ALCID.K — TIIK AUKS — DUACIIYUAMrilUS. 



499 



A> Tursus iniicli Hhortor tliitii thu niiddlu tnu without itH claw. 



1. B. marmoratua. Wiii^,', rj.OO inolics; culiiu-ii, .(itK7<>; lU-ptli of liill nt nnturior end of 



nostril, .24 ; widtli at siiiiu! i)oiiit, .15 ; tiirsu.^, .7(1 ; middli; toe, .i)2-l.(K). Siiiuiinr jilii- 

 imuje: Dusky alnivu, biirrcd with v.isty ; helow, mixed white and I'uliyinous. ll'intu- pln- 

 viiKjc: Above, dusky, interrupted l>y ii wliite nuchal collar ; leathers of hack, eti'., tijijicd 

 with plumbeous. Entire lower parts white. Jluh. Pacitic coast, south to Santa (Jru/, ( 'al. 



2. B. KittlitzL Wing, 5.10-5.80 inches ; culmen, .40-.45 ; depth of bill at anterior end of 



nostril, .20-.22 ; width at same point, .15 ; tarsus, ,(!()-.(i5 ; middle toe, .S5-.!)5. Siinniur 

 plumufie: Above, plumbeous, with indistinct narrow bars of black and very irrej,'idar 

 (mostly longitudinal) spots of creamy bulf ; lower parts chiefly white, the Jugulum and 

 entire sides strongly overlaid by creamy bull', and heavily, but irregulailv, barred and 

 Rpotteil with blackish; other lower parts (except anal region and crissum) more faintly 

 marked with bars (mostly crescentic) of grayish dusky. Winter idmiMije: Above, j)Ium- 

 Ixious, the back and rump indistinctly and narrowly barred with while ; entire side of 

 head (including whole of lores and superciliary region), nariow but distinct imclial collar, 

 and entire lower parts immaculate pure white ; sides of breast crossed by a broad band of 

 grayish slate, narrowing toward niiildle of jugulum. Dill Idack ; iris brown ; feet light 

 brown in dried skin (livid iiurplish gray in lifeV). Ilah. From Northern Japan and 

 Kamtschatka to Unalashka. 



[3? B. brevirostris.^ Wing, •'>-25 inches; culmen, ..50; tarsus, .50. Adult, mmimr jiUi- 

 iruvjc: Above, grayish brown, the head and back .ipotte(l with white ; below, white, waved 

 and spotted with brown ; bill black ; feet yellow, the webs and claws brown, llah. San 

 Bias, W. Mexico.] 

 B< Tarsus etiual to the middle toe, without claw. 



4. B. bypoleucus. Wing, 4.50-5.25 ; culmen, .7O-.80 ; tarsus, .90-.95 ; middle toe, .85. 

 Lining of wings white ; above, plain dark slaty ; below, wholly pure white. Jlab. San 

 Diego to Cape St. Lucas. 



6. B. Craverii. Wing, 4.G0; culmen, .78-.80 ; tarsus, .88-.0O ; middle toe, .80-.8H. Lining 

 of wings smoky gray or slaty. Otherwise sinular to Ii. hijpolcucus. Hub, Lower Cali- 

 fornia. 



BvachjrramphuB marmoratus. 



THE HASBLED GUILLEMOT. 



Cnlymhm marmoratus, GMF.t,. S. N. I. ii. 1788, 583, no. 12. 



limchyramphii^ (ApobapUm) marmoratus, nu.\xi)T, IJiill. Ac. St. Pctcr-sb. IT. 1837, 340, 



Bra^ijrlinmphus marmoratim, GiiAY, Ocn. Ii. III. 1849, C44. — Ca.ss. in liaird's Ii. X. Am. 18.'i8, 



91.5. — Baiud, Cat. N. Am. 15. 1859, no. 732. —CorKs, Pr. Ac. Nat. Sci. I'liilad. ISiiS, <J1 ; 



Key, 1872, 344 ; Check List, 1873, no. 629 ; ed. 2, 1882, no. 866. — Hidgw. Noni. N. Am. B. 



1881, no. 755. 

 Cepphiui perdix, Pai.i,. Zoog. Ros.so-A.s. IL 1826,351, ]>1. 80. 

 Brachyramphua U'rnngdi, Brandt, Bull. Ac. St. Pctersl.. II. 1837, 344. —Cass, in Baird's B. N. 



Am. 1858, 917. —Baiud, Cat. N. Am. B. 1859, no. 733. — Couk.s, Pr. Ac. Nat. Sci. Philad. 



1868, 63. 

 Uria Toionscndii, AuD. Orn. Biog. V. 1839, 251, pi. 430 ; B. Am. oct. od. VII. 1844, pi. 475. 



Had. Coasts and islands of the North Pacific, south, on the American side, to San Diego, Cal. ; 

 breeds at least as far south as Vancouver's Island. 



Sp. Char. Adult, full breed inij-plumafic : Above, dusky, the back, scapulars, rump, and upper 

 tail-coverts barred with rusty, the tii)s of the feathers being of this color. Lower parts fuliginous, 

 more or less mixed with white, the underlying portion of the feathers being of the latter color ; 

 the lower parts never uniforn\ fuliginous, but usually with this color largely predominating. 



m 



' BRACHYnHAMPHUS niiEViRosTius. — Short-billod Ouillpnmt. 



Uria hrrvirostri.1, Vio. Zool. Jimr. IV. 1828, 357 ; Zool. Bocchcy's Voy. 1839, Orn. p. 32 (San 

 Bias). (This is possibly the same as Jl. A'ittlil::i.) 



