AYES. 



89 



the Chatham Islands (Diaphorapteryx) and Mauritius (Aphan- Table-case 

 apteryx), are of great interest on account of their close Ca gg q C 

 resemblance to each other and to the living weka rail 

 (Ocydromus) of New Zealand. As they are all unable to fly, 



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

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



it is difficult to understand how they reached such widely 

 separated islands, unless these are pieces of a comparatively 

 modern continent which has become submerged. They are 



