ORNlTHOLOnirAL EXPLORATIONS. ' 73 



with Wacliisb back is wholly unknowu to the inhabitants of Copper 

 Island also. 



When I arrived at Petropaulski, Kamtschatka, on the 14th of May, 

 1883, I found the same species pretty common on the ice, covering the 

 lake, or rather lagoon, to the north of the town, but as the ice was 

 very dangerous, the birds were either out of range, or if shot, impossi- 

 ble to get at. Two were obtained, however, but being too badly dam- 

 aged to be preserved, only notes of the colors were taken. The color 

 of the feet of the living bird was also observed through a powerful 

 binocular, and noted, being in all cases the same uniform pinkish flesh 

 color. 



From the inhabitants I learned that this bird breeds at Babuschkin 

 Kamen, in the Bay of Avatscha, and on Staritskof Island, south of the 

 entrance to that bay. 



Two additional specimens have been received since the above was 

 written, an adult (U. S. Nat. Mus., No. 101665) and a young changing 

 into the adult plumage (No. 101666), both from Petropaulski. The 

 mantle is slightly lighter than that of the type specimen, but otherwise 

 they agree. The feet are now dark pink, and have evidently been 

 pinkish flesh color in life, as were all the birds of the species I have 

 seen. This character at once distinguishes L. scJiistisagvs from L. affi- 

 ni.s, which is said to have the feet yellow, and also from L. marinus, in 

 wliich the flesh color is very pale and rather grayish. 



In the following the first measurement is that of the adult bird (No. 

 101665), the second one that of the young (No. 10166G) ; length of wing 

 is not given, as both birds are moulting the primaries : 



Millimeters. 



Tail-feathers 103-180 



Chord of culmen 58- 56 



Bill along gape 79- 83 



From nostrils 28- 27 



Height at fore border of nostrils 20- 22 



Tarsus 69- 76 



18. Larus kamtschatchensis (Bonap.)- 



1826.— Larus 7iiveus Pall., Zoogr. Eoss. As., II, p. 320 {nee Bodd., 1783, qni Gavia alba 



GUNN.).— Bonap., Consp. Av., II, p. 224 (1856).— Whitely, Ibis, 1869, p. 



210.-BLAK1ST. & Pkyer, Tr. As. Soc. Jap., VIII, 1880, p. 189 {part).— lid., 



ibid., X, 1882, p. 104.— Taczan,, Bull. Soc. Zool. France, 1883, p. 341. 

 1854.— Gawna tamfsc/iafsc/fcH.'.is Bonap., Naumannia, 1854, p. 215 (cfr. Id., ConsY>. Av , 



II, p. 224, and Rev. & Mag., 1857, Extr. No. 2, p. 10). 

 1878.— Larus dilaivarensis Saunup:ks, P. Z. S., 1878, ]). 176 (part; nee Ord).— Seeb., 



Ibis, 1879, p. 24.— Blakist. & Pryer, Tr. As. Soc. Jap., X, 1882, p. 104.— 



Blakist., Amend. List B. Jap., p. 20 (1884). 

 1878.—.^ Larus californic.ns Saunders, P. Z. S., 1878, p. 175 {part; nee Lawr.).— Seeb., 



Ibis. 1879, p. 24. 



