THE BIRDS OF AUSTRALIA. 
place, yet no bird possesses more interest in connection with the problems 
of species-evolution. I would therefore advocate the use of the following 
nomenclature : — 
Catharacta skua skua (Brunnich) ; 
North Atlantic (breeds Faroe Islands, Shetland Islands, and Iceland), 
Hudson Strait district (c/. A.O.U. Checklist, 3rd ed., p. 33, 1910). 
Catharacta skua anUirctica (Lesson) ; 
Falkland Islands (breeding), (Gough Island). 
Megalestris antarctica falklandica Lonnberg {Schwed. Sud. Exp., Bd. V., 
Lfg. 5, p. 8, 1905) is an absolute synonym of this form. 
Catharacta chilensis (Saunders) ; 
West coast of South America (breeding-place unknown). 
Catharacta lonnbergi lonnhergi Mathews ; 
Australian seas, Chatham Island and all subantarctic islands of 
New Zealand (breeding). 
Catharacta lonnhergi intercedens Mathews ; Kerguelen Island (breeding). 
Catharacta lonnbergi clarkei Mathews ; South Orkneys (breeding). 
Catharacta maccormicki maccormicki (Saunders) ; 
South Victoria Land (breeding). 
Catharacta maccormicki wilsoni Mathews ; 
Weddell Sea (breeding-place unknown). 
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