PACHYCEPHALOPSIS POLIOSOMA, Sharpe. 
Grey Thickhead. 
Pachycephalopsis poliosoma, Sharpe, Journ. Linn. Soc. Zool. vol. xvi. p. 318 ( 1882 ). 
This fine Thickhead was discovered by Mr. A. Goldie in the Tabari district, at the hack of the Astrolabe 
range, in South-eastern New Guinea. Although much resembling the genus Pachycephala in the shape of 
the bill, the present species nevertheless differs in its longer wings and longer tarsi ; and I agree with Count 
Salvadori that, like P. hattamensis, it ought to be generically separated. With the last-named bird it agrees 
entirely in form ; but the simple coloration gives it a very different appearance. 
Nothing was recorded by Mr. Goldie concerning the habits of this species ; but he states that the native 
name is “ Uradaroro.” 
The following is a translation of the original description published by Mr. Sharpe : — 
Above uniform dull ashy grey, the head slightly duller; wing-coverts like the back, quills and tail- 
feathers rather browner ; lores and eyebrows, as well as the ear-coverts, ashy, the feathers before the eye 
and a streak below the latter black ; under surface of body ashy grey, with the lower abdomen and the 
under tail-coverts slightly whitish ; throat whitish brown, the sides washed with ashy ; cheeks whitish, 
lighter than the throat and forming an indistinct moustache ; under wing-coverts and axillaries ashy, quills 
sepia-brown below, edged with pale brown along the inner web. Total length C - 3 inches, culmen 0 8, wing 
4*2, tail 2‘5, tarsus 1*2. 
The figure in the Plate represents this species of the natural size t it has been taken from the typical 
specimen in the British Museum. 
[R. B. S.] 
