l'(i2 DINOFLAUELLAIVE — r'KIIIDIMr.M 



-lO' N. ()7 W.; V:, N, ()1° VV.; 48" N. 41= W ; S. of Ice- 

 land Lo the Kiirfies and fiO'' N. 4 W. 

 1899 JfiiiKarij : (ilT (iibrallai'; rianarics. 



Fi'briiarii: 32 N. 5()' W. 



Ma fell : Azores. 



.l/)r/7: 12 —4k X. is — Ifi W. 



June: 5-— 15 S. 17 -^ r)-- W. 



./»///,■ 11° N. 26 W. to 23' N. 36' W.; area between 38'— 

 40 N. 39—38" W. and 45 N. 31° W. 



Srjirrnihr/-: o(i' N. 3;'> ' W. 



Oruihrr: 56" N. 38 W . 



Temperature: 2(».«, mean of 69 obs., max. 27.:;, min. 8.i. 



Salinity: 35.58, mean of 50 obs., max. 38. .-,i, min. 33. ss. 



Plankton-type. I have found this species in samples from 

 the Red Sea. It enters the Atlantic A\'. of S. Africa, occurs rarely 

 in the Brazil current, in the spring N. of S. America, in the Carib- 

 bean Sea and the Florida Current, but is less abundant in the 

 western than in the eastern Atlantic, where it spreads from the Cape 

 Verde Islands towards the Azores. In May — July it occurred be- 

 tween 10' and 50' N., extended in July to 60 N., in August to Ice- 

 land and in September to E. Greenland. It has been seen only 

 rarely in the northern and southern parts of the Sargasso Sea — N. 



PERIDINIUM HINDMARCHII Mlrr. & A\'hitt.i 

 (Trans Linn. Soc. London 2:nd. Ser. Bot. Vol. V part. 9 PI. XXIX fig. l.i 



1897 iJccrnihrr: 29° N. 3() W., very rare; 24' N. 50—51° W 



Caribbean Sea. 



1898 March: 31"— 39° X. 39—32 W.; Caribbean Sea. 

 April: 22—19' X. 47—60' \V.; 19 —It)- X. 50—56" W. 



Temperature: 23. i, mean of 12 obs., max. 27.3, min. 15. «. 

 Plankton-type: I). 



Murray's A' Whilting's dala used. 



