196 



THE MYOLOGY OF THE RAVEN. 



From the origin I have just given for the adductor 

 longus, its fibres pass downwards and forwards to be 

 inserted on a longitudinal line aclown the posterior 



FIG. 54. The pelvis of a Raven, seen upon its ventral aspect, with the skeleton 

 of the tail. Shows the area of origin of the obturator interims muscle, 

 as well as the muscle itself. The origin of the left femora-caudal is 

 also shown. Life-size, by the author, from his own dissections. 



aspect of the shaft of the femur (Fig. 46), from a point 

 rather above the insertion of the feinoro- caudal, all the 

 way to the base of the internal condyle of that bone. 

 The posterior margin of this muscle is connected to 



