100 



ANIMAL MECHANICS. 



Australian Dingo ( long flexor tendons of foot). 



Weight. 



1. Flexor hallucis longus, . 53.5 per cent. . 0.59 oz. av. 



2. Flexor digitorum longus, 12.7 „ . 0.10 



3. Friction, fyc. fyc, . . . 33.8 



Total, . . . 100.0 



7. In the Pyrenean Mastiff, two " dew claws" or spurious 

 toes are found, in addition to the regular four toes characte- 

 ristic of the digitigrade carnivores. The relative strengths of 

 the tendons supplying the six toes were found to be— 



Pyrenean Mastiff {long fle 



1 . First toe, . . . 



2. Second toe, . . 



3. Third toe, . . . 



4. Fourth toe, . . 



5. Fifth toe, . . . 



6. Sixth toe, . . . 



Total, 



Pyrenean Mastiff {long flee 



1. Fl. hall, long, 28.1 per 



2. Fl. dig. long., 6.5 „ 



3. Friction, fyc, 65.4 ,, 



Total, . IOO.O Fl. dig. Fl. hall. 



Fig. 10. 



8. The Otter possesses regularly five toes, supplied with 

 long flexor tendons nearly equal in strength. If the united 



