FOSSIL BIRDS. 425 



Histrionicus histrionicus (Linnaeus). Harlequin Duck. 



Anas histrionica Linnaeus, Syst. Nat., ed. 10, I, 1758, 127. 

 IModern form reported from Pleistocene: Fossil Lake, Oregon. 



Genus POLYSTICTA Eyton. 



Polystida Eyton, Catal. Brit. Birds, 1836, 58. Type, by monotypy, Anas 

 stellcri Pallas. 



Polysticta stelleri (Pallas). Steller's Eider. 



Anas stelleri Pallas, Spic. Zool., I, Fasc. vi, 1769, 35 (pi. v). 

 Modern form reported from Pleistocene: P^ossil Lake, Oregon. 



Genus MELANITTA Boie. 



Melanitta Boie, Isis von Oken [X], Heft v (IMay), 1822, col. 564. Type, 

 by subs, desig.. Anas fusca Linnaeus (Ej-ton, 1838). 



Subgenus PELIONETTA Kaup. 



Pelionetta Kaup, Skizz. Entw.-Gesch. Eur. Thierw., 1829, 107, Type, 

 by monotypy, Anas pcrspicillata Linnaeus. 



Melanitta perspicillata (Linnaeus). Surf Scoter. 



Anas perspicillata Linnaeus, Syst. Nat., ed. 10, I, 1758, 125. 



Modern form reported from Pleistocene: Upper San Pedro formation, San 

 Pedro, California. 



Genus CHENDYTES Miller. 



ChemJytes L. H. Miller, Condor, XXVII, No. 4, July 15, 1925, 145. 

 Type, by monotypy, Chcndytcs lawi L. H. Miller. 



Chendytes lawi Miller. 



Chendytes lawi L. H. Miller, Condor, XXVII, No. 4, July 15, 1925, 145, 

 fig. 40. 



Pleistocene: Upper San Pedro formation, near Santa Monica, and San Pedro, 

 California. 



Subfamily ERISMATURINAE. Ruddy and Masked Ducks. 



Genus ERISMATURA Bonaparte. 



Erismatura Bonaparte, Giornale Arcadico, LII, 1832, 208. Type, by 

 monotypy, Anas rubidiis Wilson. 



