270 



part.) ; ? Ball ^- Bann. Tr. Chic. Acad. i. p. 305, no. 181 (1869: 



Up. Yukon) ; Bunge, Mel. Biol. xii. livr. i. p. 47 (1884 : Lena 



delta). 

 Larus argentatus, var. cachinnans, Schrenck, Reis. Amu7-l. i. p. 604 



(1859). 

 Larus fuscus, Swinh. Ibis, I860, p. 68 (Amoy). 



(1857). 

 ? Larus ichthyaetus, Cassin, in Perry'' s U.S. E.xpl. Exped. p. 232 



(1858: Japan, juv.). 

 Larus occidentalis (nee And.), Suinh. P. Z. 8. 1863, p. 326 (Amoy) ; 



Whiteley, Ibis, 1867, p. 210 (Japan) ; Hartimj, P. Z. S. 1871, 



p. 122 (Choris Penins., Voy. 'Plover') ; Siuinli. t. c. p. 421 ; id. 



Ibis, 1875, p. 140 (Clieefoo) ; Prjev. in Roioley's Orn. Misc. iii. 



p. 109 (1878 : S.E. Mongolia on migr.) ; David Sf Oustal. Ois. Chine, 



p. 520 (1878) ; H. H. Slater, Ibis, 1882, p. 436 (Hankow) ; 



Sicinh. Ibis, 1863, p. 428 (Formosa) ; id. P. Z. S. 1863, p. 327 



(Amoy) ; id. Ibis, 1870, p. 3G6 (Hainan) ; Gray, Hand-l, B. iii. 



•p. 113, part. (1871) ; id. P. Z. S. 1871, p. 421. 

 ? Larus borealis, Baird, Tr. Chic. Acad. i. p. 321 (1869); Ball 8^ 



Bann. t. c. p. 305, no. 182 (Alaska) ; Cxray, Hand-l. B. iii. p. 113 



(1871: Kamtschatka) ; Tacz. Bull. Soc. Zool. Fr. 1876, p. 263; 



id. op. cit. 1882, p. 397 (Kamtschatka). 

 Larus argentatus, d. borealis, Cones, B. N.-West, p. 626 (1874). 

 Larus cachinnans, Saunders, P. Z. S. 1878, p. 169 (partim) ; 



David Sj' Oustal. Ois. thine, p. 519 (1878) ; Bidgw. Bull. U.S. 



Nat. Mis. no. 21, p. 52 (1881) ; Nelson, Cruise * Corwin^ 



p. 107, no. 152 (1883) ; Seebohm, Ibis, 1884, p. 270 (Kiukiang) ; 



Baird, Breicer,8f Ridgw. Water-B. N. Amer. ii. p. 240 (1884: 



Pacitic coast) ; A. 0. U. Check-l. N. Amer. B. p. 89 (1886) ; 



Ridgio. Man. N. Amer. B. p. 30 (1887) ; Gigl. ^ Salvad. P. Z. S. 



1887, p. 692 (Vladivostok and Corea) ; Taczan. op. cit. 1888, p. 485 



(Corea) ; Seeb. Ibis, 1890, p. 105 (Bonin Is.) ; id. B. Japan. Emp. 



p. 291 (1890) ; Styan, Ibis, 1891, p. 608 (Lower Yangtse) ; Seeb. 



Ibis, 1892, p. 96 (Tsu-sima Is., Japan) ; De la louche. Ibis, 1892, 



p. 501 (Foochow &c., winter) ; Hartl. Abh. Ver. Bremen, xii. 



Heft ii. p. 334 (1892 : Pakhoi) ; Seeb. Ibis, 1893, p. 53 (Loo-choo 



Is.). 

 Larus afRnus (sic). Nelson, Cruise 'Conmn,^ p. 107 (1883). 

 Larus argentatus, var. vegre, Palmen, Vega-E.vped., Vetensk. Bd. v. 



p. 370 (1887) t ; Taczan. Mem. Acad. Petersb. xxxix. p. 1028 (1893 : 



E. Siberia coast). 

 Larus vegfe, Stejjt. Auk, 1888, p. 310 (critical) ; Seebohm, Ibis, 1889, 



p. 349 (Gt. Liakoff Is., Bunge) ; Saunders, Bull. Brit. Orn. CI. 



no. XV. p. xxiv (1894). 



Adult male in hrceding-plumage. Differs from L. cachinnans 

 in the colour of its tarsi and toes, which are pale flesh-colour, and 



* Fasc. i. of Brandt's 'Dcser. et Icon. Anim. Eoss. Nov.,' Aves, waa pub- 

 lished at St. Petersburg in 1836 ; but it does not appear tliat the letterpress of 

 fasc. ii. was ever published, although some copies of a plate lettered iv. flg. 1, 

 Larus borealis, were distributed, and the late Prof. Schlegel had one of them. 

 Brandt's bird may be L. schisfisagiis. 



t For the use of a translation of Professor Palmen's admirable ' Eeport on 

 the Birds of the ' Vega ' Expedition ' I am indebted to Mr. Seebohm. 



