A if sir cdi an Birds. 
391 
Ptilotis plumulus. Ptil. lor is nigris: plumis auricular - 
ibus fuscis, infra has penicillin duvbus, uno angustissimo 
et nigra, altero Into et nitidhfaro. 
Crown of the head and all the upper surface olive-yellow, 
approaching to grey on the back; lores black; ear-coverts, 
throat, and under surface yellowish grey, faintly striated with a 
darker tint; behind the ear two tufts, the upper of which is 
narrow and black, the lower more spread over the sides of the 
neck, and of a beautiful yellow; primaries and tail-feathers 
brown, margined with bright olive yellow; irides very dark 
reddish brown; bill black; legs and feet apple green. 
Total length, inches; bill, %; wing, 3J ; tail, ; tarsi, J. 
Bab. Western Australia. 
Hemipodius velox. Bern, gutture, pectore et lateribus 
pallide orenaceo fusee seen ti bu $ • facie , vertice, et plumis 
auricularibus castaneo-rufs. 
Female .—Head, ear-coverts, and all the upper surface, 
chestnut-red; crown of the head with a longitudinal buff mark 
down the centre; feathers of the back, rump, scapularies, and 
sides of the chest, margined with buff, within which a narrow 
line of black running in the same direction ; the feathers of the 
lower part of the back also crossed by several narrow irregular 
bands of black; primaries light brown, margined with buff on 
their internal edges; throat, chest, and flanks sandy buff, 
passing into white on the abdomen; bill horn-colour; irides 
straw white; legs and feet yellowish white. 
Total length, 5i inches; bill, h ; wing 3; tarsi, j. 
Bab. Interior of New South Wales. 
The males are much smaller. 
Hemipodius pyrrothorax. Bern, gutture, pectore et 
lateribus aremceo-rujis , faciei plumis, nee non aurium 
tectricibus, albis, nigro-marginatis. 
Female. —Crown of the head dark brown, with a line of buff 
down the centre; feathers surrounding the eye, ear-coverts, 
and sides of the neck, white, edged with black; back and rump 
dark brown, transversely rayed with bars and freckles of buff 
and black; wings paler, edged with buff, within which is a 
line of black; primaries brown, margined with buff; throat, 
chest, flanks, and under tail-coverts sandy red, passing into white 
on the centre of the abdomen; bill horn-colour; irides straw- 
yellow ; feet yellowish white. 
Total length, 5A inches; bill, ; wing, 3; tarsi, J. 
Bab. Interior of New South Wales. 
Males are much smaller. 
On the 8th December, 1840, Mr. Gould completed the 
exhibition of his fifty new species of Australian birds, and 
characterized the following new species:— 
A new Entomyza, interesting as being the second species of 
