514 



STRUCTURE AND CLASSIFICATION OF BIRDS 



nasal is only represented in the specimen before me by a 

 minute pointed bit of bone attached above to a point cor- 

 responding to that whence the ' naso-maxillary ' arises in 

 Bhea. 



DromcBus has twenty cervical vertebrce. The atlas is 



Fig. 244. — Skull of Emu (aeteb Huxley). 



Pmx^ premaxilla ; Mxp, maxillo-palatine ; Vo, Tomer ; Pl^ palatine ; Pt^ pterygoid ; 

 *, basipterygoid process. 



notched, very nearly perforated (fig. 66, p. 118). The^roeora- 

 coid is not quite so well developed as in Bhea, but there 

 are a pair of rudimentary clavicles. 



The sternum (fig. 74,' p. 129) ' much resembles that of 

 Bhea ;' it is not notched and is rather pointed at its 

 extremity. Three or four ribs reach it. 



