216 Messrs. Blakiston and Piyer on 



Common on rivers. (Swiuhoe, Vo\%, 1875, p. 456.) 

 Yezo^ Rokugogawa. 



55. Mergus SERRATOR (L.). ^' Umi-aisa.'' 

 Common in Yezo. (Swinhoe, Ibis, 1875.) 

 Yezo. 



56. PhALACROCORAX CARBO (L.). "^^ U." 

 Carho cormoranus, F. J. 



Great numbers roost in some trees atBabasaka^in the centre 

 of Tokio ; tbey are seen flying over the city to their roosting- 

 place in immense V-shaped lines, three_, and even four hun- 

 dred yards long. This species is also found far inland in 

 YamotOj on the mountain-streams, feeding on trout. Common 

 on the coast of Yezo ; a very large specimen obtained at 

 Larushima (Perry Island), Tokio Bay, having the breast and 

 belly pure white. 



Yezo, Tokio, Yokohama, Yamato. 



57. PhALACROCORAX pelagicus, Pall. '' U-garasu." 

 This bird keeps always on the sea, and is never seen inland. 



Great numbers rest at night on Treaty Point, Yokohama, 

 during the winter, but do not stop the summer. Common 

 on the coasts of Yezo. (Swinhoe, Ibis, 1874, p. 164, et 1877, 

 p. 147.) 



58. PhALACROCORAX bicristatus. Pall. 

 Car bo bicristatus, F. J. 



Figured in the ' Fauna Japouica.' 



59. Sula leucogastra (Bodd.). 

 Sulafusca, F. J. 



Given in the list in the ' Fauna Japonica.' 



60. Sterna fuliginosa. Lath. 

 Figured in the ' Fauna Japonica.' 



61. Sterna MiNUTA, L. '^Ajisashi." 



A specimen, probably of this species, was obtained in Tokio 

 Bay, shot with a rifle while sitting on a piece of floating wood, 

 by Mr. A. Dare. 



