S34 AVATID^. 



Another specimen in the Turin Museum has the rufous-hrown 

 colour of the head, neck, and sides of body paler, and the whitish 

 of the underparts tinged with ochreous. 



Hah. Southern Brazil, Paraguay, Uruguay, Argentina, and Chili. 



a. S ad. sk. Admiral Bowles[P.]. 



b. (5 ad. St. Chili. Purchased. 

 c-e. cS 2 ad. St. et Chili {T. Bridges). Cuming Coll. 



2 ad. sk. 

 f, (J. 6 ad. et d" Chili. T. Bridges, Esq. [C.]. 



juv. St. 

 h. d' ad. sk. Chili. H. J. Elwes, Esq. 



i, ^. c? ? ad. sk. Central Chili. H. Berkeley James, 



Esq. [P.]. 

 I, m. c? 2 ad. sk. Santiago, Chili (Lei/bold), Salvin-Godman Coll. 



n. 2 ad. sk. Santiago, Chili, Aug. H. J. Elwes, Esq. 



[P-]- 

 0. S juv. sk. Rio Pilmaiquen, Chili, Feb. H. Berkeley James, 



Esq. [P.]. 

 p. (S ad. sk. Uruguay. Alan Peel, Esq. [P.]. 



q, r. (S 2 ad. sk. Monte Video {Johnston). Salvin-Godman Coll. 



44. NYROCA. 



Type. 



Nyroca, Flem. Phil, of Zool. ii. p. 2G0 (1822) N. africana. 



Aythia, Boie, Isis, 1822. p. 564 (nomen nudum) .... N. ferina. 



Aithya, Kaup, Natiirl. Si/st. p. 99 (1829) N. ferina. 



Fuligula, Stv. {nee Steph.) Class. B. ii. p. 368 (1838). . N. ferina. 

 Aethyia, Ac/ass. Nometicl. Zool. Ind. Unw. p. 42 (1846). 



Marila, Rchnh. Av. Syst. Nat. p. viii (1852) N. ferina. 



Aithyia, Bp. Compt. Rend, xliii. p. 651, gen. 50 (1856). 



Aristonetta, Baird, B. N. Atn. p. 793 (1858) N. vallisneria. 



Ilyonetta, Heine, Nomencl. Mus. Hein. Oin. p. 347 

 (1890) ( = Nyroca,i^/em.). 



Baiige. Cosmopolitan. 



Key to the Species. 



a. General plumage grey ; head and neck rufous- 

 chestnut in adult males {Aethyia). 

 a' . Bill moderate, much shorter than middle toe. 

 a". Head and neck chestnut-rufous, without 

 distinct purple gloss ; lower parts finely 

 vermiculated with ashy ; upper mandible 

 (in life) blue only between nostrils and end, 



the basal portion being dusky ferina, p. 335. 



h" . Head and upper half of neck rich chestnut- 

 rufous, glossed with purple ; abdomen 

 white, not vermiculated with dusky ; bill 



pale blue, only the end black aimric'ina, p. 340. 



b'. Bill very long, equal to middle toe ; upper 



part of the head dusky ; abdomen white .... vallisneria, p. 342. 



