i)IAT0MA(;E-1': — BACTEMASTRUJI 285 



BACTERIASTRUM DELICATULUM Cl.i 



(Fifteenth annual report of the Fishery Board for Scotland, for the year 1896, 



pag. 298 lig. 16.) 



1898 January: Hfr N. 74-' W. 



February: Caribbean Sea; 34° N. 73^ W. 



Mcirclr. area between the Azores, 45° N. IH W., 48' N. 18- 



W and 45' N. 40- W.; 41° N. 66° W. 

 April: 39' N. 24° W. to the Engl. Channel and thence along 



49° N. to 29' W.; 42" N. 47' W 

 May: 50° N. 14' W.; from 57' N. 25 W. to 60° N. 9' \\'. 

 June: 60°— 62° N. 4' W.— 2' 30' E. 

 July: between 58° N. 33° W., 60 N. 23° W.'and 59' N. 15- 



W. From 41' x\. 60° W. to 40° N. 69° W 

 August: Azores (common); from 63° N. 25° W. to 65^ N. 3:!' 



W.; 41° N. 65' W. 

 September: SW of Iceland, Denmark's Sound, Faroe Channel. 

 October: between (iO' N. 4' ^^' and 59° N. li;^ ^\ . 

 November: Azores; S. and S. E. of Iceland. 

 December: Faroes. 



1899 April: 46'— 48' N. 13'— 9 W. 

 June: 62' N. 1° E. 



October: 53' K. 31° W. 



TemperatUFe: 14.7, mean of 35 obs., max. 26.8, min. 9. 



Salinity: 35. s^, mean of 27 obs., max. 36.2.-,, min. 31 .m. 



Plankton-type. This species appeared in January and Febru- 

 ary in the tropical western Atlantic and in March simultaneously 

 between the Azores and the British Islands and east of New York. 

 In May it had advanced towards the Faroe Channel and reached in 

 June mid-way to Norway, in August to Iceland and Denmark's Sound. 

 It occurs in the Red Sea. — ; N. (typical). 



Ostenfeld's data used. 



