58 CHECK-LIST OF NORTH AMERICAN BIRDS. 



RANGE. Coast of California. Breeds on the Farallon and San 

 Miguel islands. 



Oceanodroma socorroensis C. H. TOWNSEND. Socorro Petrel. [108.1.] 



Oceanodroma socorroensis TOWNSEND, Proc. U. S. Nat. Mus., XIII, 1890, 

 134. (Socorro Island, Lower California.) 



RANGE. San Diego, California, south to islands off west coast 

 of Mexico; breeds on Los Coronados Islands and San Benito Island. 



SUBFAMILY OCEANITINJE. LONG-LEGGED STORM PETRELS. 

 GENUS OCEANITES KEYSERLING & BLASIUS. 



Oceanites KEYSERLING & BLASIUS, Wirbelth. Eur., I, 1840, xciii, 131, 238. 

 Type, by subs, desig., Procellaria wilsonii BONAPARTE = P. oceanica 

 KUHL (Gray, 1841). 



Oceanites oceanicus (KUHL). Wilson's Petrel. [109.] 



Procellaria oceanica KUHL, Beitrage Zool., 1820, 136, pi. 10, fig. 1. 

 (Southern oceans; locality not given.) 



RANGE. South Polar regions north to Labrador and British Isles. 

 Breeds on Antarctic islands in February; occurs off American coast 

 from May to September; accidental on Muskoka Lake, Ontario. 



[GENUS FREGETTA BONAPARTE. 



Fregetta BONAPARTE, Comptes Rendus, XLI, 1855, 1113. Type, by orig. 

 desig., Thalassidroma leucogaster GOULD = Procellaria grallaria VIEIL- 



LOT. 



Fregetta grallaria (VIEILLOT). White-bellied Petrel. [110.] 



Procellaria grallaria VIEILLOT, Nouv. Diet. d'Hist. Nat., XXV, 1817, 418. 

 (Australia.) 



RANGE. Southern oceans north to Bay of Bengal, and Atlantic 

 Ocean to Tropic of Cancer; accidental at St. Marks, Florida.] 



