250 



THE VOYAGE OF H.M.S. CHALLENGER. 



be very far from the Antarctic continent ; at Station 70 to the westward of the Azores ; 

 at Stations 296 and 302 to the westward of the southern coast of Chili ; and at 

 Station 106 to the east of the IsLand of St Paul. In no case is the distance g-reater than 

 six hundred miles, but it is difficult with this range from shores to draw the outline of 

 any land in such a way that the great continental masses will not be connected in several 

 places, or at any rate will only leave comparatively restricted oceanic areas which would 

 not fall within the lines. Such an area would be found in the North Atlantic in the 

 rectangle formed Ijy the Bermudas, Sombrero, Cape Verde Islands, and the Azores. A 

 smaller area in the South Atlantic, limited by the eastern coast of South America, Ascen- 

 sion, St Helena, Tristan da Cunha, and the Falkland Islands ; another in the central 

 part of the Indian Ocean ; a smaller area to the south-west of Australia towards the 

 Antarctic circle ; and two areas in the Pacific, one extending from north-west to south- 

 east from the 20° of northern latitude, and about the same latitude south, and one ex- 

 tending from east to west, south of latitude 30° S. towards the Antarctic circle — and 

 an elongated area in the northern part of the Pacific which may perhaps be considered 

 only as an area of the fii'st-mentioued district. 



In the accompanjdng geographical lists the species collected Ijy the Challenger and 

 already known from the same districts are marked x ; those previously known but found in 

 the district for the first time by the Challenger are marked ©, and the species discovered 

 by the Challenger are marked *. 



Northern Chili — Rio La Plata. 



