2r)S UlNOFLACiKi.LATJv - I'KlilDlNIUM 



Jnlji: 71 N. ;!'J E. lo 7H ,\. h'i^ E., common at Ih' N. 1!) 



Iv; r)r N, 47 W. to r)L' N. h^ W., rare. 

 Angus/: 72 N. 2H M to 7S'" \. 47° E,, as a rule not rare. 

 Si'pti-Dihrr: 7<)' \. 11° E. to in' \. 18° E., rare to common; 



()7 N. 3 W. to ()1 N. 1° E., rare; 58' N. 52^ W., rare. 

 A'orcinbci-: n2 K. 48^ \\'., rare. 



Temperature: 8.a, mean of 15 ohs., max. 12, min. B.i (only 

 such samples calculated as contained this species abundantly). 

 Salinity: Bl..?.-., mean of 15 obs., max. ;i5..iii, min. 32.27. 

 Plankton-type. Occurs in the Bering Sea. — T. and Ng. 



PERIDINIUM DIABOLUS Cl. 



(,K. Sv. Vet. Akad. Hand!. Vol. XXXIV n. 1 PI. VII fig. 19, 20.) 



1898 January: ll'— IH N. 20-— 18' W. 

 March: 21° N. 18' W. 

 May: 11° N. 51° W. 

 Junr: 4-0°— 44° N. 9"— K/ W 

 Si'ptc/uber: Azores. 

 May: 35" N. 75° W. 



Temperature: 14.s to 24. 



Salinity: 36 to 36. io. 



Plankton-type. This species occurs in the Indian Ocean. It 

 belongs in the Atlantic to the Styli-plankton of the eastern tropical 

 or subtropical region. — .S. 



PERIDINIUM DIVERGENS Ehb.^ 



(SchCtt: D. Peridineen d. Plankton-exp. PI. XIII fig. 43.) 



1898 January: 8° N. 21° W. to 12° N, 19° W.; 24° N. 40<» W. 

 February: Caribbean Sea; 21°— 26° N. 74° W. 

 March: 2" N. 24° W. to 18° N. 19^ W.; 7° X. 55° W.; Ca- 

 ribbean Sea; 33' \. 32° W. 

 April: 47° N. 40° W.; 59° N. 22' W.; 60° N. 4° W.; 61' N. 

 23^ W. 



Ostenfeld's, but not Murray's & WhilLing's data used. 



