64 
PACHYCEPHALIN.®. 
spots of black on the larger end; the latter of which are easily 
removed by wetting them. Length 1*36 x 0-96 inch. 
This species breeds during the months of September, October, 
and November. 
I lab Tasmania. (Ramsay.) 
Sub-Family PACHYCEPH ALINiE. 
Genus PACHYCEPHALA, Sivainson. 
PACHYCEPHALA GUTTURALIS, Latham. 
White-throated Thickhead. 
Gould, Handbk. lids. Aust., Vol. i., sp. 113, p. 207. 
The nest of this species is an open one, and usually composed 
of twigs and roots, and lined with grass, but differs according to 
the locality in which it is found ; in Gippsland the nests are built 
with the fibrous roots of the Dicksonia anlarctica, in the dead 
drooping fronds of which they are artfully concealed, at other 
times they are composed wholly of the long thin leaves of the 
Casuarina, and placed in some upright fork of a tree about six 
feet from the ground. The eggs are subject to considerable 
variation both in the ground colour and their markings, the most 
usual form being of a yellow or brownish-buff, thickly marked with 
freckles of dark umber and blackish-brown, with a few obsolete 
blotches and spots of lilac, particulary towards the thicker end, 
where they become confluent and form an irregular zone. Length 
(A) 0-92 x 0-67 inch ; (B) 0'88 x 0-67 inch ; (C) 0 95 x0-68inch. 
While collecting at Heathcote, on the Ulawarra Line, in 
company with Dr. Hurst on the 29th of October, in 1886, a nest 
was taken, containing two eggs of this species, the ground colour 
of which is of a deep yellowish-buff; one specimen (a) has a broad 
band of dark umber-brown blotches round the centre of the egg, 
the other (b) has tivo distinct zones, but narrower than in (a), of 
