108 



ANIMAL MECHANICS. 



i. In the foot of the Armadillo, the fl. hall. long, of other 

 animals constitutes the whole of the deep flexor of the toes, 



Fig. 13. 



and is inserted, Fig. 13, into a plantar sesamoid bone, from 

 which radiate five tendons, distributed to the five toes. 



The muscle, which corresponds to the fl. dig. long., is 

 inserted into the near end of the first metatarsal. 



The relative strengths of the fl. hall. long, and of the 

 tendons of the toes are as follows : — 



Six-banded Armadillo {long flexor tendons of foot.) 



Weight. 



I. Fl. hall, long., 55.6 percent. . 0.11 oz. av. 



Friction, Sfc., . 44.4 



„ . 0:02 



100.0 





1 . Flexor of first toe, 



13.2 per cent. 



2. second toe, 



. 22.2 ,, 



3. third toe, 



• 24.4 



4. „ fourth toe, 



. 22.2 „ 



5. „ fifth toe, 



. 18.0 



Total, 



. 100.0 



2. In the three-toed Sloth, the arrangement of the tendons 



