DIATOM A CK.F, — Cll.l'.TOCKKOS :](¥.) 



CHi^TOCEROS SALTANS Cr.. 

 A Treatise on llie I'liylu-planktoii i'l. I ti^. 8). 

 1898 Aj,fi/: 10 N. 08 W. 



Temperature: 22. 



Plankton-type. Xuicd frotn HS — Dii X. is and (lo \V. 

 — Jjr 



CH^ETOCEROS SCHUTTII ( .l. 



(iKAN. Den Xorske Nordliavs lixpedition I'l. II lij^. I'J, 20). 



ISUS March: 1-5 X. 18' W. 



April: ';\Sf X. 21" W.; IS X. 2:5 \V. 



J/a/y: io^ X. W W.; 19 X. 2)^ VV.; liO X. 1 W., common. 



June: Westmannao, rare; ()2" N. 2" HO' E., not rare. 



Xrjc'iiibcr: 5H^ X. 32'' W., rare; ()(P N. ]" W.. rare; (i3^ X. 

 ^■y W., rare; 1-5' X, 50° W., not rare; 15*^ X. 52" W., very 

 common. 



December: 1-5 X. 51 — 58^ W., coiinnoii. 

 1S99 March.{'lf X. l(i \V.; 1(r — 19 X. 1 P— 9' W. 



April: 15^ X. V^^ W., rare; 1-8' X. 9' W., very common. 



May: 5r X. 20' \V.. rare; (iO"— (U' X. I--— (r \\\. common. 



()ct()hcr: 58^ X. )U W., not rare. 



Xoreinlior: 51^ X. 28 \V., rare. 



Temperature: M..., \wau of 21 obs., max. 22, min. 5. 



Salinity: oi.;>s. mean of 21 obs., max. 38. d... min ;)2..ii. 



Plankton-type, I have found this species in collections from 

 Jedo Hay (.lapan) and Puget's Sound The salinity of some of the 

 richest Atlantic collections was only l}2.:!;i and H2..;:!, which indicates 

 that this species is noritic. occurring only occasionallv drifting in 

 the ocean. — ,V///. 



CH>qETOCEROS SCOLOPENDRA Ci.. 

 (Bill. Kongl. Sv. Votensk. Akad. Handl. Vol. .\XII S n. 5 lis. 4, o\ 



1898 Marr],: 21 X. 18 W.; 11 X. (id W.; K) X. (•)8 W. 

 A]>ril: ()()' X. 2 1 W. 



