18 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 
The Macquarie Subarea embraces the Macquarie, Camp- 
bell, Auckland, Antipodes, Snares, and Bounty islands. The 
climate is sub-Antarctic, especially in the more southerly 
islands. The following species breed in this subarea: 
Diomedea exulans 
Thalassarche melanophris 
Thalassarche bulleri 
Thalassarche cauta 
Thalassarche culminata 
Pheebetria palpebrata 
Macronectes giganteus 
Pachyptila vittata 
Pterodroma lessoni 
Procellaria zquinoctialis 
Priofinus cinereus 
Puffinus gavia 
Garrodia nereis 
Pelagodroma marina 
Pelecanoides urinatrix 
The South Georgia Subarea comprises the sub-Antarctic 
South Georgia, Falkland, Sandwich, and Bouvet islands. 
Breeding species are: 
Diomedea exulans 
Thalassarche melanophris 
Pheebetria palpebrata 
Macronectes giganteus 
?Petrella capensis 
Pachyptila vittata 
Pagodroma nivea 
Procellaria zquinoctialis 
Oceanites oceanicus 
Garrodia nereis 
?Fregetta melanogaster 
Pelecanoides urinatrix 
The Tristan da Cunha Subarea is restricted to the Tristan 
da Cunha Group and Gough Island, and lies in the zone 
south of the isotherm of 15° C. for January. The following 
are said to breed in this subarea: 
Diomedea exulans 
Thalassarche culminata 
?Thalassarche chlororhynchos 
Pheebetria palpebrata 
Macronectes giganteus 
Pachyptila vittata 
Pterodroma mollis 
Puffinus gravis 
Puffinus obscurus 
Pelagodroma marina 
Pelecanoides urinatrix 
The Mascarene Subarea consists of the Mascarene, Sey- 
chelle, and Chagos archipelagoes. Piterodroma aterrima, 
Puffinus obscurus, and Puffinus chlororhynchus breed within 
its bounds. 
The West Australian Subarea embraces the north, west, 
and south coasts of Australia from the Gulf of Carpentaria 
to Victoria. The following, at least, breed in this subarea: 
Pterodroma macroptera 
Puffinus obscurus 
Puffinus carneipes 
Puffinus tenuirostris 
Puffinus chlororhynchus 
Pelagodroma marina 
The East Australian Subarea is the complement of the 
West Australian, embracing Tasmania and the coasts of Vic- 
oe 
