



LACERTAE 



the skull. The latter is always well marked off from the neck. 

 The postorbital arch is complete. The temporal region is com- 

 pletely roofed over by bones dorsally, chiefly owing to the size of 



Fig. 142. — Skull and lower jaw of Lacerta viridis. A, Dorsal view ; B, ventral view ; 

 C, from the left side ; D, right half of the lower Jaw, from the inner side, with some 

 of the pleurodont teeth. J£. P, Ectopterygoid ; F, Fr, frontal ; jug, jugal ; Lac, 

 lacrymal ; Max, maxillary ; iV, Ifa, nasal ; iVj, in E, inner narial opening ; Pal, 

 palatine ; Par, parietal ; Pmx, preniaxillary ; Pr.f, prefrontal ; Pt.f, postorhital ; 

 Pt./^, postfrontal ; Ptg, pterygoid ; Q, quadrate ; S.ang, supra-angular ; Si], squa- 

 mosal ; Vo, vomer. 



the postfrontal (Fig. 142, 2^^-f2)> which fills the space between the 

 parietal and the squamoso-postorbital bridge, thus abolishing the 

 supra-temporal fossa. The squamosal is very small, placed be- 



