504 



THE DIVING BIRDS — PYGOPODES. 



Synthliboramphus antiquus. 



THE BLACK-THROATED GUILLEMOT. 



Aim antiqiw, G.MEL. S. X. I. ii. 1788, 554, no. 11. 



Una antiqua, Temm. & Schleg. Fauna Jap. 1845, pi. 80. — Aud. Orn. Biog. V. 1839, 100, pi. 402, 



fig. 12 ; !'.. Am. VII. 1844, 263, pi. 470, fig. 1 (but not fig. 2, which = Brachyrampkus Kittlitzi, 



summer plumage). 

 Brachyramphus antiquus, Gray, Gen. B. III. 1849, 644.— Cass, in Band's B. N. Am. 185S, 916. — 



Baird, Cat. N. Am. 15. 1859, no. 730. 

 Brachyramphus (Synllt/il«>r<nuj/hus) antiquus, Brandt, Bull. Ac. St. Petersb. II. 1S37, 347. 

 Synlhliborhamphus antiquus, Coues, Pr. Ac. Nat. Sci. Philad. 1868, 56 ; Key, 1872, 344 ; Check List, 



1S73, no. 627 ; 2d ed. 1882, no. 864. — Brandt, Mel. Biol. VII. 1869, 217. — KlDGW. Num. 



N. Am. B. 1881, no. 753. 

 Uria senicula, Pall. Zoog. Bosso-As. II. 1826, 369, pi. 85. 

 M( njiil us drrhocephalus, Vic. Zool. Voy. Blossom, 1839, Birds, p. 32. 

 Brachyramphus brachypterus, Brandt, Bull. Ac. St.-Petcrsb. II. 1S37, 346 (quotes "Uria brachyptera, 



Kittlitz, MSS."). —Gray, Gen. B. III. 1849, C44. — Cass, in Baird's 11. X. Am. 1858, 917. - 



Baird, Cat. X. Am. B.1S59, no. 734. — Coues, Pr. Philad. Acad. 1868, 66 ; 2d Check List, 1882, 



no. 870. — Ridgw. Norn. X. Am. B. 1881, no. 759. 



II.us. Coasts and islands of the Xorth Pacific, from Japan to Karatscbatka, across the Aleutian 

 chain, and south to Sitka. 



Sr. Char. Adult, breeding-plumage : Head ami neck chiefly black, duller and more fuliginous 

 anteriorly and on tin- throat ; on each side of the occiput, from above the middle of the eyes to the 

 nape, a series of white streaks, blended so as to form a broad stripe, those of opposite sides some- 

 times meeting across the lower part of the occiput ; black of the throat separated from that of the 



Summer plumage. 



nape by a broad intervening space of white, which extends upward on each side of the neck to 

 the auricular region. Lower parts continuous white, the sides and flanks, beneath the wings, sooty 

 black. Upper parts uniform plumbeous, tin- anterior lesser coverts and the remiges darker ; sides 

 of the upper back, between the deep black of the nape and the dull black on the sides of the 

 breast, black, marked with numerous broad white streaks. Bill yellowish, the basal half blackish ; 

 iris brown ; legs and feet dull yellowish (in the skin), the webs dusky. Winter plumage: Simi- 

 lar to the above, but whole throat wdiite (the chin, sometimes upper throat also, plumbeous), the 

 broad white latero-occipital stripes and the streaks on the upper back absent ; the sides and flanks 

 white, the outermost feathers striped with slaty. 



Total length, about 9.50-10.50 inches; extent, 1(1.75-18.25 ; wing, 5.25-5.50; oilmen, .00; 

 tarsus. .!I5-1.(KI; middle toe, without claw, 1.00-1.05. 



