APPENDIX. 
P. adelaidce and suggests the possibility that adelaidce is more nearly related 
to flaveolus than to elegans , of which it is made a subspecies in Mr. Mathews 
1913 “ List.” 
On comparing the Fleurieu skins with those in Capt. White s, the 
S.A. Museum, and Mr. Parsons’ collections, I find that while no skins of 
adelaidce show nearly as much red as the highly coloured skin described, 
several skins exhibit nearly as much as the less brightly coloured skins from 
Second Valley, two of these highly coloured skins in Capt. White s collection 
came from Mt. Compass, a place distinctly within the range assigned to the 
new bird. The examination of a large number of skins establishes the fact 
that exceptionally bright P. adelaidce , although rarely, do occur throughout 
the Adelaide Hills, that could not be specifically separated from the second- 
class skins of the Fleurieu birds, but in the best the latter stands out as very 
distinct in the brilliancy and extent of the scarlet coloration. 
We therefore establish the fact that skins exist that, when carefully 
selected and placed together, will show a gradual transition from the 
brilliantly scarlet bird of Second Valley to the more sombre green-backed 
and more or less green-rumped form so common in the Adelaide Hills. 
But on carrying this investigation further I find that intermediate forms 
between P. adelaidce and P. flaveolus are not only not rare but there is every 
reason to believe that the substitution of pale yellowish-green on the back 
and almost yellow on the under-side, as occurs in typical P. flaveolus , for the 
scarlet and more sombre green of P. adelaidce, largely corresponds with the 
decreasing rainfall. 
My investigations lead me to the conclusion that fleurieuensis , adelaidce 
and flaveolus are all one species. The types of each race are certainly widely 
different, but undoubtedly intermediates exist, making one doubt the 
advisability of referring to any of them as other than varieties \of the one 
dominant form. 
The following notes on some of the skins examined should be of interest : — 
Platycercus flaveolus Gould. Of two adult birds shot out of the same flock 
at Wirrabara, September, 1916 — 
(1) Shows red above beak, slight red wash over crown, upper-side pale 
yellowish-green and a considerable amount of red distributed 
over the general yellowish ground colour of the under-side. 
(2) Also red fore-head, but the reddish-orange extends over the crown. 
Upper tail-coverts, outer ones broadly fringed with red and some 
of the scapulars showing red. Under-side, breast and tail-coverts 
bright red with some yellow distributed throughout. Both were 
adult males. 
xvii. 
