88 



HITCHCOCK'S ANATOMY 



which has the longest neck, has only seven cervical vertebrae, 

 the same number with the Mole (Fig. 98), an animal with 



Fig. 98. 



Skeleton of the Mole. The illustrative Figures represent the same as in Fig. 97. 



one of the shortest necks among quadrupeds. Cuvier states 

 that in general the length of the neck is such, that, added to 

 the head, the length of both is equal to the height of the ani- 

 mal's shoulders above the ground. If this were not the case, 

 grazing animals could not reach their food, nor any quadru- 

 peds their drink without bending the legs. 



194. Shape of Body. — The shape of the body of quadru- 

 peds, whether slender, or short and thick, depends on the 

 number and size of the Lumbar and Dorsal vertebrae. 



195. Bones of Skull. Elephant's Head. Styloid, and 

 Tympanic Bones. — The general arrangement of the bones 

 of the skull, as well as their number, corresponds very nearly 

 with those of man. The two Parietals are usually small 

 bones, and sometimes united into one. This is true of the 

 Horse and the Bats. In the Hog and Rhinoceros the two 

 parietal bones are united in one, while their frontal bone is 



What peculiarity about Lumbar? What of the Sacral? How largo a number of Sa- 

 cral are sometimes found ? 193. Upon what does the length of neck in quadrupeds de- 

 pend on ? Instance the Giraffe and Mole. What is the general rule about the length of 

 the neck? 194. What does the shape of the body mainly depend on? 195. How do 

 the Parietals sometimes differ from man ? 



