Order COLYBMI. 



Family CC^LYMBID^. 



Colymbus I.. (1758). 



1. Colymbus Stellatus I'ontoppidan Abi. 



1763. — Colymbus stellatus Pontopp., Danskc Atlas, I, p. 621 



(DeniiKirk). 



Colymbus scptcntrionalis L. 

 Red-tliroated Diver. 

 Hab. Sakhalicn, Kurile Is., Hokkaido, Hondo, Shikoku, 



Kiusiu, Formosa, Corea, Quelpart Is. 



2. Colymbus arcticus viridigularis (D wight) CViamu. 



1918. — Gavia viridi^tilaris Dwight, Auk, p. 1 89 (North— east 



Siberia^ 



Colymbus arcticus (iiec L.), Uchida. 

 Siberian Black-throated Diver. 

 Hab. Sakhalien, Kurile Is., Hokkaido, Hondo, Shikoku, 



Kiusiu, Tsushima, Corea, Quelpart Is. 



3. Colymbus arcticus pacificus Lawrence Shirocri-ohainu 



1S60. — Columbus pacificus Lawrence, Baird's B. N. Amer., p. 



889 (Cahfornia). 

 Pacific Diver. 

 Hab. Hokkaido, Hondo (Sagami, Suruga), Shikoku (Sanuki). 



4. Colymbus adamsii Gray Hashijiro-abi. 



1859. — Colymbus adamsii Gray, Proc. Zool. Soc. London, p. 167. 



(Alaska). 

 White-billed Diver. 

 Plab. Xorthern Kurile Is., Hokkaido (Hakodate), Hondo (Sen- 



dai Bay, Sagami), Kiusiu, Corea. 



