36 



KANSAS UNIVERSITY QUARTEKLV. 



As will be seen, the greatest variations in the relative proportions 

 occur in the premolars and the first molar. 



p. leptoj'hin:isW., ventral surface of sacnTin, I. female: 'i.niale. Two-thirds natural size. 

 Scapula. 



The glenoid surface of the scapula is somewhat more oval than in 

 Dicotylcs, and the coracoid process is more prominent. The neck is 

 more elongate, the dilatation being higher up the bone, giving the 

 posterior border a marked concavity, where it is nearly straight in 

 Dicotylcs.. The anterior border is strongly convex on the upper part 

 thus making the supraspinous fossa much broader than in Dicotylcs. 

 The spine itself is stouter with a stouter rim, and with a stouter 

 posterior projection above. 



Length of scapula 208 mm. 



Antero-posterior diameter of glenoid surface 30 



Transverse diameter of same 26 



Least width of neck 22 



Greatest width distaliy 97 



■\Vi(lth of supraspinous tossa 40 



Humerus . 



The humerus has a more prominent great trochanter, v.'ith a stouter 

 protuberance posteriorly for the attachment of the infra-spinatus, a 



