Mil 



PHYLUM CHORDA'l'A 



411 



Flo. 1051.— Apteryx australis, with egg. (From a specimen in the Royal College 



<'f Surgcon.s, London.) 



OiiDER 2. — Apteryges. 

 Including only the Kiwi.s {Apteryx, Fig. 1051). 



Order 'l — Dinornitijes. 

 Including the Moas {DinorQiithidcc, Fig. 10(i9). 



Order 4.- — Rhe.e. 



Including the South American Ostriches {Ilhca). 



Order 5. — Struthiones. 

 Including the true Ostriches (Struthio). 



Order 6. — tEryornithes. 



Including only the post-Pliocene Madagascan genoa ^pyornis 

 and Midlerornis. 



