238 DIXOFLAGELLATA^ — DINOPHYSIS 



Jiinr: 57'— 59^ N. 84"— 1-2" W.; NW. and S. of Iceland; NW. 



of tlie Faroes; 60--fU° N. 4°— 14^ W.; 02" N. 2" 80' E.; 



iO"— 44' N. 9-— 10" W. 

 Jiilji: S. of Iceland to about (3o^ N. 1" W.; hi) X. 2' W. to 



the N. of Iiockall and along 58"— 6<) N. to the S. of 



Greenland. 

 Aiifj/isr: N. and S. of Iceland to the Slietlands; W. of Scot- 

 land; Irish Channel. Between S. Iceland and E. (ireenland 



(6(r N. 37" W.); 58 N. 5" E.; N. of Spitsbergen; 55" — 54" 



N. 41"— 47" W. 

 September: N. of Iceland; N. of the Faroes to S. of the Shet- 



lands; 70" N. 20" E.; Denmark's Sound; E. Greenland; from 



Iceland to Iiockall; (52—56° N. 14" W. to 60"— 54" N. 55" 



— i3" W. 

 October: S. Iceland to Scotland, thence to 58" N. 25" W.; 55" 



— 58" N. 29" — 32" W. to S\V. of Gape Farewell, maximum 



at 58" N. 32" W. 

 November: S. Iceland to Scotland; S. of Rockall (56" N. 17" 



\\.) to 54° N. 44° W. (maximum at 53"-56" N. 32"— 36° 



W.): 45" N. 52" W.; 41" N. 69" W. 

 ])rrrmbri-: 49° N. 27^ W. to 47°— 42" N. 44"— 49" W. and 



along the American coast to 41" N. 66" W. 

 1899 May: 66^ N. 10" AV.; 59°— (50" X. 3" W.— 2" E.; 58" N. 2" 



W.; 57" N. 3"— 9" E.; 50" N. 33° W. 

 June: (36°— (i7" N. 1(.)"— 11" E. 

 Jdlij: 57° N. 31° W. to 53° N. 42" W., common. 

 Aufjiist: 72"— 73^ N. 26"— 31^ E.; 55" N. 26" W. to 54" N. 



46° W., not rare. 

 September: 72" N. 19" E. to 80" N. 13° E.; 56" X. 3>0' W. to 



52° N. 55" W., not rare to common. 

 October: 53" N. 31" W. to 54" N. 45" \\'., more or less rare. 

 Xorcmber: 51" N. 28° W., not rare; area between 52° N. 48° 



W., 53" N. 43° W. and 48" N. 46° W., not rare. 



Temperature: 9..-,, mean of 44 obs., max. 12. s, min. 5. 



Salinity: 35 o;;, mean of 44 obs., max. 35.4.5, min. 32. oi. 



Plankton-type. 1 have found this species in a sample from 

 I'uget's Sound. ])i//()/i/ii/sls acuta is a characteristic boreal form, 

 that inhal)its the area between Greenland, S. Iceland and Scotland. 



