the Shoulder-girdle of a Plesioaaiir. 341 



tl)e inner end of which must liave been scjDarated by a con- 

 siderable interval from its fellow of the opposite side, and had 

 not yet commenced to grow back towards the coracoids, so 

 that the coraco-scapular foramina were widely open to one 

 another in the middle line. Of the thin anterior portion 



l'i^^ 3. 



c 





A 





A B 



A. — Eiglit half of an immature shoulder-girdle of Cryplodidus oxoniensis, 



frooi above. About 1 uat. size. 

 7>. — Left half of a younger speoimen of the same, from above. About 



-g nat. size, c, clavicle. 



supporting the clavicles only a very small part near the outer 

 border is yet developed, so that the whole of the clavicle 

 exce]jt a small portion of the outer limb would be visible 

 from below. As in the adult, the clavicles met in the middle 

 line. 



