118 Eighth Supplement to the A. O. U. Check-List. vans 
Jan. 
GENUS MERGUS LInN«£vs. 
Mergus Linn. S. N. ed. 10, 1758, 129. Type, by elimina- 
tion, Alergus albellus LINN. 
[131.1.] Mergus albellus Linn. 
Smew. 
Mergus albellus LINN. S. N. ed. 10, 1758, 129. 
[B 614, C—, R—, C—.] 
Groc. Dist.—In summer, northern Europe and Asia; in 
winter, south to the Mediterranean, northern India, China and 
Japan. Accidental in northern North America. (C/ SALVADORI, 
Cat. Bds. Br. Mus. XXVII, 1896, 467, 468.) 
Genus CASARCA BonaParte. 
Casarca Bon. Geogr. & Comp. List, 1838, 56. Type, Anas 
rutila PALL.= Ants casarct LINN. 
[141.1.] Casarea casarca (LINN.). 
Ruddy Sheldrake. 
Anas casarca LINN. S. N. ed. 12, III, App. 1768, 224. 
Casarca casarca ALLEN, Auk, XIII, 1896, 164, 243. 
[B—, C—, R—, C—.] 
Geroc. Dist.— Southern Europe and southern Asia, south to 
northern Africa. Accidental in Greenland, Iceland, and the 
Scandinavian Peninsula. (Cf ALLEN, Auk, Z ¢.) 
[171.1.] Amser fabalis (Larn.). 
Bean Goose. 
Anas fabalis LatH. Gen. Syn. Suppl. I, 1787, 297- 
Anser fabalis Satvap. Cat. Bds. Brit. Mus. XXVIT, 1895, 99. 
[B—, C—, R—, C—.] 
Geroc. Disr.— Northern Asia, eastward into northern Europe ; 
in winter south to southern Europe and northern Africa. Acci- 
dental in Greenland. (Cf SALvApoRI, @. ¢.) 
