DIATOMACE.K— .NITZSCHIA HB5 



Temperature: 25.9 and 27.3 

 Salinity: 3H.oi, one obs. 



Plankton-type. Noted from Japan and the Gulf of Bengal. 

 Xt. 



NITZSCHIA PUNGENS VAR. ATLANTICA Cl. 



;A Treatise mi the Phyto-plaiikton PI. II fig, 24.) 



t85)i» April: IS' N. <)° W. 



Temperature: 12.i. 

 Salinity: 35.6s. 



Plankton-type : Noted from ( lorufla and the Red Sea. Leii- 

 MERMANX mentions it from the Pacillc. — N. 



NITZSCHIA SERIATA Cl.' 



(Vega expeditiouens Vetenskapl. iakttagelser PI. XXXVIII iig. 75 — S.fraudalcntn 

 Cl.. Fifteentli annual report of the Fishery Board for Scotland, for 1896, pag. 300 



fig. 11, included.) 



189S March: Azores, rare; \l° N. 21° W.; iH^ N. W' W. 



A])ril: Azores; 4'.) X. 1i)— 2:5 W.; Orkneys, rare; oi)- N. 22" 



— 2S" W. 

 May: W \. 2.^- W.; H()- X. it W. to r)7'— 5!^ X. 2«- W., 



not rare, in some spots common. 

 ■I mil': 57° X. M^ W., rare; from S. Iceland to the Faroes, 



wliere very common, and Scotland. 

 Jahj: S. Iceland, rare; i^^aroes, rare; 5K' X. 32° W., not rare. 

 August: Azores, more or less rare; Westmannao, rare; 63° N. 



25° W. to ii'r N. 33' W., more or less rare. 

 Srprciiibei': 66° X. IS" 30'° W., rare; Shetlands, rare; (i'r X. 



31°_;.52" W.; 68° 46' N. 53° W. 

 (Mohrr: 61°— 63° N. 5°— 10° W., rare. 

 18U!) April: Fiiroes, rare. 



May: Westmannao, rare; Faroes; rare. 



Sf'ptemhrr: In' N. 17° E. to 81° N. Kr E., more or less 



common. 



Ostenfeld's data used. 



