BREEDING PLACES OF THE EEL SCHMIDT 



291 



Sizes of ccl larvcB {Anguilla vulgaris) at stations from east to west, lat. 35' 

 N.; Margrethe, September, 1913 



Longitude 



29° W. 

 45° W. 

 56° W. 



Station No. and date 



1013, 24/8 

 1020, 11/9 

 1030, 1/10 



Length in mm. 



65, 63, 59. 

 55, 53, 50. 

 40, 36, 35. 



40°. Lat. N. 

 Stat. 1027, 26/9 



28' Lat. N. 

 Stat. 1040, 20/10 



25° Lat. N. 

 Stat. 1037-38, 13/10. 



Average 



41-1 



Pig. 4. 



36-7 

 -European eel (AngtUlla vulgaris) 



32-1 



Siaes of larvse at stations from North to South, western Atlantic between 50" and 60* 



long. W. ; Margrethe, October, 1913. 



It will be seen from the above measurements that the sizes of the 

 larvae decrease from east to west and from north to south. A good 

 general idea may also be gained by marking off the Margrethe's 

 hauls on a chart of the North Atlantic, and drawing a line from 

 Newfoundland in a southeasterly direction, toward Cape Verde. It 

 will then be seen that, west of this line, no larvae over 5 cm. in 

 length were taken, whereas most of those taken east of this line were 

 5 cm. or more, and none less than 4 cm. 



It had now been shown, by systematic investigation across the 

 Atlantic Ocean, that the larvse of the European eel increase in num- 



