1896.] ANATOMY OF PETROGALE XANTHOPUS. 703 
the head of the fibula. There is the usual insertion into the upper 
part of the inner border of the tibia. 
The Rotator fibule lies deep to the last, with which it is partially 
blended ; it rises from the posterior surface of the tibia in its upper 
part, and is inserted into rather less of the back of the fibula. Its 
fibres run obliquely upwards and outwards. 
Muscles of the Sole-—There is no muscular flewor brevis digitorum 
or accesorius. The intrinsic muscles form three layers, the first of 
Fig. 8. 
LLL TS aT] 
Pe) tess 
| 
Lee 
Muscles of the Sole of Petrogale. 
Abdr. Abductor minimi digiti. F1.B. Flexores breves. 
Addr. Adductor do. 
which consists of one adductor, which rises from the third meta- 
tarsal bone and runs to the proximal phalanx of the fifth toe. The 
