THE BIRDS OF AUSTRALIA. 
The nomination and order here adopted will read : 
Order Psittaciformes. 
Family TrichoglossidsB 
Family Opopsittidae . . 
Family Proboscigeridse 
Kakatoeidae 
Subfamily Calyptorhynchinse 
Kakatoeinae 
Family Leptolophidae * 
Loriidae 
Polytelitidae . . 
Platycercidae . . 
Trichoglossus, Eutelipsitta , Psitteuteles, 
Glossopsitta. 
Opopsitta. 
Probosciger. 
Calyptorhynchus, Harrisornis, Zanda , 
(Callocorydon). 
Kakatoe, Lophochroa, Ducorpsius, 
Eolophus, Licmetis. 
Leptolophus. 
Lorius, Geoff royus. 
Polytelis, Northipsitta, Aprosmictus , 
Alisterus. 
Platycercus, Barnardius, Purpurei- 
cephctlus, Psephotus, Northiella, 
Psephotellus, Neopsephotus, Neon- 
anodes, Neophema, Lathamus. 
Melopsittacus, Pezoporus, Geopsittacus. 
It will be obvious that the order here given should be reversed to show 
the evolution of the forms, as it is accepted at the present time that Tricho- 
glossus is the highest form and Pezoporus the lowest as regards Australia. 
I agree with Salvadori and do not pretend to understand the inter- 
relationships and phylogeny of these groups. To indicate the difficulty, 
I might cite the case of Licmetis, one of the white Cockatoos. On account of 
the apparent superficial feature, the elongate bill, the genus was named by 
Wagler as long ago as 1832. Good anatomical distinctions are seen, yet it 
seems an obvious recent offshoot of Ducorpsius, and that the differences have 
been comparatively recently achieved. 
Pezoporidse 
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