44 



910. Lestris antarcticus 



Antarctic Skua or Sea Hen, Fal. Ig, 



911. Larus canus 



Common Gull, Eup. 



912. Larus delawarensis 



Ring-billed Gull, Amer. 



913. Larus marinus 



Greater Black-backed Gull, Eup. 



914. Larus dominicanus 



South American Gull, Falk. Island 



915. Larus fuscus 



Lesser black-backed Gull. Eup. 



916. Larus glaucus 



Glaucous Gull, Eup. 



917. Larus leucopterus 



Iceland Gull, Eup. 



918. Larus argentatus 



Herring Gull, Eup, 



919. Larus calif ornicus 



Californian Gull, Amer. 



920. Larus kucopluzus or Heuglini 



Bellow-legged, or Heuglin's Her- 

 ring Gull, Eup. 



921. Larus occidentals 



Western Herring Gull, Amer. 



922. Larus hemprichi 



Gulf of Aden. 



923. Larus ichthyaetus 



Great black-headed Gull, Eup. 



924. Larus ridibundus 



Black-headed Gull, Eup 



925. Larus atricilla 



Laughing Gull, Eup. Amer. 



926. Larus melanocephalus 



927. Larus Philadelphia 



Bonaparte's Gull, Amer. 



928. Larus minutus 



Little Gull, Eup., Amer. 



929. Larus gdastes 



Slender-billed Gull, Eup. 



930. Larus tridactylus 



Kittiwake Gull. Eup., Amer. 



931. Larus orachyrhynchm 



American Mew Gull, Amer, 



