AVES. 



89 



the Chatham Ishmds {Diaplwra^itcryx) and Mauritius {Aphan- 

 apteryx), are of great interest on account of their close 

 resemblance to each other and to the living M'eka rail 

 {Oeydromus) of New Zealand. As they are all unable to fly, 



Table-case 



13a. 

 Case BB 





Fig. 85.— Skeleton of a toothed flying bird, Ichthyornis victor, from the 

 Cretaceous of Kansas, U.S.A. ; one-half nat. size. (After Marsh.) 



it is difficult to understand liow they reached such widely 

 separated islands. They are illustrated l)y various specimens 



