318 



ZOOLOGY 



SECT. 



lies in front of the frontal, and helps to bound the orbit anteriorly, 

 and another small bone the lacrymal (Icr) perforated by an aper- 

 ture for the lacrymal duct, lies at the anterior extremity of the orbit, 



trans 



para 



sttpra.1. 



supr s 4 -"><* 



rt.orb 



s.orb 



FIG. 962. Skull of Lacerta agilis. A, from above.; 15, from below ; C, from the side. 

 any. angular ;. art. articular; ban. cc. basioccipital ; las. ptg. basipteiygoid processes ; /;./>. 

 s'ph. basisphenoid ; col. epipterygoid ; cor. coronary ; <l(t. dentary; itli. ethmoid ; ex. or. ex- 

 occipital ; cxt. nar. external nares ; for. may. foramen magnum ; //. frontal ; i/it. iu:i r. internal 

 nares ; ju. jugal ; jry^lacrymal ; max. maxilla ; nas. nasal ; or. con<i. occipital condyle ; olf. 

 olfactory capsule ; op. ot. op sthotic ; opt. n. optic nerve ; pal. palatine ; par. parietal ; /mra. 

 parasphenoid ; par. f. parietal foramen ; p. mx. premaxillse ; pr. fr. pre-frontal ; ptg. 

 pterygoid ; pt. orb. postorbital or lateral postfrontal ; qu. quadrate; s. ftiiti. supra-angular; 

 ,<t. orb. supraoi bitals ; sq. paraquadrate ; mprafl. supratemporal 1 ; nupm ft. squamosal ; trait*. 

 transverse ; supr. or. supraoccipital ; vom. voroer. The unlettered bone internal to pt. orb. 

 in A is the postfrontal. The transverse line behind /). is a superficial mark, not a suture. 

 (After W. K. Parker.) 



just within its border. A row of small bones the supra-orbitals 

 (s. LrH) bounds the orbit above, and behind is a post-orbital 



