PACHYCEPHALOPSIS FORTIS. 
Grey-throated Thickhead. 
Pachycephala forth, Gadow, Cat. Birds in Brit. Mus. vol. viii. p. 309 (1883). 
We have already had the pleasure of figuring two species of Pachycephalopsis in the present work, and we 
now introduce to our readers a third very interesting species, recently discovered by Mr. A. Goldie during 
his explorations at the back of the Astrolabe range of mountains in South-eastern New Guinea. 
The present species is somewhat allied to P. hattamensis, but is strikingly different, being distinguished 
by the uniform grey throat and breast, the pale yellow under tail-coverts, and the absence of rufous on the 
wings. It resembles the last-named species, however, in its olive-green back and grey head. 
The following is a description of the type specimen in the British Museum : — 
Adult. General colour above olive-greenish ; wing-coverts like the back, the greater and primary-coverts 
dusky, externally edged with olive-green, the bastard-wing feathers grey ; quills dusky brown, externally 
olive-green, browner on the primaries, the inner secondaries entirely like the back ; tail-feathers dull olive- 
brown, greener on the edges and barred with dusky under certain lights ; head and nape slaty grey, as also 
the sides of the neck, ear-coverts, and sides of face ; lores greyish white ; cheeks, throat, and breast pale 
grey, with narrow dusky shaft-streaks to some of the feathers of the fore neck ; abdomen creamy white ; 
sides of body pale brown washed with olive ; thighs ashy washed with olive ; under tail-coverts yellowish white 
washed with olive-yellow; under wing-coverts and axillaries pale olive-yellow; quills dusky below, ashy along 
the edge of the inner web. Total length 6‘6 inches, culmen 0*85, wing 365, tail 2 ‘75, tarsus T05. 
[R. B. S.] 
