4 



it 



ALCIDiE, AUKS. GEN. 323, 324, 325. 



343 



Knob-UUed, or Least AuJc. Very small ; under 7 ; wing 4 or less ; tarsus 

 I ; bill f . No crest, but Avhite hair-like feathers on forehead and often about 

 eyes. Blackish, with 

 more or less white on 

 scapulars ; below white, 

 pure or much varied with 

 dusky ; bill of adult in 

 summer with a littb 

 knob at base. N. Pacific. 



.Phaleris nodirOStris kg. 227. Knob-ljilled Auk : adult. Fig. 228. The same, young. 



AuD. vii, 255 ; pi. 468 ; P. microceros Brandt ; Cass, in Bd., 908 ; >S. micro- 

 ce?'OS-CouES, I. c. 4(). IJria intsiUa Pall ; P. jmsilla Cass, in Bd., 909 ; 6'. 

 pusillus Ell., pi. 68 ; Coues, I. c. 49 (young or winter specimens), pusillus. 



(.^- 



^ 323. Genus PTYCHOEHAMPHUS Brandt. 



■' Aleutian Auk. Blackish-cinereous, paler below, white on breast and 

 l)elly; no long feathers about head; bill conic, acute, about f the head, 

 wrinkled at base, nostrils scaled; 9; wing 5; tarsus 1; bill |, | deep at 

 base, i wide. Pacific Coast to L. Gala. Cass, in Bd., 910; Elliot, pi. 

 69 ; Coues, I. c. 52. Mergidus cassini Gambel aleuticus. 



324. Genus MERGULUS Auctorum. 



Sea Dove, or Bovehie. Glossy blue-black, 

 below from the breast (in winter, and in youn"-, 

 from the bill) white; scapulars white-striped; 

 secondaries white-tipped ; white speck over eye ; 



FIG. 229. -Sea Doye. i^jji ,j|_^^^^ g,^^,^.^^ ^i^^^^^^^ IwgxA. 8J ; wiug 1% ; 



tarsus f ; bill ^, about \ deep or wide at base. N. Atlantic, abundant, S. 

 in winter to New Jersey (to Florida, Maynard). Wils., ix, 94, pi. 74, f. 

 5; NuTT., ii, 531; Aud., vii, 257, pi. 469 ; Cass, in Bd., 918. . alls. 



325. Genus SYNTHLIBOEHAMPHUS Brandt. 



*s* Tarsi much compressed, broadly scutellate in 

 front and on the sides, not shorter than middle toe 

 without its claw ; bill compressed, shorter than head or 

 tarsus ; nostrils broadly oval, reached by feathers. 

 Length 9^-11 ; extent 16^-183^ ; wing 5-5J- ; tail 1| ; bill 

 f-J ; tarsus 1. Head and neck black or blackish, with white stripe over eye 

 and numerous others on nape and side of neck ; upper parts and sides under the 

 wings black or blackish-plumbeous ; other under parts white, from the throat in 

 summer, from the bill in winter, and in j'oung birds. 



Black-tliroated Guillemot. Not crested. White superciliary stripe not 

 running in advance of the e\'e. Bill stout, obtuse, at base ^ or more of the 

 length of culmen, pale, culmeu aud base black. N. Pacific. Uria senicida 

 Pall. Mergulus eirrhocejplialas Vigors. Uria antiqua Aud., vii, 263, pi. 



Fig. 230. Black-throated 

 Guillemot. 



