( '-^53 ) 



Note. — The difFereuoes relied upou by Sliarpe for tlie separation of his two 

 forms are of no value, as it will be noticed that of the three birds collected by 

 Elsey in the Northern Territory two are referred to one form, the other to the 

 "very distinct" second form. Inasmuch as the Western race is recognisable 

 Gould's name must be accepted for it. 



Genus CERCHITEIS. 



Cenhneis Boiu, his, 182H. p. ',170. 



Type (by monotypyj : C. riipicola (Lichtenstein). 



'•i~r>. Cerchujis cenchroides cenchroides. 



Fakit riii,:liiii/(k.i Vigoi's uiid Uorsfield, Trani. Linn. Hoi:. {Loud.) vol. x». p. 183. 182G : New 

 South Wales. 



Synonym : 



Ccirliiieia iminai-iildliis "Brebm" Bonnparte, Oi«s//. dfii. .\i-. vol. i. p. 27. 1850 : New South Wales. 



Nankeen Kestrel. 



Mathews, Handlist No. 28U (pars). 



Range: Queeusland, New South Wales, Victoria, Tasniania, South Australia. 



3T;!. Cerchneis cenchroides milligani subsp. n. 



Dusky Nankeen Kestrel. 



Mathews, Handlist No. 26u (pars). 



Differs from C. c. cenchroides in its less size and darker c;)loriition above. 



Type : North-West Australia (Parry's Creek), No. 8207. 



Range : North-AVest Australia. 



3T4. Cerchneis cenchroides unicolor. 



Cfvi-hiieis uniroliir Milligan, I'.niii, vol. iv. p. I. I'.M)4 : West Australia (Yalgoo). 



Westralian Nankeen Kestrel. 

 Mathews, Handlist No. 281. 



Although the type is a " sjmrl " the nam'' may be used tor the South-West 

 Australian subspecies. 



itaiige : South-West Australia. 



Family PANDloNIDAE. 

 Genus FANDION. 



I'aiiiUun Savigiiy. Desii: Eijjuil. Hist. Xul. vol. i. p. Gil. 1809. 

 Tvpe (by monotypy) : F. haliaetas (Linne). 



