IX.] 



OF THE DOG. 



139 



near the middle line, formed mainly in the premaxillae, 

 though their boundary is completed posteriorly by the 



FIG. 49. Under surface of the cranium of a Dog. J. SO siipraoccipital : ExO 

 exoccipital ; BO basioccipital ; Per mastoid portion of periotic ; Ty tympanic 

 bulla : BS basisphenoid : Sq zygom.it ic process of squamosal ; Ma malar ; - 1-V 

 alisphenoid: ft pterygoid : PS presphenoid ; Ar frontal; Vo vomer \Pl palatine 

 MX maxilla ; PMx premaxilla ; fin foramen magnum ; oc occipital condyle 

 // paroccipital process ; cf condylar foramen ; flp foramen lacerum posterius ; nn 

 stylo-mastoid foramen ; earn external auditory meat us ; pgf postglenoid foramen 

 gp postglenoid process ; gf glenpid fossa;///* foramen lacerum medium \ fo 

 foramen ovale ; its posterior opening of alisphenoid canal ; fr foramen rotundum 

 and anterior opening of alisphenoid canal ; sf sphenoidal fissure or foramen 

 lacerum an terms ; op optic foramen ; ///" posterior palatine foramen ; apf anterior 

 palatine foramen. 



maxillae ; these are the anterior palatine or incisive foramina. 



