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 l)ones dorsally, chiefly owing to the size of 



Fig. 142. — Skull and lower jaw of Lacrrta 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. JiJ.P, Ectopterygoid ; F, Fr, frontal ; ji«j, jugal ; Lac, 

 lacrynial ; Max, maxillary ; N, Na, nasal ; N-^, in B, inner narial opening ; Pal, 

 palatine ; Par, parietal ; Pmx, premaxillary ; Pr.f, prefrontal ; Pt.f, ]iostorbital ; 

 Pt.f^, postfrontal ; Ptg, pterygoid ; (J, quadrate ; S.a.ng, supra-angular ; Sq, squa- 

 mosal ; Vo, vomer. 



the postfrontal (Fig. 14:2, 2)i ■/<!), 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- 



