216 BIRDS OF AUSTRALIA. 



face deep brownish grey ; wings and tail dark brown, the 

 feathers margined with greyish brown ; lores, chin, throat, 

 under suface of the shoulder and all the under surface reddish 

 sandy brown, crossed on the breast by a broad iiTegular band 

 of greyish brown ; irides reddish brown ; bill black ; feet 

 blackish brown. 



The female differs from the male in having the throat and 

 under surface greyish white, the chest being crossed by an 

 obscure mark of greyish brown, and with a line down the 

 centre of each feather. 



Sp. 120. PACHYCEPHALA GILBERT.!, Gould. 



Gilbert's Thickhead. 



Packycephala Gilbertii, Gould in Proc. of Zool. Soc, part xii. p. 107. 

 inornata, Gould, lb., part viii. p. 164 (young). 



Pachycephala Gilbertii, 'Gould, Birds of Australia, foL, vol. ii. 

 pi. 71. 



Although the practice of naming species after individuals is a 

 means by which the names of men eminent for their scientific 

 attainments may be perpetuated to after-ages, I have ever 

 questioned its propriety, and have rarely resorted to it ; but 

 in assigning the name of Gilberti to this interesting bird, I 

 feel that I only paid a just compliment to one who most assi- 

 duously assisted me in the laborious investigations required 

 for the production of the ' Birds of Australia,' and who was 

 the discoverer of the species. The specimens transmitted to 

 me by Gilbert are, I believe, all that have yet been procured. 



Although the P. Gilberti is nearly allied to the P. rufo- 

 gularis, it may be readily distinguished by the rufous colouring 

 being confined to the throat, and not ascending upon the 

 forehead and occupying the space between the bill and the 

 eyes as in that species ; it is also a smaller bird in all its 

 admeasurements. 



The Red-throated Thickhead is an inhabitant of the interior 



