ANIMAL MECHANICS. 



103 



It will be seen, on comparing these results with those 

 already given for Man and the Quadrumans, that the Otter's 

 foot, used for swimming, resembles that of Man ; and that the 

 feet of the Carnivores differ widely from those of Man and 

 the Quadrumans, being characterized by an enormous 

 strengthening of the flexor tendons of the toes. The scratch- 

 ing and digging actions of the hind claws of these Carnivores 

 are essentially distinct from the grasping actions of the feet 

 of the monkeys, as well as from the swimming motions of the 

 feet of Man and the Otter. 



(/.) The Ungulates. — Of the even-toed ungulates, I have 

 examined the flexor tendons of the Ox and Goat ; and of 

 the odd-toed, those of the Rhinoceros. 



i. The tendons of the foot of the Ox (Zebu Cow) are 

 shown in Fig. 11, and their relative cross sections are as fol- 

 lows : — 



Bengal Tiger (long flexors of toes). 



1. First toe, 28.3 percent. 



2. Second toe, 24. 6 „ 



3. Third toe, 21.8 „ 



4. Fourth toe, 180 ,, 



5. Retractor of pad, .... 7.3 „ 



Total, . . .100.0 



Bengal Tiger (long flexor tendons of foot). 



Weignt. 



1. Flexor digitorum longus, . . 12.2 percent. . 1.5702. av. 



2. Flexor hallucis longus, . . . 35.8 „ . 6.52 „ 



3. Accessorius, 6.0 



Friction, <Sfc., 46. o ,, 



Total, 



100.0 



