THE BIRDS OE AUSTRALIA. 
Acanthiza pusilla samudi Mathews, Austral At. Rec., Vol. II., pt. 4, p. 76, Dec. 29, 1913 : 
Myponga, South Australia. 
Acanthiza ewingi ewingi Mathews, List Birds Austr., p. 217, 1913. 
Acanthiza ewingi rufifrons, Mathews, ib. 
Acanthiza pusilla jayi Mathews, Austral Av. Rec., Vol. II., pt. 5, p. 98, Sept. 24, 1914 • 
Jay Waterhole, MacDonnell Ranges, Central Australia. 
Acanthiza albiventris albiventris Mathews, Emu, Vol. XVI., p. 34, 1916. 
Acanthiza albiventris venus Mathews, ib. 
Acanthiza albiventris hamiltoni Mathews, ib. 
Acanthiza albiventris consobrina Mathews, ib. p. 35. 
Acanthiza albiventris gayi ( —jayi ) Mathews, ib. 
Acanthiza albiventris whitlochi Mathews, ib. 
Acanthiza albiventris tanami Mathews, ib. 
Acanthiza pusilla peroni Mathews, Bull. Brit. Omith. Club, Vol. 39, p. 23, Nov. 30th, 1918 : 
Peron Peninsula, W.A. 
Acanthiza pusilla bunya Mathews, ib., Vol. XL., p. 105, March 31st, 1920 : Bunya Mts., 
Queensland. 
Acanthiza pusilla nullarborensis H. L. White, Emu, Vol. XXI, pt. 3, p. 164, Jan. 14th, 
1922 : Zanthus, Nullarbor Plains, east of West Australia. 
Distribution. Australia generally, extreme North excepted, limit of range northward 
in West appears to be Tanami, Northern Territory and limit in east Bellenden Ker 
Range, North Queensland. 
Adult male. General colour of the upper-surface mouse-brown including the top of the 
head, hind-neck, back and wings ; inner webs of flight-quills dark brown fringed 
with white ; rump and upper tail-coverts chestnut ; tail smoke-brown at the 
base with a blackish broad subterminal band and smoke-grey or whitish tips to 
the feathers ; fore-part of head rust-brown speckled with whitish ; sides of neck 
and sides of face grey with white specklings on the latter ; chin, throat and breast 
whitish with blackish centres to the feathers ; sides of body, thighs, abdomen, 
and under tail-coverts dull fawn colour ; under wing-coverts, axillaries, and inner 
edges of quills below whitish, remainder of quill-lining pale brown ; lower aspect 
of tail blackish-brown with whitish tips to the feathers. Bill, legs and feet dark 
brown. Eyes red. Total length 110 mm. ; culmen 8, wing 55, tail 46, tarsus 21. 
Figured. Collected near Cobbora, New South Wales, on the 16th of May, 1914, 
and is the type of Acanthiza pusilla cobborensis (pi. 447, middle bottom figure). 
Adult male. General colour of the upper-surface mouse-brown including the top of the 
head, back, upper wing-coverts, and outer aspect of wings ; outer edges of primaries 
greyish-white, inner webs hair-brown fringed with white ; upper tail-coverts dull 
chestnut ; tail smoke-brown, blackish subterminally and tipped with smoke- 
grey and white ; rictal bristles scarcely perceptible ; the feathers on the fore-part 
of the head centred with whitish which gives a scalloped appearance ; sides of face 
similar ; throat and fore-neck greyish-white with dark centres to the feathers ; 
breast, abdomen, sides of the body, and under tail-coverts buffy-white ; axillaries 
under wing-coverts, and inner edges of quills below pale buffy-white, remainder 
of quill-lining dark hair-brown ; lower aspect of tail similar to its upper-surface, but 
rather paler. Total length 98 mm. ; culmen 8, wing 53, tail 42, tarsus 24. Figured. 
Collected at Leigh’s Creek, South Australia, on the 16th of September, 1910, and 
is the type of Acanthiza pusilla consobrina (pi. 447, top figure). 
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