I > I ATOM A ( ■.K.1-. — CH.KTOCEROS 805 



Xnrcnihfr: l;V N. 50^ \V., rare. 

 ISIH) Matf. r)S N. 1-^ -S" K. (coinin.m). 



Temperature: !~* i, inean of 1 obs., max. 11, iniii. »'). 



Salinity: .■5;).;»5, mean of 1 ohs., max. Ho.i.i. min. 1)2. .-.s; excep- 

 tionallv 2:->..vj. 



Plankton-type: As. 



CHi^TOCEROS LACINIOSUS Sciii i i.i 

 (Gran. Don Norske NdrdliavsKxpedititm Fl. 1 (ig. 4—7;. 



1898 April: m N. 21^ W., rare. 

 July: Westmannao, common. 

 August: Westmannao, rare. 

 September: Disco, not rare. 

 Nocember: 63^ N. 13^—16" W., very rare. 



December: 4()-^ N. 50^ W. to 43^ N. ()1^ W., rare to common, 



1899 Mair- Westmannao, rare; 60° N. 1" W., rare. 

 June: We.stmannao, rare. 



Temperature: 8.i, mean of 12 obs., max. IO.2, min. 2.7. 

 Salinity: '-V-^,!-,, mean of 12 obs., max. 35.:i2, min. 31.;..;. 

 Plankton-type. Occurs in the northern Pacific (Lemmermann). 

 — .Vs. 



ch;etoceros LONGISETUS Cl. 



(Ivongl. Sv. Vetensk. Akacl. llaiidl. Vol. X.WIV u. 1 V\. VII lig. 25—29: 

 898 March: 7' N. 55 W. 



Temperature: 25.;>. 

 Plankton-type: .\7. 



Ostenfeld's data for ''. I)ii-iui<>.<ti!< Sclnilt, but not for v. /^^r. c//7".», used. 



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