14 KAARE MÜNSTER STRØM: ALGOLOGICAL NOTES. 



Fig. 22. Cosmarium depressum (Naeg.) Lund,, from Finmark plankton. 



A form. which in many respects stands intermediate between the 



the type and the variety achondrum. 

 Fig. 23. Dinobryon divergens Imhof, from Finmark plankton, a form 



approaching the var. pediforme Lemm. 



Note: 

 When reproducing coloured figures in black, the colours do not obtain 

 their original valeur, and the results are not quite as good as when the 

 figures lire drawn in black from the first. The difference is, however, not 

 very striking. 



