TROPIDORHYNCHUS ARGENTICEPS, Gould . 
Silvery-crowned Friar-bird. 
Tropidorhynchus argenticeps, Gould in Proc. of Zool. Soc., Part VII. 1839, p. 144. 
For the first knowledge of this new species of Tropidorhynchus, science is indebted to Benjamin Bynoe, Esq., 
Surgeon of Her Majesty’s Surveying ship the Beagle, who, on my visiting Sydney, placed his specimens at 
my disposal ; since my return, other examples have been sent for my use, in this work, hy His Excellency 
Captain Grey, now Governor of South Australia. 
Mr. Bynoe’s specimens. were all obtained during the survey of the north-west coast, a portion of Australia 
the natural productions of which are but little known, and Captain Grey’s during his expedition into the 
interior, from the same coast. 
In size the Silvery-crowned Friar-bird is somewhat inferior to the common species ( Tropidorhynchus 
corniculatus ), from which it may also be readily distinguished by the crown of the head being clothed with 
well-defined, small, lanceolate feathers. Of its habits and economy nothing is known ; but as it is very 
nearly allied to the last-mentioned species, we may reasonably conclude that they are very similar. 
Crown of the head silvery grey ; the remainder of the head naked, and of a blackish brown ; throat and 
all the under surface white ; back, wings and tail brown ; bill and feet blackish brown. 
The figure is of the natural size. 
