Contribntion L 



-1 



-: 



h 



å 



Here the dredge hardly will be able to sound. But just m 

 such places a large number of smaller algæ form a luxuri- 

 ant «underwood». I have inostly uaed other instruments 

 than the common dredge but not always with good luck. 



In zoography East- and "West-Finmarten are regarded 

 as two distinct provinces within the arctie region. Cp. Sårs 



r 



in Tromso Mus. Aarsh. II, p. 62, In an algological point 

 of view there is, certainly, not so great a difference that they 

 may be regarded as really distinct. But still there is, in 

 some respects, a rather great difference. The algæ that cha- 

 racterize the marine Flora at East-Finmarken are also at 

 West-Finmarken forming the main mass of the vegetation. 

 But the subordinate elements and the composition of the for- 

 mations are often different. West-Finmarken forms thenor- 

 thern limit to a number of boreal forms, either wanting at 

 East-Finmarken, or appearing here in scattered and more or 

 less dwarfish individuals. And at East-Pinmarken also oe- 

 cur several high-northern algæ, not found, as far as hitherto 



known 



Farther 



j 



many algæ which are, as far as known, exclusively litoral 

 in the southern part of the Norwegian Polar Sea, or even 

 at West-Finmarken, descend sometimes nrettv far in +,hp qnb. 



com- 



litoral zone. And others appear generally in the limit be- 

 tween the litoral and sublitoral region, or at extreme low- 

 water mark, but on the other hand, more south they are li- 

 ving higher up. It is also worth noticing that the repro- 

 ductive organs often seem to be developed later in the year 

 than farther south. A more detailed view as to the 

 position of the Flora in general and its relation to other 

 parts of the Polar Sea will be given in connection with a 

 List of the marine Algæ of West-Finmarken, which I hope 

 to be able to publish before long. 



It may be remarked that, with regard to the extend of 

 the districtj I have foUowed the political limits^ referring to 



