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 OCEANITINA. Long-legged Storm Petrels. 



Genus OCEANITES Ketserling & Blasius. 



Oceanites Keysekling & Blasius, Wirbelth. Eur., I, 1840, xciii, 131, 238. 

 Type, by subs, desig., Procellaria wilsonii Bonaparte = P. oceamca 

 KuHL (Gray, 1841). 



Oceanites oceHnicua (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 orlg. 

 desig., Thalassidroma leucogaster Gould = Procellaria graUaria 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.] 



