SYSTEMATIC REVISION OF THE AUSTRALIAN THORNBILLS 101 
Measurements . — Eleven adult specimens of both sexes: wing, 47-52 
(491); tail, 34-39 (36 4); exposed oilmen, 8-9-5 (8 8); tarsus, 16-18 
(16-8). V ' 
Male . — General colour of upper surface deep olive, tinged greyish, to 
citrine-drab on rump and upper tail-coverts; feathers of forehead with a 
curved subterminal band of cinnamon buff and tipped blackish brown ; lores, 
feathers above and below eyes, and ear-coverts deep olive-buff, with narrow 
blackish brown margins; wings fuscous, lighter on outer margins of quills 
and upper coverts, from whitish on primaries to deep olive on inner second- 
aries and coverts ; tail drab, tinged huffy brown at base, lighter at tip of 
inner webs, and crossed by a broad subterminal band of black which is 
indistinct on two central features ; median portion of under surface deep 
olive-buff merging into dark olive-buff on sides of breast and flanks; feathers 
of chin, throat, and upper breast indistinctly tipped blackish brown ; under 
tail-coverts white, tinged olive-buff; axillaries, under wing-coverts and 
inner margin of wing-quills pale pinkish buff. “Eyes pale buff ; bill dark 
horn ; feet blackish.” 
Female . — Similar to male. 
As no specimens are available from coastal mid-western 
Australia, despite many collecting efforts, it would seem that 
the species is a rarity in that area which is the northern limit 
of its range. From the meagre descriptions of carnarvoni and 
strellyi they appear to be based on examples of typical inorn- 
ate/,, in unworn and worn plumage respectively. Mathews 
(Syst. Avium Aust., p. 605) has since consigned both names 
to the synonymy of submastersi, which, however, in my 
opinion, is a synonym of master si. 
4, Acanthisa inornata inornatcr, 4a, A. i. mastersi. 
