258 DIXOFLAOKI.LAT.K I'EltiniXlluM 



Jdlii: 71 N. H2- K. to 78" N. 53^ K., common at 7;")' N. 19" 



E.; 51' N. 17" W. to 52° N. 54° W. rare. 

 AiifjKst: 72° N. 2(1 K. to 78° N. 17' K,, as a rule nol rare. 

 Srptemhc/': 79" X. 11" K. to 7H° X. 18' K., rare to coininoii ; 



67° N. 3° W. to 61° N. T E., rare; 53° N. 52" W.. rare. 

 Xovi'inhi-i': 52° X. 48° \V., rare. 



Temperature: 8.o, mean of 15 obs., max. 12, min. 3.i (only 

 sucli samples calcnlated as contained this species abundanthO. 

 Salinity: ^M.s:;, mean of 15 obs., max. 35.3o, min. 32.27. 

 Plankton-type. Occurs in the IJerinji- Sea. — r. and N(j. 



PERIDINIUM DIABOLUS Cl. 



(K. Sv. Vet. Akad. llaadl. Vol. XXXU' n. 1 t'l. VII li-. ID, 20.) 



1898 Jamuinj: 11°— 16" iX. 20°— 18° W. 

 March: 21° N. 18° W. 

 May: 41" N. 51° W. 

 J I,,],-: 40°— 44° N. 9°— 10° W. 

 St>])Ti'inb('r: Azores. 

 Mail: 35° N. 75° W. 



Temperature: 14. s to 24. 



Salinity: 36 lo 3().io. 



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

 belongs in the Atlantic to the Styli-i)lankton of the eastern tropical 

 or subtropical region. — N. 



PERIDINIUM DIVERGENS Ehb.' 



(Scin'Tr; I). Peridineen d. I'lankton-exp. PI. Xlll lig. 43.) 



1898 Januarij: 8" iX. 21° W. to 12" N. 19' W.;" 24° N. 40° W. 



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



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

 ribbean Sea; 33° X. 32° W. 



April: 47° N. 40° W.; 59' X. 22' W.; 60° N. 4" W.; i\\' X. 

 23° W. 



' Ostenfeld's, hut not Murray's & Whitting's data used. 



