LIST OF OSTEOLOGICAL SPECIMENS. 



Procellaria, Linn. 



The Fulmar Petrel. Procellaria glacialis. 

 Sternum. Europe. From M. Lefevre's collection. 

 Skeleton. Europe. From M. Lefevre's collection. 



Diomedea, Linn. 



The Wandering Albatross. Diomedea exulans. 

 Skull. 



The Sooty Albatross. Diomedea fuliginosa. 

 Skull. 



Stercorabius, Briss. 



The Arctic Gull. Stercorarius parasiticus. 

 Sternum. Europe. From M. Lefevre's collection. 

 Skeleton. Europe. From M. Lefevre's collection. 



The Skua Gull. Stercorarius catarractes. 

 Sternum. Europe. From M. Lefevre's collection. 



The Pomarine Gull. Stercorarius pomarinus. 

 Sternum. Europe. From M. Lefevre's collection. 



The Stercorarius ? 



Sternum. Europe. From M. Lefevre's collection. 



Larus, Linn. 



The Black-backed Gull. Larus marinus. 

 Sternum. England. Presented by John Ray, Esq. 

 Skull. England. Presented by John Ray, Esq. 

 Skull? England. 



Sternum. Europe. From M. Lefevre's collection. 



The Larus islandicus. 



Sternum. England. Presented by John Ray, Esq. 



The Silvery Gull. Larus argentatus. 

 Sternum. England. Presented by John Ray, Esq. 



The Common Gull. Larus canus. 

 Sternum. England. Presented by John Ray, Esq. 



The Larus -? 



Three Sterna. Europe. From M. Lefevre's collection. 



Xema, Leach. 



The Black-headed Gull. Xema ridibunda. 

 Sternum. England. Presented by T. Ingall, Esq. 

 Sternum. Europe. From M. Lefevre's collection. 



