DINOFLAGELLATyK — STEINIELLA 279 



September: 4^7° N. 9" W. 

 1899 January: 29° N. 16° W. 



Temperature: 16.s to 21. o. 



Salinity: 35.75 to 36.3.- 



Plankton-type. Found at Naples (Schroder) N. ?. 



STEINIELLA MITRA Schutt. 



(D. Peridineen d. Plankton-exped. PI. VII. fig. 27|. 



1897 Beeember: 12 — l(r N. 50°— 48" W 



1898 January: 29° N. 74- W. 

 February: 26°— 34" N. 74' W. 



Mareh: 11° N. 19" W.; 7°— 9- N. 55—59" W.; 32"— H7° N. 



74" W. 

 April: 12- N. 51" W. 



May: 11°— 13° N. 52" -51° W.; 26° N. 52' W. 

 July: 39' N. 23° ^^^; 33° N. 74- W. 

 Auyust: 42° X. 50" W. 

 September: Azores; 38' N. 74' W 

 Xovember: 29" N. 43' W.; 36° N. 14' W. 

 Deeember: 18" N. ti7" W'.; Azores. 



1899 January: 29' N. 16° W.; 33° N. 15° W 

 February: 34° N. 4<.)° W. 



June: 18' N. 47° W. 



Temperature: 22.2, mean of 27 obs., max. 27, min. 9.is. 



Salinity: 35.82, max. 37. u:-,, min. 33.i'o. 



Plankton-type. This species appears rarely in the Cape 

 Verde region, follows the P^quatorial Current to the north of S. 

 America, enters the Caribbean Sea and the Florida Current, in July 

 — August to about 40° N., spreads thence towards the Azores and 

 reaches the Canaries in the winter. It occurs in the Mediterranean. 

 — D. 



