518 STRUCTURE AND CLASSIFICATION OF BIRDS 



The pelvis is remarkable for the symphysis of the pubes, 

 which is shown in the accompanying figure (fig. 250). The 

 ischia also unite each with its corresponding pubis. There 

 is a well-developed pectineal process. GARROD ' and F. DAR- 

 WIN described a small ossification attached to the front 



ffflX 



FIG. 248. SKULL OF OSTRICH (AFTEE HUXLEY). 

 A", rostrum. Other letters as in fig. 244. 



margin of the pubis which may conceivably be the homologue 

 of the marsupial bone of the marsupialia. 



The skull of Apteryx has been described by OWEN 2 as 



1 ' Notes on an Ostrich lately living in the Society's Gardens,' P. Z. S. 1872, 

 p. 356. 



'' ' On the Apteryx australis,' Trans. Z. S. ii. p. 57, and iii. p. 277. 



