20 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4tH Ser. 
The Trinidad Subarea is limited to Trinidad Islet (lati- 
tude 20° 30’ S., longitude 29° 15’ W.). “Pterodroma armin- 
joniana”’ (==P. neglecta?) is the only species of Tubinares 
reported as breeding. 
The Hazwauan Subarea includes the Hawaiian, Marcus, 
Volcano, and Bonin islands. It harbors the following breed- 
ing species: 
Diomedea nigripes Puffinus auricularis 
Diomedea immutabilis Puffinus nativitatis 
Bulweria bulweri Puffinus chlororhynchus 
Pterodroma hypoleuca Oceanodroma castro 
Pterodroma phzeopygia Oceanodroma tristrami 
The Revilla Gigedo Subarea is coextensive with the Revilla 
Gigedo Islands. Puffinus auricularis and Puffinus chloro- 
rhynchus breed there. 
The Californian Subarea comprises the fete off the coast of 
Lower California and Southern and Middle California. The 
species known to breed in this subarea are the following: 
Puffinus opisthomelas Oceanodroma leucorhoa 
Halocyptena microsoma Oceanodroma homochroa 
Oceanodroma macrodactyla Oceanodroma melania 
The Southeastern Alaskan Subarea extends along the 
coastal islets from Middle California (latitude 41° N.) to the 
Aleutian Islands. Oceanodroma leucorhoa and Oceanodroma 
furcata are the breeding species. 
The Northern Alaskan Subarea includes the Aleutian 
Islands and the Bering Sea and Arctic Alaskan islands. The 
breeding species are: 
?Diomedea albatrus Oceanodroma leucorhoa 
Fulmarus glacialis Oceanodroma furcata 
The West Indian Subarea consists of the West India and 
Bermuda islands. Pterodroma hasitata, Pterodroma carib- 
bea, and Puffinus obscurus are the breeding species. 
The Madeiran Subarea embraces the North Atlantic Is- 
lands, namely, Cape Verde and Canary archipelagoes, Sal- 
vages, Madeira Group, and Azores. Breeding species are: 
Bulweria bulweri Puffinus obscurus 
Pterodroma mollis Oceanodroma castro 
Puffinus kuhli Pelagodroma marina 
Puffinus puffinus 
