sk. 



1'). I.AKUS. 



Yedo Bay, Japan, May. 



x". (S jiiv. sk. Nagasaki, Japan, Feb. 



I/", s". cJ ad. sk. Corea. 



283 



II.M.S. ' ChaUenger ' 

 E.xped. 



F. ILiugur, Esq. [P.]. 



G. W.Oampbbll, Esq. 



[P.]. 

 II. kSauuders Coll. 



«■', i^. 2 ad. ut Shangliai, Jan. {G. Stephen) 



hum. sk. 



c\ Ad. sk. Fokien. J. Gould Coll. 



</'-/'. Juv., imm., Amoy, Jan., Feb. (i2. Swinhoe). ISeebohm Coll. 



et ad. sk. 



(f. Ad. sk. Anioy, Mar. {M. Swinhoe). H. Saunders Coll. 



h^. Ad. sk. Formosa. li. Swinhoe, Esq. 



[P.]. 



P-l'K Skeletons. England. Purchased. 



»«'. Sternum. England. John Hay, Esq. [P.]. 



39. Larus brachyrhynchus. 



Larus canus, Sw. ^ Rich, {nee Linn.) F. Bor.-Amer., Birds, p. 420 



(1831 : adult) ; Nutt. 3Ian. ii. p. 301 (1834).. 

 Larus brachvrhvnchus, Hich. in Siv. •$• Rich. F. Bor.-Amer., Birds, 



p. 42:i (1831 : 'juv.. Bear Lake) ; Nidt. Man. Orn. ii. p. 301 (1834) ; 



Coues, Fr, Fhilad. Acad. 18G2, p. 302 ; Elliot, New ^- Uyifiy. B. 



N. Amer. ii. pi. 53 (1869) ; Ball ^- Bann. Tr. Chic. Acad. i. 



p. 305 (1809) ; Saunders, P. Z. S. 1878, p. 178 (revision Larinae) ; 



Ridffw. Bull. U.S. Nat. Mus. no. 21, p. 52 (1881) ; Cones, Chech-l. 



N. Amer. B. p. 121 (1882) ; id. Key N. Amer. B. 2nd ed. p. 746 



(1884) ; Baird, Breiver, ^- Ridyw. IVater-B. N. Amer. ii. p. 247 



(1884) ; Turner, Contrib. N. R. Alaska, p. 126 (1880) ; A. O. U. 



Check-l. B. N. Amer. p. 90 (1886) ; Ridyw. Man. N. Amer. B. 



p. 34 (1887) ; Nelson, Rep. N. H. Alaska, p. 54 (1887). 

 Larus suckleyi, Lawr. Ann. Lye. N. Y. 1854, p. 264 ; Baird, Cass., 



■^- Lawr. B. N. Amer. p. 847 (1858) ; Schley. Mus. F.-Bas, Lari, 



p. 27 (1863) ; ? Blasius, J.f. O. 1865, p. 381. 

 IJissa septentrionalis, Laiur. Ann. Lye. N. Y. 1854, p. 266 (adult) ; 



Baird, Cassin, t^- Lawr. B. N. Amer. p. 854 (1858) ; Baird, Cat. 



N. Amer. B. no. 673 (1859). 

 Larus canus, var. brachyrhvnchus, Coues, Key N. Amer. B. p. 313 



(lb72) ; id. Check-l. N. Amer. B. no. 549 (1873) ; id. B. N.- West, 



p. 638 (1874). 



Adult male in hn^edinij-plumaye. Similar to L. canus, but smaller, 

 ■with the mantle of a darker and bluer grey than in Western 

 examples of that species, and with more white in the primaries. All 

 these are tipped with white, but the outermost least ; the 1st quill 

 blackish ou the greater part of the outer web, with a long grey wedge 

 on the inner web and more or less of a blackish baud from the 

 shaft to the inner margin, below which is a long white mirror on 

 both webs, followed by a subterminal bar of black ; 2nd ijuill chieHy 

 gicy basally ou both webs, with little of the black band— and some- 

 times none at all — above the white mirror, which is followed by the 

 iisual bar ; 3rd, 4th, and 5th similar, the grey from the base 

 joining the white above the bar; 6th with only a half bar on the 

 inner web ; succeeding quills grey tipped with white. In less 

 mature birds there is a larger proportion of dark colour and the 6th 



