252 



niNOKLAGELLAT/E — HISTIONIOIS 



HISTIONEIS PARA Murr. i^i Whitt.i 

 (Frans. Linn. Soc. 2 Ser. Bot. V. part. 9. 1899 PI. XXXII fig. 4.) 



1897 Devember: 2-i^ N. 50'— 51° W. 



1898 January: 32°— 33° N. 34°— 31° W. 

 February: 25°— 27° N. 44°— 41° W. 



Mnrch: 24° N. 41° W. to 29°— 31° N. 45^— i2- W. 



Temperature: 21.8 (one obs.). 

 Salinity: 37.22 (one obs.). 

 Plankton-type: 1). 



HISTIONEIS SPLENDIDUS (Schutt).i 

 {OrnithoccTcus xpcmlidus SchOtt D. Peridineen d. Plankton-exped. PI. V. fig. i'i.) 



1898 February: 31° N. 35° W. to 19" N. 52° W. 

 March: 29°— 31° N. 45°— 42° W. 



April: 27° N. 74° W. 



May: 41° N. 51° W. 



July: 41° N. 58° W. 



September: 41° N. 65° W. 



October: 21° S. 36° W. 



November: 4° N. 30° W.; 34°— 36° N. 10°— 14° W.; Azores. 



December: Canaries; 22°— 25° N. 56—52° W ; 34" N. 38° W. 



1899 January: 35° N. 9°W. 

 February: 32°— 34° N. 47°— 40" W. 

 May: 35° N. 75° W. 



Tempepature: 21.6, mean of 24 obs., max. 27.2, min. 16.8. 

 Salinity: 36.24, mean of 16 obs., max. 37.2i, min. 33. sr. 

 Plankton-type : 1). 



Murray's & Whitting's data used. 



