niATo.MACK r. — cose '.IXC (DISCUS ;U7 



COSCINODISCUS CONCINNUS W S\] ' 

 (Roper Micr. Jouni. Vol. \ I. ls:„s |>|. ||| lig. |-j.) 



1898 Mtirclr. 7 X. ;");') W.. (•oimiM.ii ; lit X. 2 W., not rare; 11 X. 



()() \v. to W N. 70' \V., as a rule rare. 

 Al>i-il\ ()0' N. 4"^ W., not rare; hOP N. 8^ W., rare. 

 Met 11 : ~r X Wi~ ^V., commorj; 60^ N. ~r — 10^ W., rare. 

 Jiitic; Faroes, rare; 09" N. 54" W., rare. 

 July: 59- N. 2' E. and 2" W., rare. 

 Aufjiist: ()0' \. 4' W., very rare; ()V N. 8^ W., very ran-; 



59^' N. 2" W., not rare. 

 September; 00' X. 2'— \V , more or less rare; 09' X. 5,') W.. 



not rare. 

 Oetober: 08^ X. 12 W.. not rare; Faroes, not rare; 00' X. 



4' W. and 02' X. 7 W., not rare. 

 Noccmber: 63° X. IH \\'., not rare; Faroes, common; 00 — 



()l" X. 4'— 5° W., not rare; 41^ X. 00' W., rare. 

 Drccnibcr: Fiiroes, very common; 41" X. (U \V.. common; 



41 X. 00^ W. 



1899 J(u/f'(irtj: Far()es, common; 45' X. 49 ^V., rare; 41' X. ()9' \V. 



not rare. 

 FcbriKtrif. M<ire/i and Aju-il: Faroes, common. 

 May. Faroes, common; 57 X. 8" E., not rare; 17 X. 57 ^V.. 



not rare. 



Temperature: 7.i, mean of 85 obs.. ma.x. ll.:i, min. 2.? — 

 (Xortli of S. America 20.i;— 2(5.7 . 



Salinity: 8i.7o, mean of 85 obs., max. .'55..-,.-,. min. 81. s^. — 

 (Xorth of S. America: 81. s- — 82.<!2). 



Plankton-type. This species occurs most abundantly in the 

 region of the Fiiriies, round the British Islands and along the E. 

 coast of X. America. Its occurrence X. of S. America is very inter- 

 esting. — .V.N-. 



* Ostenfeld's data used. 



