22 



ORNITHOLOGICAL EXPLORATIONS. 



List of specimens collected. 



89098 

 92940 



1037 

 2017 



92941 2016 



92942 2018 



92943 1469 



Locality. 



92937 

 92938 



Bering Island . 



do 



do 



do 



do 



do 



2270 Copper Island. 

 2269 do 



2774 



May 11,1882 

 May 8,1883 

 May 8,1883 

 May 8,1883 

 Aug. 15, 1882 

 Sept. — , 1883 

 July 20, 1883 

 July 20, 1883 



d" ad. 

 d ad. 

 ? ad. 

 $ ad. 

 ? jun. 

 juv. 

 pull, 

 pull. 



mm. 

 347 

 335 

 342 

 355 

 316 



164 

 129 



mm,. I m/m. 



I 168 



13 I 169 

 16 173 

 8 177 

 163 

 148 



OTm. ! m,m. mm. 



55 I 30 35 



*.3 



Tnm. 

 50 

 46 

 49 

 46 

 46 

 43 

 26 

 20 



Ifo. 92940.— Iris dark brown. Bill black. Feet deep vermillion; nails black. Fat. Stomach and 

 crop empty. Only a fevr feathers in their sheaths. 



No. 92941. — Colors as foregoing. Feathers all over the body still partly in their sheaths. 



Xo. 92939. — Iris dark browu. Bill reddish black, with a white knob at the tip ; angle of mouth 

 brownish red flesh-color ; interior of month pale salmon color. Feet reddish gray ; webs lighter ; tar- 

 sus behind blackish. 



I have seen it stated somewhere — without now being able to lay hand 

 on the reference — that the Black Guillemots pass from the white winter- 

 plumage to the black breeding garb without moult. The idea, how- 

 ever, is quite erroneous, as amply proven by the remarks above. 



8. Cepphus carbo Pallas. 



1826.— CepjjfiH« carho Pall., Zoogr. Ross. As. II, p. 3.30.— Stejneger, Pr. U. S. Nat. 

 Mus. VII, Aug. 5, 1884, p. 225.— Uria c. Midden\)., Sibir. Reis. II, 2 (p. 239, pi. 

 xxiii, tig. 6), (1858).— Cassin, Pr. Philada. Acad. 1862, p. 323.— Schrenck, 

 Reis. Amurl. I, p. 496, pi. xvi, fig. 1 (1863).— Brandt, Mel. Biol. VII, 1869, p. 

 206.— SwiNH., Ibis, 1875, p. 458.— Taczan., J. f. Oru., 1876, p. 203.— Id., 

 Orn. Fauu. Vost. Sibir., p. 73 (1877).— irt., Bull. Soc. Zool. France, 1877, 

 p. 51.— Blakist. & Pryer, Ibis, 1878, p. 2li.— lid., Tr. As. Soc. Jap. 

 VIII, 1880, p. 180.— lid., ibid., X, 1882, p. 90.— Blakist., Amend. List B. 

 Jap., p. 32 (1884). — Alca c. Schlegel, Mus. P. B. Urinat., p. 17 (1867). 



The Pacific Sooty Guillemot seems to be restricted to a very limited 

 area, not being regularly found beyond the coasts of the Okotsk Sea, 

 and the Sea of Japan. Pallas's statement that it is frequent about 

 the Aleutian Islands, especially Unalashka is incorrect beyond doubt 

 (cf. my memoir, Pr. U. S. Kat. Mus. VII, 1884, pp. 224-227), although 

 stragglers of a nuiriue species like the present may be expected in the 

 adjacent waters. 



I introduce this species as an accidental visitor to the Commander 



