42. NETTA. 327 



edges of the upper mandible 

 not bent inwardly; males with 

 a glossy head, females with a 



brown head 47. Clangula, p. 376. 



e'. Central tail-feathers of the 

 male very long and pointed ; 

 edges of the upper mandible 



partly bent inwardly 48. IIarelda, p. 388, 



e'. Head smooth, not distinctly 

 crested ; bill conical, almost 



tapering to a point 49. Cosmonetta, p. 394, 



e'". General plumage of males deep 

 black, of the females greyish 



brown, but not barred 50. OEdemia, p. 399. 



". Some patches of stiff feathers on the 



head of the males. 

 /"', Upper mandible fringed with a 

 soft, skin towards the tip ; lower 

 mandible with apical portion tlat [p. 41G. 



and spatulated 51. Camptol^mus, 



ff'". Upper mandible not fringed with 



a soft skin towards the tip ; bill 



rather narrow and pointed ; tertials 



more or less falcate, especially in 



the males ; females baiTed with 



rufous and black. 



ff^. Edges of upper mandible bent 



inwardly ; lower mandible with 



the apical portion Hat and almost 



spatulated; male aud female with [p. 418. 



a metallic speculum o'J. Hemconetta, 



h\ Edges of upper mandible not beut 

 inwardly. 

 k^. Feathering of forehead contin- 

 uous with that of lores, and ad- 

 vancing quite to the nostrils ; 

 a pad of feathers encircling the 



eyes 53. Arctonetta, p. 422. 



i'. Feathering of forehead sepa- 

 rated from that of lores by the 

 interposition on each side of a 

 more or less extensive naked 

 angle ; no pad of feathers 

 encircling the eyes 54. Somvteria, p. 423. 



42. NETTA. ^^^^ 



Branta, Bote, Isis, 1822, p. 564 (ii£c Scoj}. 1769, 7ieque 



Oken, 1815) N. rufina. 



Netta, Katip, Naiiirl. Syst. p. 102 (1829) N. rufina. 



(Jallichen, Brehm, Isis, 1830, p. 999 ; id. Handb. Naturg. 



Voff. Diiitsc/il. p. 921 (1831) N. rufina. 



Mergoides, JEyt. Cat. Brit. B. p. 57 (1836) N. rutina. 



Banr/e. From the Basin of the Mediterranean to Turkestan and 

 Northern India. 



