4v)0 



/OOLOGY 



SECT. 



root of the zygoma to form part of the outer wall of the glenoid 

 fossa. The lacrymal foramen is usually on the anterior margin 

 of the orbit, sometimes on the face. The palate usually presents 

 vacuities in its posterior portion. The pterygoid is always 



cbd 



FIG. 1062. Skeleton of Wallaby (Halmaturus ualabatus). The scapula is represented as 

 raised somewhat higher than it would be in the natural relations of the parts. The head of the 

 femur has been separated from the acetabulum. acet. acetabulum ; acr. acromion process ; 

 nst. astragalus; cole, calcaneum ; cbd. cuboid ; chev. chevron bones ; cl. clavicle ; cun. cuniform 

 of carpus ; epi. epipubis ; fb. fibula ; fern, femur ; hd. head of femur ; hu. humerus ; il. ilium ; 

 isch. ischium ; obt. obturator foramen ; orb. orbit ; pig. pisiform ; <pub. pubis ; rad. radius ; 

 /6 1 . first rib ; rbW. last rib ; sc. scapula ; st. sternum ; tb. tibia ; troch. great trochanter of 

 femur; ^dil. ulna; unc. unciform. 



small. The alisphenoid is large, and forms the anterior boundary 

 of the tympanic cavity ; in the Kangaroos (Fig. 1064, ali.) it extends 

 backwards so as to join the paroccipital process, which is greatly 

 elongated. When an auditory bulla is developed, it is formed by 



