H()S IMIYCOCHROMACK.!-: — 'JTIK '.IIODRSMIIM 



September: Cape Verde Islands; Madeira; 2(5^ N. oO"" W. to 



9^ N. oa' W.; -KY N. 1)\' W. to :JS^ N. 71= W. and thence 



to 42' N. hi-' W. 

 October: W N. 70- W. to M' N. 74- W.; r)7-— f)!)- N. 27^— 



21 ' W., rare. 

 Xooeiitber: 9" S. H4- W. to the Canaries: Azores to WV N. 



oS W. 

 December: 26^ S. 45° W. to 14 ^. .')'9" W.; Canaries; 2;V N. 



52= W. to ItP N. 58" W.; Caribbean Sea. 

 IS'.HI Jaminrti: :W— :-54= N. 15^—12' W. 

 February: 32° N. 47= W. 

 3/«/rA : 18°— 24° N. 45°— 40= W. 

 .4p/v7: 28°— 32° N. 75° W. 



June: 5°— 7° N. 24°— 25= W.; 15 N. 50 W. to 21= N. 42= W. 

 //^/f/: 2H=— 28° N. H6=— 40° W. 



Temperature: 2L5, mean of 154 obs., max. 28.4, min. 1;>. 



Salinity: 35. ic, mean of 120 obs., max. 38.54, min. 33. 20. 



Plankton-type. Occurs in the Mediterranean (Schroder). The 

 area of distribution is tlie whole tropical and subtropical Atlantic, 

 on tlie Northern hemisphere to the left of a line drawn from the 

 Canaries to Newfoundland. It occurs the wliole year in the warm 

 current north of S. America and in the Sargasso Sea, appears, 

 although sparingly, in May north of 4t)° N., but reaches in August 

 a maximum between 10= — 15° N., Avhere it remains sparingly in 

 October. In the last named month some rare specimens had drifted 

 nearly to 60= N. — 1). 



