2 ARKIV FÖR BOTANIK. BAND 14. N:0 9. 



to me partly from the Geological Commission of that country» 

 but especially by Mr Harald Lindberg. There ought to be 

 mentioned on the first hand some rich series of consecutive 

 samples from different levels, taken by Mr Lindberg at 

 Hindersmossen, in the parish of Karis, and at Kyrkslätt in 

 the parish of Västerkulla, both localities situated in Nyland, 

 Furthermore a series from Panelia in Satakunta. 



The largest contribution, however, is due to a collection 

 of chiefly marine remains, sent to me last year by Mr Lind- 

 berg and labelled Knjäsha and Koudajärvenpää, two places 

 situated in Russian Karelen, at the bottom of the bay of 

 Kandalaks.^ 



The Knjäsha-material is of no little interest, as it proves 

 to contain not only such marine species, as are previously 

 known from the Fennoscandian deposits of the Litorina- 

 epoch, but also rather large quantities of numerous forms, 

 missing in the latter strata, but living in and characteristic 

 to the Arctic Sea. Many of these species and varities have 

 been described in earlier works by P. T. Cleve and A. Gru- 

 Now, as well as in the later works by Mr E. 0strup con- 

 cerning marine, arctic diatoms (cfr the list of literature). 

 Another number of forms, common to the Arctic Sea and 

 the North Sea, have already at a much earlier date been 

 described and figured by mainly British naturalists, such as 

 Gregory, W. Smith and Donkin. 



As Mr Lindberg will speak elsewhere of the Knjäsha- 

 deposit, I shall not enter upon the subject from a geological 

 point of view, but confine myself to an illustration of its 

 biological contents. The following descriptions and drawings 

 are made from a series of slides, that belong to the Riks- 

 museum of Stockholm, where they are kept together with 

 the collections of P. T. Cleve. 



Of the numerous marine species, found at Knjäsha, all 

 hitherto known to science have also been registered from 



* The two localities quoted above are not situated within the political 

 confines of Finland, accordingly, though they belong to the naturally better 

 limited boundary of Finland together with Russian Karelen and the penin- 

 sula of Kola, over which Cleve's researches expanded. The present con- 

 tributions just are from a section of Karelen, the Karelia keretina, that 

 was not at all represented in the collection of samples, upon which Cleve 

 based his work. 



