DONACOLA FLAYIPRYMNA, Gould. 
Yellow-rumped Finch. 
Donacola jlaviprymna, Gould in Proc. of Zool. Soc., part xiii. p. 80 . 
A single specimen, and the only one I have ever seen of this pretty Finch, was presented to me by Benjamin 
Bynoe, Esq., Surgeon, R.N., who procured it on the banks of the Victoria River during the late surveying 
voyage of H.M.S. Beagle. It is very nearly allied to the Donacola castaneothorax, but is specifically distinct 
from that as well as from every other known species of this now numerous tribe of birds. I regret to 
add that nothing whatever is known of its habits or mode of life ; but in these respects it doubtless as 
closely assimilates to its congeners as it does in form. 
Head pale fawn-colour ; back and wings light chestnut-brown ; under surface buff ; upper tail-coverts 
wax-yellow ; under tail-coverts black ; tail brown. 
The figures are of the natural size. 
