54 



inner ridge a thicker and more solid coracoid apophyse 

 projects in the shape of a parallelogram. 



DIMENSIONS OF THE SCAPULA. 



Greatest length 



Width of convex side 



Ditto concave side 



Ditto anterior side 



Breadth of neck 



Projection of the acromion 



Greatest height of ditto 



Projection of coracoid apophyse , 

 Height of ditto at the extremity 



With respect to the humerus, that apophyse on the front 

 edge of it which is so conspicuous in true sperm whales, and 

 which represents the deltoidal crest, is here very little promi- 

 nent, but in length it occupies more than one-half of the front 

 edge. The humerus itself is flatter than in Catodon, very 

 concave behind, and in front presenting a waved edge. 



Total length of humerus 



Greatest width of ditto 



Semi- diameter of hemispherical head. 



Inches. 

 4 



2 1-5 

 2 



The cubitus or ulna is not confluent or soldered to any 

 other bone, but perfectly a distinct piece, like the radius. The 

 thin posterior edge of the cubitus is waved, and the olecranian 

 apophyse projects so very little as to make its base not wider 

 than the other end of it. The radius is in shape and dimen- 

 sions very like the cubitus, only it is thicker and more solid. 

 The width of radius at top and bottom is nearly the same, 

 only in the middle it is constricted and flattish as well as the 



