LARVAL TRANSPORT BY OCEAN CURRENTS 471 



the same conditions, it also seems likely that several other species 

 of pelagic larvae, though not of the long-distance type, may get 

 some chances to spread from island group to island group inside 

 Oceania. 



Explanation of Fig. 3 



Atlantic Ocean, east to west (1-7) 



1-2, West Africa (0° Lat) to St. Paul Island, about 4500 km or 2430 miles; 

 3, St. Paul Island to Brazil (5° N Lat), about 2670 km or 1450 miles; 4-5, 

 West Africa (5°-10° S Lat) to Fernando Noronha, about 5100 km or 2760 

 miles; 6, Cape Verde Islands to Southern Antilles, about 3670 km or 2000 

 miles; 7, Canary Islands to Southern Antilles, about 5100 km or 2830 miles. 



Atlantic Ocean, west to east (8-9) 



8, Cape Hatteras to the Azores, about 4000 km or 2150 miles; 9, Equatorial 

 countercurrent about 3630 km or 2000 miles. 



Indian Ocean, east to west (10-15) 



10, Ceylonto Maldives, about 1300 km or 750 miles; 11, Maldives to East 

 Africa 2° S Lat), about 2530 km or 1350 miles; 12, North Australia (130° E 

 Long, 12° S Lat) to Cocos Islands, about 2420 km or 1300 miles; 13, Southwest 

 Australia to Cocos Islands, about 2900 km or 1570 miles; 14, Cocos Islands to 

 Saya del Malha Bank, about 4100 km or 2200 miles; 15, Saya del Malha Bank 

 to North Madagascar, about 1080 km or 580 miles. 



Indian Ocean, west to east (16-19) 



16, Somaliland (12° N Lat) to Maldives or west coast of India, about 3300 km 

 or 1780 miles; 17, East Africa (5° S Lat) to Seychelles, about 1650 km or 890 

 miles; 18, Seychelles to Chagos Islands, about 1650 km or 890 miles; 19, 

 Chagos Islands to West Sumatra, about 3000 km or 1600 miles. 



Pacific Ocean, east to west (20-30) 



20, Costa Rica to Clipperton Island, about 2500 km or 1350 miles; 21, Clip- 

 perton Island to North Central Sporades, about 5170 km or 2800 miles; 

 22, North Central Sporades to Keats Bank and Marshall Islands, about 2750 

 km or 1480 miles; 23-24, Peru to Galapagos Islands, about 880 km or 475 

 miles; 25-26, Galapagos Islands to Christmas Island, about 7150 km or 3960 

 miles; 27-28, Christmas Island to Jarvis Island, about 300 km or 160 miles; 

 29-30, Jarvis Island to Howland and Baker Islands, about 1770 km or 955 

 miles. 



Pacific Ocean, west to east (31-36) 



31, Marshall Islands to North Central Sporades, about 2750 km or 1480 miles; 



32, North Central Sporades to Clipperton Island, about 5170 km or 2800 miles; 

 2)3, Clipperton Island to Costa Rica, about 2500 km or 1350 miles; 34, East 

 Japan Islands to Ganges Island, about 1440 km or 780 miles; 35, Ganges 

 Island to Morell Island or Mellish Bank, about 2200 km or 1190 miles; 36, 

 Mellish Bank to California, about 5450 km or 2950 miles. 



Observations: Surface currents only. 



W = northern winter; S = northern summer. 



Miles = nautical miles, i.e., 1852 m each. 



