184 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
variegated with black, the whole of concealed and part of exposed 
portions of the feathers being of the latter color; legs and feet paler 
red. 
Young.—Similar to the winter plumage but white wing-patch 
broken by blackish tips to all the feathers, the secondaries and pri- 
mary coverts with terminal spots of white, rump and under parts 
indistinctly barred with dusky, and pileum showing little of con- 
cealed dusky. 
Downy young.—Plain deep sooty brown, darker on head, paler and 
more grayish on abdomen. 
Adult male.—Wing, 154-174.5 (164.2); tail, 49.5-54 (51.7); ex- 
posed culmen, 31-34 (32.5); tarsus, 30-35 (32.5); middle toe, 36-40 
(38).% 
Adult female.—Wing, 156-171 (163. 5); tail, 47-56 (51.5); exposed 
culmen, 29-38.5 (31.2); tarsus, 31-31.5 (31.2); middle toe, 36-36.5 
(36.2).¢ 
Coasts and islands of northern Atlantic Ocean and eastward to 
White Sea, northern Russia; breeding from southern Greenland and 
Ungava to coast of Maine (islands from Mount Desert eastward), 
islands in Gulf of St. Lawrence (Grand Entry Island), northern Nor- 
way, Shetland Islands, etc.; southward during migration to Con- 
necticut (Stony Creek, Dec. 19, 1895), Rhode Island (off Sakonnet, 
Dec. 30, 1906; off Newport, Nov. 28, 1909), and New Jersey (Egg 
Harbor and Cape May, dates not recorded; Delaware River, near 
Chester, Dec., 1898), in western Europe southward to British Islands 
and northern’ France. 
[Colymbus] grylle Linnajus, Syst. Nat., ed. 10, i, 1758, 180 (s..Sweden); ed. 12 
i, 1766, 220.—GmeELin, Syst. Nat., i, pt. ii, 1789, 584. 
Colymbus grylle O’Ruttiy, Greenland, 1818, 145, pl. 14, fig. 2. 
@ Two specimens. 
Ex- ‘ 
Locality. Wing. | Tail. | posed | Tarsus. Hidale 
iculmen . 
. MALES, 
One adult male from Sweden...............2..2000.002022002 2 eee 174.5 54 34 35 40 
One adult male from Newfoundland...........-.........2.-26+ 154 49.5 31 30 36 
FEMALES 
One adult female from Sweden ............-..2.....2025 Bs ascii 171 56 33.5 31.5 36.5 
One adult female from Canada (Peace Harbor)..............-. 156 47 29 31 36. 
SEX UNKNOWN. 
One adult from Norway (Bergen).............2.2.00esecee aes 151.5 47 32 28.5 35 
