98 Ninth Supplement to the A. O. U. Check-List. \j™. 



Genus URINATOR Cuvier. This becomes 



Gents GAVIA Forster. 



Gavia Forster, Enchirid. Hist. Nat. 1788, 38. No type, 

 but based exclusively upon the Loons. (Cf. Allen, Auk, 

 XIV, July, 1897, 312.) Henc2 Nos. 7 to 1 r will stand as 

 follows : 



7. Gavia imber (Gunn.). 



Colymbus imber Gunnerus, Tronclh. Selsk. Skr. I, 1761 



pi. iii. 

 Gavia imber Allen, Auk, XIV, July, 1897, 312. 



8. Gavia adamsii (Gray). 



Colymbus adamsii Gray, P. Z. S. 1859, 167. 

 Gavia adamsii Allen, Auk, XIV. July, 1897, 312. 



9. Gavia arctica (Linn.). 



Colymbus arcticus Linn. S. N. ed. 10, I, 1758, 135. 

 Gavia arctica Allen, Auk, XIV, July, 1897, 312. 



10. Gavia pacifica (Lawr.). 



Colymbus pacificus Lawr. in Band's Bds. N. Am. 1858, 889. 

 Gavia pacifica Allen, Auk, XIV, July, 1897, 312. 



11. Gavia lumme (Gunn.). 



Colymbus lumme Gunnerus, Trondh. Selsk. Skr. I, 1 761, "pi. 



ii, fig. 2. 

 Gavia lumme Allen, Auk, XIV, Ju'y, 1897, 312. 



Genus GAVIA Boie (Check-List, 2ded., p. 15). This becomes 

 Genus PAGOPHILA Kaup. 



Pagophila Kaup, Skizz. Entw.-Gesch. Eur. Thierw. 1829, 69. 

 Type, Larus ebumeus Phipps = Z. albus Gunn. {Cf. 

 Coues, Auk, XIV, July, 1897, 313.) 



