403 Messrs. G. M. Mathews and Tom Iredale: 



Genus NETTION. 



Nettion Kaup, Skizz. Entwick.-Gescli. Nat. Syst. 1829, 

 p. 95. 



Type (by monotypy) : A^. crecca (Linne). 



Nettion castaneum (Eyton). Australian Teal. 



Mareca castanea Eyton, Monogr. Anatitljip, 1838, p. 119 : 

 New South Wales. 



Synonyms : — 



A)i(is gracilis Buller, Ibis, 1869, p. 41 : Manawatn, Nortli Island, 



New Zealand. 

 'Nettium, cadaneinn Rnller, Suppl. vol. ii. p. 10. 

 Nettimn gibberifrons Buller, Suppl. vol. ii. p. 10. 



Range : — New Zealand (accidental visitor, few^ occur- 

 rences) ; extralimital. 



Note. — "We have been unable to satisfy ourselves of the 

 occurrence of N. gibberifrons Miiller (Verb. Nat. Gescb, 

 Land- en Volkenk. 1842, p. 159 : Celebes) either in Australia 

 or New Zealand. The only New Zealand specimens avail- 

 able undoubtedly belong to the present species. 



Genus NESONETTA. 



Nesonetta Gray, Genera Birds, vol. iii. 1844, p. G27. 

 Type (by original designation) : N. auckiandica Gray. 



Nesonetta auckiandica Gray. Auckland Islands' Duck. 



Nesonetta auckiandica Gray, A^oy. ' Erebus ' and ' Terror,' 

 Birds, 1845, p. 16 : Auckland Islands. 



Synonym : — 



Nesonettn aiicktandica Buller, Suppl, vol. ii. p. 14. 



Eange : — Auckland Islands (breeding). 



Genus ELASMONETTA. 



Elasnioneffn Salvadori, Cat. Birds Brit. Mus. vol. xxvii. 

 1895, p. 287. 



Tyi-e (l)y original designation) : E. c/ilorofis (Gray). 



