186 CONTRIBUTIONS TO THE NATURAL HISTORY OF ALASKA. 



48. Larus schistisagus Stejn. Slaty-backed Gull. 



52. Larus cachinnans Pall. Pallas's Gull. 



53. Larus californicus Lawr. California Gull. 



55. Larus braohyrhynchus Rich. Short-billed Gull. 



60. Larus Philadelphia (Ord). Bonaparte's Gull 



Genus Rhodostethia Maggillivray. 



61. Rhodostethia rosea (Maggil.). Ross's Gull. 



Genus Xema Leach. 



62. Xema sabinii (Sab.). Sabine's Gull. 



Genus Sterna Linnaeus. 



71. Sterna paradis^a Briinn. Arctic Tern. 

 73. Sterna aleutica Baird. Aleutian Tern. 



Genus Hydrochelidon Boie. 



77. Hydrochelidon nigra surinamensis (Gmel.). Black Tern. 



Family DIOMEDEID^E. Albatrosses. 



Genus Diomedea Linnaeus. 



81. Diomedea nigripes Aud. Black-footed Albatross. 



82. Diomedea albatrus Pall. Short-tailed Albatross. 



Family PROCELLARIIDiE. Fulmars and Shearwaters. 

 Genus Fulmarus Stephens. 



86b. Fulmarus glaoialis glupisoha Stejn. Pacific Ftdmar. 

 86c. Fulmarus glacialis rodgersii (Oast..). Bodgers's Fulmar. 



Genus Puffinus Brisson. 



96. Puffinus tenuirostris (Teinm.). Slender-billed Shearwater. 



Genus .ZEstrelata Bonaparte. 



100. JEstrelata fisheri Ridgw. Fisher's Petrel. 



Genus Oceanodroma Reichenbach. 



105. Oceanodroma furcata (Gmel.). Fork-tailed Petrel. 

 105.1. Oceanodroma hornby (Gray). Hornby's Petrel. 



106. Oceanodroma leucorhoa (Vieill.). Leach's Petrel. 



Family PHALACROCORACID^. Cormorants. 



Genus Phalacrocorax Brisson. 



1206. Phalacrocorax dilophus cincinatus (Brandt). White-crested Cormorant. 



•123. Phalacrocorax pelagicus Pall. Pelagic Cormorant. 



123a. Phalacrocorax pelagicus robustus Ridgw. Yiolet-green Cormorant. 



124. Phalacrocorax urile (Gmel.). Bed-faced Cormorant. 



(?) Phalacrocorax perspicillatus Pall. Pallas's Cormorant. 





