HoS niATOMAf;E>: TIIALASSIOTHItlX 



Aiif/usl: S. of fceland. rare; Davis's Strait, &2 N. f)}) — oli" 



W., very rare; Faroes, rare; oS^ N. 2^ W., rare; Azores, verv 



rare. 

 Scjitfinhci': (3(V N. IS W., coninioii; Faroes, not rare; ;*)*.) N. 



1 \V., to bO N. 10 W., more or less rare; (W-f N. 2iV W. 



to (if) N. :?(') \V., rare; ;")<)- N. W) W. and (U)^ N. 5:'r \V., 



rare. 

 Octohfi-: Faroes to hi' N. 27^ \V. and oS N. ;52 W., rare; IS 



N. ns- \V., rare; W N. ;')<»- W., rare. 

 Xoccirihc/-: Iceland to the Fiiroes, rare; ")(> N. 10 \V. to i~' 



N. 12 W., on the whole rare, bnt connnon at ot N. 20 \V.; 



D! N. ()1 W. (0 12 N. ()4 W., rare. 

 Dcn-inhci--^ HV N. \) W., rare; 4^))- N. 10 W.. rare; 49- N. 



HO W. to 11" N. ()() \V.. rare to common. 

 IS'li) J(i/ni(i/-(/: 4:r N. oT- W., rare. 



Fi'bfiKtry: ?y'\~ N. 10- w., very rare. 



Marc/i : Faroes, rare; 4i^ N. i)' W., not rare; 17 N. 7 W., 



rare; Azores, rare. 

 Ajtril: W' N. 7- \V., rare; 41"^ N. 15 W., not rare. 

 May. Faroes, rare; r)S- N. 4^ E., rare; ol- i\. 20 AV., rare; 



oO" N. 81)' W., rare; 47'— IS- N. o(P— Ifr W., connnon. 

 .Ill lie: (•)()- N. ;^ W. to 70 N. i;{- W., rare. 

 ./?//^: oB" N. :5S \\\ to o.')- N. ot W., as a rule rare, hut 



very common iil 15' W. 

 Scjnciiihcr: DV N. H» E., not rare. 

 (trtohcr: 5(r N. IM" W., rare. 

 Xovciiibcr: 51 N. 1;)^ W., rare. 



Temperature: *.•..-,, mean of li) obs., max. 14, min. 4. Onlv 

 such samples considered as contained this species abundantly) 



Salinity: 8 Lis. mean of 21 obs., max. H5.s7, min. )\2.?>i. 



Plankton-type. This species was found by the Vega Expe- 

 dition abimdantly in the Bering Sea. It is represented in the An- 

 tarctic seas by a much coarser form, which was found there by 

 the Challenger Expedition in great al)undancy. It is a typical arctic 

 form, that has about the same geographical disti-ibulion as ('(ihinns 

 fiiiiiKiri'Jiiriis. — T. 



