ANATID.E. CXXXVI. 233 



357. CHARITONETTA Stejneger. (^apis, grace; vrjrra, duck.) 



706. C. albeola(L.). DIPPER. BUFFLE-HEAD. BUTTER-BALL. 

 SPIRIT DUCK. $ with head very puffy and iridescent; no white 

 before eye but a large white ear patch ; wing coverts and second- 

 aries mostly white. L. 16. W. 7. 9 smaller, dark gray, the 

 head scarcely puffy, with white behind eye. N. Am., abundant; 

 an expert diver. (Lat., whitish.) 



358. CLANGULA Leach. (Lat., clangor, a noise.) 



707. C. hyemalis (L.). SOUTH-SOUTHERLY. OLD SQUAW. 

 LONG-TAILED DUCK. Blackish and whitish ; head, neck and lower 

 parts mostly white in winter; a patch of gray on head; breast 

 brownish black ; bill black and orange ; tail very long ; 9 quite 

 different, mostly grayish brown, with short tail. L. 20 W. 9. 

 T. 3(9) to 9 (<). Northern, S. in winter; said to be melodious. 

 (Eu.) 



359. HISTRIONICTJS Lesson. (From Lat., histrio, harlequin.) 



708. H. histrionicus (L.). HARLEQUIN DUCK. " LORDS AND 

 LADIES." leaden bluish, much varied with black, white, and 

 chestnut ; a white patch before eye ; speculum violet purple ; 9 

 dark brown, with gray, etc.; a white spot before eye and one behind 

 ear; bill very short. L. 17. W. 8. T. 4. B. 1^. Atlantic, 

 S. toN. Y. (Ew.) 



360. CAMPTOLAIMUS Gray. (Kapnros, flexible ; \aip6s, throat.) 



709. C. labradorius (Gmelin). LABRADOR DUCK. $ head, 

 neck, chest, and wings white; rest of body with ring about neck 

 and strip on crown black; 9 chiefly grayish. L. 24. W. 9. N. 

 AtL, very rare, or perhaps extinct. 



361. SOMATERIA Leach. EIDER DUCKS. 



(o-oi/ua, body; eptov, wool.) 



a. Frontal processes long, acute, clubbed, extending in line with culmen on 

 each side of forehead; feathers on side of bill advancing to below nos- 

 tril; (f with scapulars white; top of head black; no V-mark on chin. 

 (Somateria.) 



710. S. dresseri Sharpe. AMERICAN EIDER DUCK. in 

 breeding dress white; under parts, rump, quills, and crown patch 

 black; 9 reddish brown, streaked; angle on side of forehead 

 broad and rounded. L. 24. W. 12. T. 4. Arctic Am.; S. to 

 Maine in winter. (Eu.) (To H. E. Dresser, an Eng. Orn.) 



aa. Frontal processes broad, squarish, nearly vertical, out of line of culmen; 

 feathers on side of bill not reaching nostrils. (Erionetta Coues.) 



711. S. spectabilis (L.). KING EIDER. $ chiefly black ; neck, 

 breast, etc., white; a black V-shaped mark on chin; 9 brownish, 



