76 ORNITHOLOGIC \L EXPLOUATIONS. 



The i)reseiit species seems not to be commou on tbe coast of Kam- 

 tsciiatka, where it probably breeds, however. The specimens procured 

 by me were obtiiined in the harbor of Petropanlski in May and October, 

 w^heu only a few were seen at the time. 



Another specimen was shot on Bering Island during my absence in 

 Kamtschatka and preserved. It was probably only a straggler, as the 

 species does not breed on the island. 



Since the above was written, Oapt. E. J. Hunter had the kindness to 

 send me another specimen shot, in the fall of 1884, at Petropaulski. It 

 closely resembles No. 92890, but the mantle is a shade deeper. The 

 measurements are embodied in the table above. 



19. Larus cauus Lin. 



1758. — Larus canus LiN., Syst. Nat., lOeil.,1, p. 136. — MiDDEND.,Sibir. Eeise, II, 2 (p. 



243) (1853).— SCHRENCK, Eeis. Amur]., I., p. 509 (1860) {part ?).—Swi^hoe, 

 P. Z. S., 1871, p. 420.— Saunders, P. Z. S., 1878, p. 177.— Blakist., & 

 Peyer, Tr. As. Soc. .Jap., VIII, 1880, p. 189 (2)artf).— lid. ihid., X, 1882, p. 

 104. — Blakist., Amend. List. B. Jap., p. 20. 



A single specimen, evidently a straggler, w^as collected by me on 

 Bering Island during the early part of the winter 1882. It is in every 

 respect, color, and size a typical canus, being absolutely identical with 

 a specimen from Denmark in the collection of the jSTational Museum. 

 In fact, I have seldom seen two members of the Lariue family so alike as 

 these two from the most extreme regions' of the Palaearctic continent. 

 The Danish bird is a trifle larger, but it may have been a male, as the 

 sex is not given on the label. 



The measurements of my specimen are as follows : 

 9 ad. U. S. JSTat. Mus. No. 92894 ; L. Stejneger, No. 1747. Bering Island, Noremher 26, 1882. 



Total length, 472""" ; ^viugs beyond tip of tail, 30'""' ; wiug, 337"'"^ ; tail-feathers, 

 139"'™ (fresh, niialiraded); chord of cnlnien, 35™™; bill from nostrils, 18™™; tar- 

 sns, 53"'"'. 



Iris cream color, with dark gray shadings. Bill, olive yellow, tip pnrer yellow ; 

 a,ngle of mouth, orange red. Naked eye-ring, dusky red. Feet, grayish olive yellow ; 

 joints darker, somewhat bluish ; webs purer yellow. 



The gullet was crammed with fish spawn, several Orchestice and other Gammaridw, 

 plenty of a small, blackish-brown chrysalis of a dipterous insect common on sandy 



beaches, and a small tish. 



20. Larus ridibundus Lin. 



1766. — Larus ridibundus Lin., Syst. Nat., 12 ed., I, p. 225. — NoRDM., in Ermau's Verz. 

 Thier. Pflanz. Eeis. Erde, p. 18 (1835).— Middend., Sibir. Eeis., II, 2 (p. 



244) (1853).— KiTTL., Denkw., II., p. 200 (1858).— Sciikenck, Eeis. Amurl., 

 I., p. 510 (I860).— Radde, Eeis. Sud. Ost-Sibir., II, (p. 387) (1863).— 

 Saunders, P. Z. S., 1878, p. 200.— Blakist. &, Pryer, Tr. As. Soc. Jap., 

 VIII, 18^0, p. 190.— lid., ibid., X, 1882, p. 105.— Blakist., Amend. List B. 

 Jap., p. 10 {1SH4). — Chroicoceplialus r. SwiNil., Ibis, 1863, p. 428.— 7^., ibid. 

 1874, p. 165.— /d., P. Z. S., 1871, p. 421.— Blakist. & Pryer, Ibis, 1878, p. 

 217.— Seeb., Ibis, 1879, p. 24. 



