VERTEBRATA (CHORDATA). 99 



CLASS IV. AVES (BIRDS). 



SUB-CLASS I. KATITVE. 

 ORDER, CURSORES. 



Fam. a. Struthionidse. Struthio (Ostrich). 

 Fam. &. Eheidae. Rliea (American Ostrich). 

 Fam. c. Dromseidse. Dromaius (Emeu). 

 Fam. d. Casuariidse. Casuarius (Cassowary). 

 Fam. e. *Dinornithidie. Dinornis. 

 Fam. /. *^Epyornithidte. ^Epywnis. 

 Fam. g. Apterygidse. Apteryx (fig. 89). 



(Owen, Memoir on Dinornis, Loncl., 1866-73 ; Owen, Anatomy of the 

 Southern Apteryx, Trans. Zool. Soc., 1838 and 1842 ; Owen, On Di- 

 nornis, Trans. Zool. Soc., 1839-64 ; Parker, On the Skull of tlie Ostrich, 

 Phil. Trans., 1866.) 



Fig. 89. Cursores. Apteryx aiistralis, New Zealand. 



SUB-CLASS II. CARINAT^. 

 ORDER I. NATATORES. 



Sub-ord. 1. Brevipennatse. 



Fam. a. Spheniscidte (Penguins). Spheniscus,Aptenodytes. 



