97 [Vol. xxvii. 



ACANTHIZA ALBIVENTRIS HAMILTONI, Subsp. 11. 



Adult. Differs from typical A. albiventris, North, in having 

 the upper tail-coverts less rufous and the under surface 

 darker, especially on the under tail-coverts. It is also 

 slightly smaller. Culmen 11 mm.; wing 51; tail 45; 

 tarsus 20. 



Hab. New South Wales. 



Type. Coll. G. M. Mathews. 



ACANTHIZA IREDALEI, Sp. U. 



Adult. General colour above ash-brown, washed with olive 

 on the back, especially on the rump ; upper tail-coverts 

 buff ; forehead dark brown, each feather with a broad white 

 tip ; ear-coverts and cheeks whitish-buff ; lores whitish ; 

 primaries brown, edged with light grey ; greater wing-coverts 

 brown with paler edgings; lesser and median coverts brown; 

 tail-feathers blackish-brown with buff-coloured tips, in- 

 creasing in size towards the middle pair, all except the 

 median pair with a white spot at the tip of the inner web ; 

 throat whitish; neck and upper breast buff tipped with 

 brown ; remainder of the under surface yellowish-buff. Bill 

 and feet black ; iris buff. 



Total length 90 mm. ; culmen 10 ; wing 48 ; tail 36 ; 

 tarsus 18. 



Hab. Lake Way, West Australia. 



Type No. 4007. Coll. G. M. Mathews. 



Obs. The bird called Acanthiza tenuirostris, Zeitz, must 

 in future be known as 



Acanthiza morgani, mihi, 

 the former name having been used by Lafresnaye in 18A2 

 (c/. Hev. Zool. p. 241). 



On behalf of Mr. Tom Iredale, Mr. Ogilvie-Grant 

 forwarded the description of a new subspecies of Cinclo- 

 ramphus from West Australia. Mr. Iredale described it 

 as follows : — 



CiNCLORAMPHUS RUFESCENS MATHEWSI, Subsp. n. 



Adult male. Differs from C. r. rufescens, Vig. & Horsf., 

 in being much darker above, and in having a shorter bill and 

 longer wing. 



