»(Qu 



wards, over a broad notch (sin its .-jijuoiwtt iciis) [69] through 

 which the muscles of mastication pass down and back to 

 the mandible. The prefrontal process [1] of the maxilla 

 serves to connect that bone with the prefrontal. The jngal 

 articulates above with Liu 1 postfrontal, and this by its 

 medial border with the frontal in front and parietal behind. 

 The squamosal (sq.) is fitted in between the quadrate 

 and quadrato-jugal below, the postfrontal anteriorly and 

 the parietal medially. 



Basal view. — The palatine processes [2] of t he premaxillae, 

 besides articulating laterally with those of the maxillae [3], 

 articulate with the palatine plate of the vomer [4] behind 

 them. Laterally this phite of the vomer articulates with 

 the palatine processes of the maxillae, but further back the 

 palatines intervene between these two structures. The 

 posterior border of the bony palate on either side is formed 

 by the pterygoid process of the jugal [5]. The pterygoid 

 process of the vomer [6] articulates with the pharyngeal 

 portion of the pterygoid bones [7] behind it, whilst laterally 

 it articulates with the orbital plates of the palatines [8], 

 these latter articulate with the same portions of the 

 pterygoid bones on either side of the vomerine process. 

 The basitympanic portions [9] of the pterygoid bones ex- 

 tending backwards and outwards, expose between their 

 diverging medial borders the inferior surface-, of the hasi- 

 pterygoid processes [10] of the basisphenojd: hit. rally these 

 portions of the pterygoids articulate with the suspensory 

 rami [11] of the quadrate bones (Qu.), whilst beyond the 

 basisphenoid each extends back to enter into the formation 

 «>f the pnroecipital pnioe-s \2 , iM-ariii-- [■.<.•■ p.i-t.'i'ior aper- 



