506 



THE DIVING BIRDS — PYGOPODES. 



curved, or nearly straight, and incliniiiLj backward toward the occiput ; top of liead with a broad 

 white stripe, originating on each side of the crest and extending back to and inchiding the occi- 

 put ; h)ral, orbital, and malar rfgion?;, chin, and upper half of the throat, with orliital and auricular 

 regions, uiiiforni velvety plumbeous, with a truncated lower outline ; remaining lower parts con- 



> 



ui^mm^ 



\^^ 



Summer idumage. 



tinuous white, except along the sides, which are sooty blackish. Upper parts, except as described, 

 plumbeous, the anterior lesser wing-coverts, remiges, and tail dusky. Bill yellowish, the culmen 

 black; iris blackish ; legs and feet dusky yellowish (in the dried skin). Winter plumctfje : Simi- 

 lar to the above, but whole throat white, chin light plumbeous, crest and white stripes of the crown 

 absent, and the sides and flanks white, striped with slate-gray. Doicnij youmj : Above, brownish 



Winter plumage. 



gray, the whole back and rump indistinctly streaked with grayish white ; lower parts entirely 

 pure white, including chin and throat. Bill dusky, legs and feet pale brownish (in dried skins), 

 the w('!)s dusky. 



Total length, about 10.50-11.01) inches; extent, 18.00-18.50; wing, 5.10-5.50; culmen, .70; 

 tarsus, 1.00 ; middle toe, .90-1.00. 



Temminok's Guillemot appears to have been first described, by the distinguished 

 ornithologist whose name it bears, from a Japanese specimen. It has since been 

 collected by Mr. W. Heine, in Commodore Perry's Ex})edition, at Simoda, and also 

 ill Yedo Bay. Dr. Cooper obtained specimens at Port Gamble, Washington Terri- 



