LIST OF PLATES 119 



X 



Plate 47. 



Riippell's Tern 



(Astola Island, Mckran Coast, June 10, 1878, Capt. Butler). 

 Gull-billed Tern. 

 Caspian Tern. 



Plate 48. 



Sandwich Tern. 

 Sooty Tern. 



Plate 49. 



Black Tern. 



Noddy. 



White-winged Black Tern. 



Whiskered Tern. 



Plate 50. 



Glaucous Gull. 

 Kittiwake. 

 Ivory Gull 

 (Prince Patrick's Island, June 21, 1853, Capt. M'Clintock). 



Plate 51. 



Herring Gull. 

 Iceland Gull 



(Greenland, May 28, 1878, Ellingren). 

 Lesser Black-backed Gull. 



Plate 52. 



Common Gull. 



Greater Black-backed Gull. 



Laughing Gull. 



