284 THALASSIDKOMID^. 



Oceanites oceanicus. Wilson's Petkel, 



Procellaria ooeanica KuU, Beitr. Zool. i. 1820, p. 136 : 

 South Atlantic. 



Oceanites oceanicus {Kulil) ; B. O. U. List, 1st ed. 1883, p. 197 ; 

 Salvin, Cat. Birds B. M. xxv. 1896, p. 358; Saunders, 

 Manual, 2nd ed. 1899, p. 733. 



Ocean?cws= of the open sea, ioxeavos. 



Distribution in the British Islands. — A Rare Visitor. It 

 was observed in abundance off Land's End in May 1838. 

 Since that date about nine authentic examples have been 

 obtained in England, one in Jura, Inner Hebrides, and two 

 in Ireland. 



General Distoihution. — Wilson's Petrel breeds in the south 

 Polar regions, including Kerguelen, South Shetlands, South 

 Orkneys, and Cape Adare, migrating northwards at the 

 approach of winter. It is very widely distributed and has 

 been found in all seas except the north Pacific. 



Genus PELAGODROMA Eeichenhach, Av. Syst. Nat. 1850, 



p. iv. 



Type : P. marina (Lath.). 



Pela5iodroma=one tliat runs on the sea, from 7rbXayos=the sea, and 

 ^pa/j6lv=to run. 



Pelagodroma marina. Frigate-Petrel. 



Procellaria marina Latham, Ind. Orn. ii. 1790, p. 826 : 

 South Atlantic. 



Pelagodroma marina {LdtJi.) ; Salvin, Cat. Birds B. M. xxv. 

 1896, p. 362 ; Saunders, Manual, 2nd ed. 1899, p. 735. 

 Jfarina— belonging to the sea. 



Distribution in the British Islands. — A Rare Visitor ; it has 

 occurred twice : — Walney Island, Lancashire, Nov. 1890 ; 

 Culonsay, Inner Hebrides, Jan. 1897. 



