REVISION OF THE GENUS MALURUS. 
Malurus ( Malurus ) amabilis Gould. 
There is no apparent reason for including M. dulcis as a 
race of amabilis. Of the chestnut-shouldered group, only 
amabilis is found in Cape York Peninsula, where it appears to 
be restricted to the east coast, except in the extreme north. 
The nearest locality from which dulcis has been recorded is 
King River, Northern Territory, about 800 miles to the west ; 
the intervening country, south of the Gulf of Carpentaria, forms 
part of the range of M. lamberti mastersi. Two males and one 
female in the H. L. White Collection, collected at Borroloola 
and identified by Mathews as dulcis, were recorded as such and 
the eggs were described under that name by H. L. White 
[Emu, 14, p. 157, 1915). The skins, however, are plainly 
referable to mastersi. 
Malurus (M.) amabilis amabilis Gould. 
Malurus amabilis Gould, Proc. Zool. Soc., 1850, p. 277 ; Cape York, 
North Queensland. 
Malurus hypoleucus Gould, Annals Mag. Nat. Hist., 19, p. 369, 1867 ; 
Cape York, North Queensland. 
Range. — From Cape York south to about Cooktown, east coast of Cape 
York Peninsula, North Queensland. 
Specimens examined. — 19 from the following localities — Cape York, 
Somerset, Lockerbie, Piara, Watson River, and Claudie River, N. Queensland. 
M easurements. — 
Wing Tail Exposed Culmen Tarsus 
14 males .. 50-53(51-9) 49-62(57-8) 10-10-5 (10-1) 21-22(21-2) 
5 females . . 49-52 (50-4) 51-63 (56-4) 9-10-5 (10) 20-5-21 (20-8) 
Male. — Forehead to nape, ear-coverts and feathers around eye amparo 
blue, inclining to salvia blue on forehead ; lores, a band on back and sides of 
neck and lower back black ; upper back pale violet-blue ; scapulars chestnut ; 
wing quills except innermost secondaries fuscous-black, outer margins much 
lighter, those of primaries almost white, the whole suffused with varying 
shades of blue ; lesser and median wing coverts mostly black margined bluish- 
gray, the outermost mottled with blue-violet ; greater coverts and innermost 
secondaries fuscous, margins tawny ; tail and upper tail-coverts violet-blue (1), 
central feathers narrowly, remainder broadly tipped white which continues 
down outer web of outermost feathers ; chin, throat and breast black, a few 
feathers on sides of breast tipped blue-violet ; abdomen white, faintly tinged 
buff on flanks and under tail-coverts ; axillaries, under wing-coverts and inner 
margins of wing-quills white, faintly tinged buff. “Bill black ; eyes brown ; 
feet brownish.’ 
Female. — Upper surface dark tyrian blue, a greenish tinge on forehead 
and crown ; ear coverts light cerulean blue ; lores and feathers around eye 
white ; scapulars hair-brown tinged blue ; wing-quills fuscous, upper wing- 
coverts hair-brown, those near margin of wing tinged blue and blue-violet ; 
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