STEUTHIONES 



516 



The pelvis (fig. 245) has the pubes and ischia quite free 

 posteriorly in the dry skeleton ; but they are united by 

 cartilage, as in the latter with the ilium. The interobturator 

 process is present, and shuts off an anterior portion of the 

 obturator foramen. 



The skull of Casuarius ^ is very like that of Drommus. 



The number of cervical verterhrcB in Casuarius varies 

 from eighteen to nineteen. In the atlas the indication of the 



il 



Fia. 245. — Pelvis of Emu (aftek Mivaet). Lettebs as in Fio. 243. 



closing of the notch for the odontoid process may be com- 

 pleted, as is shown in the cut (fig. 68, p. US). The shoulder 

 girdle is very Hke that of the emu, possessing also rudimen- 

 tary clavicles. The membrana coracoidea may, however, 

 be ossified, and there are two foramina. One of these lies 

 between the membrana coracoidea and the coracoid, and 

 is therefore apparently the homologue of the foramen in 



1 W. H. Flowee, 'On the Skeleton of the AustraUan Cassowary,' P. Z. S. 

 1871, p. 32. 



L L. 2 



