2.Sfi lilATOM.VCK.K — dacteriastrua: 



BACTERIASTRUM ELONGATUM Cl. 



(A Treatise on the Pliyto-plankton PI. I lit!. 19.) 



1898 Jdiinafii: 7" N. W^ W. 



March: area between 8() N. Ho W., i-5° N. 13° W., li)^ N. 



22 W and i-f N. 11° W.; 41° N. (iH" W. 

 April: area between ;!9" N. 21- W., 48° N. 83° \V. and 48 



—50° N. 8°— 9^ W. 

 May: between 18 .\. HO' W and 50° N. 11^ W. 

 JiiiH'-. 62- N. 2' 30' E. 



July: from 10^ N. 67 W. to 12^ N. 48' W. 

 Aufiuxt: 40° N. 59° W.; Azores. 

 XovcDiber: 5()° N. 23- W.; Azores. 



Temperature: 16.8, mean of 24 obs., max. 28, min. 9..s. 

 Salinity: 34.9i, mean of 23 obs., max. 36.2.^, min. 33. th. 

 Plankton-type. Occurs in the Indian Ocean, the Bay of Bengal 

 and, according to Schroder, at Naples. — .S. 



BACTERIASTRUM HYALINUM Lauder. 

 (Trans. Mic. Soc. 1864 Vol. XII PI. Ill fig. 7.) 



1897 JJcrciiihrr: 12° N. 50° W. 



1898 January: 12°— 16° N. 19"--18° W 

 February: 13—16° N. 70°— 71° W. 



Temperature: 27.?, mean of 5 obs., max., 26..-,, min. 20. 

 Temperature, Noted from Hongkong and seems to be a tro- 

 pical, neritic form. — Xl. 



