416 



PALEONTOLOGY. 



do not project beyond the round "head" of the bone, so as to 



impede its movements in the socket. 



The blade-bone (scapula s) is of great breadth, with well- 

 developed processes (spine, 

 acromion, and coracoid) for 

 muscular attachments ; the 

 size and shape of this bone 

 relate closely to the volume 

 of the muscles which operate 

 upon the arm-bone and fore 

 limb. A small clavicular bone 

 (b) is interposed between a 

 muscle of the head and one 

 of the arm, giving additional 

 force and determination of 

 action reciprocally to both 

 muscles. 



Such are some of the modi- 

 fications of the teeth and frame- 

 work of a beast of prey, which 

 concur, and were deemed by 

 Cuvier to be correlated, in the 

 organization of such animals. 

 Let us compare them with 

 those of the corresponding 

 parts in an ox (fig. 161). The 

 teeth answering to the great 

 laniaries in the lion are absent ; 



Fig. 161. 



at most, 



the 



PaWological characters of a Rumi- Sinologues of the lower ca- 



nant {Bos). nines, reduced in size and 



altered in shape, so as to form the outer teeth (c) of a bent 

 row of incisors terminating the lower jaw. The back teeth 

 (Ji) instead of being trenchant, have broad and flat crowns, 



