ORDER ANSERES. 1 19 



[B 592, C 504, R 617, C 724.] 



HAB. Nearly all of North America, breeding from the Northwest- 

 ern States northward to Alaska. 



SUBGENUS FULIGULA STEPHENS. 



Fitligula STEPHENS, Gen. Zool. XII. pt. ii. 1824, 187. Type, by 

 elimination, Anas fitligula LINN. 



148. Aythya marila nearctica STEJN. 



American Scaup Duck. 



Aythya marila nearctica STEJN. Orn. Expl. Kamtsch. 1885, 161. 



[B 588, C 500, R 614, C 720.] 

 HAB. North America, breeding far north. 



149. Aythya affinis (YT.). 



Lesser Scaup Duck. 



Fuligula affinis EYT. Mon. Anat. 1838, 157. 



Aythya affinis STEJN. Orn. Expl. Kamtsch. 1885, 161. 



[B 589, C 501, R 615, C 721.] 



HAB. North America in general, breeding chiefly north of the 

 United States, migrating south to Guatemala and the West Indies. 



150. Aythya collaris (DONOV.). 



Ring-necked Duck. 



Anas collaris DONOV. Br. Birds, VI. 1809, pi. 147. 



Aythya collaris RIDGW. Pr. U. S. Nat. Mus. VIII. 1885, 356. 



[B 590, C 502, R 616, C 722.] 



HAB. North America, breeding far north and migrating south to 

 Guatemala and the West Indies. 



GENUS GLAUCIONETTA STEJNEGER. 



Glaucionetta STEJN. Pr. U. S. Nat. Mus. VIII. 1885, 409. Type, 

 Anas clangula LINN. 



