SCOTT : TOXODONTA OF THE SANTA CRUZ BEDS. 
151 
curved hook of unusual size. There is a distinct coraco-scapular notch, 
above which the blade widens abruptly. The coracoid border is gently 
convex and curves uninterruptedly into the suprascapular border, which 
Fig. 21 . 
Toxodon burmeisteri : Left scapula, outer side, 
X T La Plata Museum. 
Fig. 22. 
Nesodon imbricatus : Left scapula, 
outer side, X f • 
is arched and joins the glenoid border by a pronounced angulation. The 
glenoid border, though slightly sinuous, is nearly straight and, above the 
neck, the blade is not far from being of uniform width throughout. The spine 
begins a little below the suprascapular border, rising gradually to its full 
