V °'s,» VI ] NinUl S "PP lement to the A - °- U - Check-List. 99 



39. Gavia alba (Gunn.) . This hence becomes 

 Pagophila alba (Gunn.). 



Lanis albus Gunn. in Leem's Beskr. Finm. Lapp. 1767, 285. 

 Pagophila alba Goues, Auk, XIV, July, 1897, 313. 



64. Sterna tschegrava Lepech. This becomes 

 Sterna caspia Pallas. 



Sterna caspia Pallas, Nov. Coram. Petrop. XIV, 1770, 582, 

 pi. xxii, fig. 2. 



This change is made on the grounds (1) that Lepechin was 

 not binomial in the article in which he named Sterna tschegrava, 

 and (2) that Sterna caspia Pallas, of even date, was the name 

 first used by a subsequent author. {Cf. Coues, Auk, XIV, Julv, 

 1897, 314.) 



Subgenus HALIPLANA Wagler (Check-List, 2d ed., p. 26). 

 This becomes 



Subgenus ONYCHOPRION Wagler. 



Onychoprion Wagler, Isis, 1832, 277. Type, Sterna serrata 

 Forster = S. fuliginosa Gmel. {Cf. Coues, Auk, XIV, 

 July, 1897, 314.) 



82.1. Diomedea immutabilis Rothsch. 



Laysan Albatross. 



Diomedea immutabilis Rothschild, Bull. Brit. Orn. Club, 

 No. IX, June, 1893, p. xlviii. 



[B— , C— , R— , C— .] 



Geog. Dist. — Laysan Islands; San Geronimo and Guadalupe 

 Islands, Lower California. {Cf. Anthony, Auk, XV, Jan. 189S, 

 38.) 



Family PROCELLARIID-ffi (Check-List, 2d ed., pp. 29- 

 38). For the two present subfamilies (Procellariin.e and 



