ALCIDJS — THE AUKS — CICEKONIA. 



507 



tory, and on Slioal-water ])ay. Jii regard to its breeding-habits and its other Sfxjcific 

 peculiarities, we have no iniormation. ])r. Suckley only states in regard to it that 

 it is found in summer at Puget Sound j while l)r. Coo])er pre mmes tliat it has about 

 the same range as the Brachyramphus marmoratus, and so far as he has observed 

 has similar habits. It is said to be common at Ilakodadi in October. 



Genus CICERONIA, Reichenbach. 



Ciceronia, Kkicuenb. Syst. Avium, 1852, p. iii (type, Phaleris viicroceros, Brandt, = Uria pusilla^ 

 Pall.). 



Ciceronia pusilla. 



THE KNOB-BILLED AUK; LEAST AUK. 



Uria pusilla, Pall. Zoog. Rosso- As. II. 1826, 373, pi. 70 (excl. syn. ). 



Phaleris pusilla, Cass. Pr. Ac. Nat. Sci. Pliilad. 1862, 324; iu Baiid's B. N. Am. 1858, 909.— 



Baikd, Cat. N. Am. B. 1859, no. 723. 

 Simorhynchus 2nisillus, Coues, Pr. Ac. Nat. Sci. Philad. 1868, 48, fig. 12, figs. 227, 228; Kt^y, 1872, 



343 ; Check List, 1873, no. 624 ; ed. 2, 1882, no. 861 ; Elliott's Alaska, 1875, 208. 

 Ciceronia pusilla, Ridgw. Nom. N. Am. B. 1881, no. 750. 



Phaleris corniculata, Eschsch. Zool. Atl. IV. 1831, 4, pi. 16 (=suinmur adult). 

 Phaleris microccros, Brandt, Bull. Ac. St. Petersb. II. 1837, 346 (= summer adult). — Cass, in 



Baird's B. N. Am. 1858, 908. — Baiiid, Cat. N. Am. B. 1859, no. 722. 

 Simorhynchus microccros, CouEs, Pr. Philad. Acad. 1868, 46, fig. 11. 



Phaleris pygmwa, Bkandt, Bull. Ac. St. Petersb. II. 1837, 347 (not Alca pygmwa, Gmel. 1788). 

 Phaleris nodirostra, Bonap. Comp. List, 1838, 66 (= summer adult). — AUD. Orn. Biog. V. 1839, 



101, pi. 402 ; B. Am. VII. 1844, pi. 468. 



Hab. Coasts and island.s of the North Pacific, south to Japan and Sitka, north to the Prybilot' 

 Group. 



Sp. Char. Adult, breeding-plumage : Bill very short, the depth and width through the base 

 about e([ual to the length of the culnien, which is decidedly arched ; gonys slightly convex ; top 

 of the cere furnished Avith a small semicircular compressed tubercle. Upper parts almost wholly 

 deep slate-black, inclining to glos.sy black in some specimens ; inner scapulars usually white, fonu- 



>^v 



^M. 



Summer adult. 



Winter adult. 



ing more or less of a longitudinal patch on each side of the back ; inner greater coverts and secon- 

 daries also usually tipped with white. Forehead and lores moiv or less conspicuously ornanientixl 

 with delicate acuminate white feathers, a lew of which, narrower and more thread-like, extend 

 backward in a narrow streak from the rictus acro.ss the cheeks, while a more conspicuous line of 



