TABLE OF CONTENTS. IX 



Family Anatidae — Continued. Page. 



Fulix affinis 217 



Lesser scaup duck 217 



Habits 217 



Distribution 223 



Perissonetta collaris 224 



Ring-necked duck 224 



Habits 224 



Distribution 229 



References to bibliography 231 



Explanation of plates 241 



Index 247 



