PROCEJEDINGS 



OF THE 



WASHINGTON ACADEMY OF SCIENCES 



Vol. V, pp. 231-372. January 2S, 1904. 



PAPERS FROM THE HOPKINS-STANFORD GALA- 

 PAGOS EXPEDITION, 1898-1899. 



XVI. 



BIRDS. 



By Robert Evans Snodgrass and Edmund Heller. 



CONTENTS. 



Page. 



Introduction 234 



Family Sphenicidse 235 



1. Spheniscusmendiculus , 23S 



Family Stercorariidae ^ 236 



2. Stercorarius fotnarinus 236 



Family Laridse 237 



3. Larus fuliginosus ... 237 



4. Larus franklinii 237 



5. Creagrus furcatus . 237 



6. Sterna fuliginosa 239 



7. Anous stolidus galapagensis 239 



Family Diomedeidse 240 



8. Diomedea irrorata ■ 240 



Family Procellariidae 241 



9. Puffinus obscurus subalaris . . 241 



10. .^strelata fhcEopygia ^4^ 



11. Procellaria tethys • 242 



32. Oceanodroma cryptoleuctira . 243 



13. Oceanites gracilis .... 243 



Family PhaethontidiE ■ • • • • 243 



14. Phaetkon cethereus ... 244 



Family Sulidffi .... 244 



15. Sula variegata . . ... 244 



16. Sula piscatrix luebsteri . . • ... 246 



17. Sula nebouxi 248 



Proc. Wash. Acad. Sci., January, 1904. 231 



