XX 



INTRODUCTION. 



faculty of smell), but the frontal bones may or may not contain air- 

 cavities or " frontal sinuses." 



The bone of the lower jaw, or mandible, may * or may not present 

 the appearance of a lobe or process at its postero-inferior margin, 

 causing it to look as if the angle of the mandible had been pushed up 

 towards the mandibular condyle. 



Fig. 9. 



Fig. 10. 



Bones of the extremities of Canis dingo. 

 Pig. 9. Skeleton of the manus or fore paw. fa '&^ 

 Fig. 10. Skeleton of the pes or hind paw. '* tlHf) 



Bones of the Limbs. The blade-bone, or scapula, is narrower in 

 proportion to its length than in the Felida, and the fossa for the supra- 

 spinatus muscle is relatively smaller, while the metacrornion process t 

 is quite rudimentary. The collar-bone, or clavicle, is, almost always, 



* See below, the description and figure of the skull of C. procyonoides. 

 t Op. cit. pp. 90 & 01, figs. 51 & 52. 



