25 



Order U. ^PYORNITHES. 

 Order ni. AFTER YGES. 

 Order IV. CRYPTURI. 



(Order GASTORNITHES.) 



Super-Order II. IMPHNXHS. 

 Order V. PTILOPTERI. 



Family Spheniscid-s. 



Super-Order III. EUORNITHES. 



Order YI. CECOMORPH^. 



Super-family I. Colymboideae. 



Family 1. Colymbidje. 



(PoDiciPEDiu.?:, auct.) 



Super-family II. Heliornithoideae. 

 {Helioryiis.) 



Super-family III. Alcoideae. 



Family 1. Ueixatobidje, 

 ■2. Alcid^e. 



Super-family 1\ . Laroideae. 

 Family 1. Stercoeariidje. 

 2. Larid.e. 



Super-family \. Procellaroideae. 



Family 1. Diomedid.!:. 



2. Pkocellaeud^. 



3. PELECAXOrDID^E. 



Order YII. GRALL^. 



Super-family VI. Chionoideae. 



Family 1. Chionid^. 



2. Thtnocorid.^. 



Super-family VII. Scolopacoideae. 



Family 1. Glaeeolidje. 



2. Dbomadid^. 



3. Chaeadeiid.e. 



4. Jac.a:n'id-e. 



5. scolopacid.e. 



6. Gldicxemid.e. 



7. Otidid-e. 



Super-family VIII. Exirypygoideae. 



Family 1. Eubypygid^. 



2. Rhinochetid^je. 



3. 3Iesitid^. 



