110 SYSTEMATIC REVISION OF THE AUSTRALIAN THORNBILLS 
chin and upper throat chamois to cream-buff, merging into citron yellow 
of remainder of ventral surface and under tail-coverts, with flanks strontian 
yellow and sides of breast tinged olive-citrine; axillaries and under wing- 
coverts white, tipped pale yellow; inner margins of wing-quills white. “Eyes 
yellowish white; bill dark brown ; feet brownish black.” 
Female. — Similar to male. 
Tlie type of belltrees and other specimens from Scone are 
in unworn plumage, and therefore slightly brighter in coloura- 
tion than those from south Queensland to the north, and 
Sydney, (the type locality) in the south. Mathews has con- 
signed burtoni to synonymy, and the type of dorotheae is 
typical nana. 
Acanthiza nana flava H. L. White. 
Acanthisa nana flava H. L. White, Emu, xxii, 1922, p. 97 ; Herberton, 
Queensland. 
Range . — From about Cairns to south of Cardwell, north-eastern Queens- 
land. 
Specimens Examined. — Type and paratype from Ravenshoe. 
Measurements. — One male, one female respectively: wing, 52, 48; tail, 
41, 38; exposed culmen, 8, 8; tarsus, 15, 15. 
Subspecific Characters . — Differs from all other races of nana in its richer, 
much brighter colouration ; nearest to typical nana and markedly different 
from modesta and mathewsi. Dorsal surface dark citrine to citrine ; chin and 
throat antimony yellow merging into strontian yellow of remainder of ventral 
surface ; axillaries citron yellow with dusky bases. 
In describing this form from two specimens, probably the 
only two in an Australian collection, doubtless H. L. White 
was influenced by the known distinction in the fauna of the 
range given. The difference in colouration is striking and 
A. n. flava appears well worthy of recognition. 
Acanthiza nana mathewsi Hartert. 
Acanthisa nana mathewsi Hartert, Bull. Brit. Ornith. Club, xxv, 1910, 
p. 82; Springvale, Victoria. 
Range. — From south of Sydney, New South Wales, south and west to 
north of Adelaide, South Australia. 
Specimens Examined. — Twelve from the following localities: Victoria: 
Rosedale, Springvale (paratype of mathewsi), Raywood, You Yangs. South 
Australia : Grange, Sandy Creek, Laura. 
Measurements . — Eleven specimens of both sexes: wing, 48-52 (49 7); 
tail, 38-42 (38-6); exposed culmen, 8-8 5 (8 1); tarsus 16-17 (16 7). 
Subspecific Characters . — Resembling A. n. modesta, but darker and much 
duller in colouration than any other race. Upper surface saccardo’s olive ; chin 
and throat pinkish buff to cinnamon buff, extending on to breast and becoming 
dull citrine on lower under surface. 
