IX.] 



OF THE DOG. 



139 



near the middle line, formed mainly in the premaxillae, 

 though their boundary is completed posteriorly by the 



/il/r- 



FIG. 49. Under surface of the cranium of a Dog, \. SO supraoccipital ; ExO 

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

 bulla; BS basisphenoid : Sq zygomatic process of squamosal ; Ma. malar; AS 

 alisphenoid ; Pt pterygoid ; PS presphenoid ; Fr frontal ; Vo vomer ; PI palatine ', 

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

 pp paroccipital process ; cf condylar foramen ; flp foramen lacerum posterius ; st 

 stylo-mastoid foramen ; earn external auditory meatus ; /^/"postglenoid foramen ; 

 gp postglenoid process ; gf glenpid fossa \flrn foramen lacerum medium ; ./6> 

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

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

 lacerum anterius ; op optic foramen ; ppf posterior palatine foramen; apf anterior 

 palatine foramen. 



maxillae ; these are the anterior palatine or incisive foramina. 



