I>I.VT(»MA(.K.K — COSCINODISCL'S 



Temperature: ;').!, mean of C) obs., inax. 7.7, niin. — O.u 

 Salinity: .'5 is.-,, mean of J) obs., max. H") .-,.•■, min. 'M.w. 

 Plankton-type. The rare oecurreme in the ocean indicates, 

 thai this species is of neritic habitat. — A//. As. exceptionally 7'. 



COSCINODISCUS RADIATUS Km:. 



(A. Schmidt Adas I'l. I,X li-. !».) 



[,Sl)(S .hunmry: 20" N. IS \V., common; IS- N. (i W.; )\~r X. 



7:v A\'. 

 JAz/v//: 2P N. 18^ W.; 49^ X. ±2 W. 

 .l/;/77: Faroes to 58" N. 1" W. 

 May: Karr)Ps, common; (')(> — (il X. 1 \V.; 41 N. oti W. 



rare. 

 .////?/•: ()()^ X. I' W'., rare. 

 Julij: Faroes not rare; 59^ X. 1 W. 

 Aiifjiisf: Faroes, rare. 

 Scptcinhi'r: 59" N. 1"^ W., rare. 

 (k'tohrr: Fiiroes, not rare; 59' N. 1" W. 

 Xovcmhcr: Westmannao, not rare; Fiiroes, not rare; liO X. 



r W., rare; 51- N. 20 W., rare. 

 Ih'rcmhcr: Fiiroes, cojnmon; 4H" N. (il W'.. common. 

 1899 January: Faroes, common; 47" N. 8' W., not rare; 45" N. 



49° AV. to 41" N. 69" VV'., more or less rare. 

 Fcbfiiary: Fiiroes, common. 

 J/rt/rA: NE. of Iceland, from ()() N\ 20' VV. to CkJ" X. 9 W.. 



varying from rare to common; Fiiroes, (^onunon. 

 May: 41" N. 5() W., rare. 

 Jiin,'-. ()()' N. 10 W., rare. 

 .Jiitir: 70- X. D) W., not rare; ()6 -07 X. H - 10 \V.. rare; 



()2- N. I K., rare. 

 .//////: 71 X. 17 W., rare. 



Temperature: 7.4. mean of 2() obs., max, IS, min. O.t. 



Salinity: ;)i..s4, mean of 25 obs., max. ;{5. ,;.-., min. )\\.'m; (common). 



Plankton-type. This form is evidently more neritic than i)er 

 lagic and occurs in the Arctic Sea, abundantlv at the Fiiroes, round 

 Iceland and round Scnthmd. — A7/ and As. 



21 



