12 U.S. NATIONAL MUSEUM BULLETIN 226 



Anas poecilorhyncha haringtoni (Gates) 



Polionetta haringtoni Gates, Jo urn. Bombay Nat. Hist. Soc, vol. 

 17, No. 3, Feb. 15, 1907, p. 558 (Shan States, Burma). 

 Range: A visitor from the North, reported on migration or in winter 

 from the northern plateau (Chiang Rai, Phayao) . 



Anas penelope Linnaeus 



[ilTias] Penelope Linnaeus, Systema naturae, ed. 10, tom. 1, 1758, 

 p. 126 ("in Europse maritimis & paludibiLs" ; type locality 

 restricted to Sweden, apiid Hartert) . 

 Range: A visitor from the North, reported on migration or in 

 winter from the northern plateau (Chiang Mai) . 



Anas querquedula Linnaeus 



[Anas] Querquedula Linnaeus, Systema naturae, ed. 10, tom. 1, 

 1758, p. 126 ("m Europse aquis dvlcibus"; type locality re- 

 stricted to Sweden, apud Hartert) . 

 Range: A visitor from the North, reported on migration or in 

 winter from still waters of the northern plateau and the central plains. 



Anas clypeata Linnaeus 



[^nas] clypeata Linnaeus, Systema naturae, ed. 10, tom. 1, 1758, 

 p. 124 ("m Europae maritimis"; type locality restricted to 

 southern Sweden, apud Hartert). 

 Range: A visitor from the North, reported on migration or in 

 winter from stiU waters of the central plains. 



Genus AYTHYA Bole 



Aythya ferina (Linnaeus) 



[Anas]ferina Linnaeus, Systema naturae, ed. 10, tom. 1, 1758, p. 

 126 ("in Europse maritimis" ; type locality restricted to Sweden, 

 apud Hartert). 

 Range: A visitor from northern Asia, reported on migration or in 

 winter from the northern plateau (Chiang Mai). 



Aythya nyroca (Giildenstadt) 



Anas nyroca Giildenstadt, Novi Comm. Acad. Sci. Imp. Petropoli- 

 anae, vol. 14, pt. 1, 1769, p. 403 ("in rcgionibus Tanaicensibus 

 inter gradum 54 et 55 latitudinis")- 

 Range: A visitor from northwestern Asia, reported on migration or 

 in winter from the northern plateau (Chiang Mai) . 



Aythya baeri (Radde) 



Anas {Fuiigula) Baeri Radde, Reisen im Suden von Gst-Sibirien, 

 band 2, 1863, p. 376, pi. 15 ("Amurland," Russian SFSR). 

 Range: A visitor from northeastern Asia, reported on migration or 

 in winter from the northern plateau and the central plains. 



