8 KAAKK MÜNSTKR STRØM M.-N. Kl. 



the occiirrcnci' of ( liydonis splurriiiis also indicates the benthonic character 



f)t' ihc |)l;inktMii. 



22. 1 1 a m 1 e ^ r o v a n fl e t is a considerable lake in the district Voss, 

 situated at an elewition of about 590 ni's. It covers an area of 8,8 square 

 kilometres. The niaxiniiim deptli is about 85 m's. The surroundings are 

 Alpine and only covered with Nordic birch-wood, and greater parts are also 

 naked hills and mountains. A single sample was examined. 



Vertical 2j n/\s Jtily 6. iScjy. Very litde phytoplankton at all. 

 Scattered specimens of various plankton-Algæ, as well as benthonic forms, 

 notably Botiyococciis Ih'aiinii, Moiii^cotia sp., ()o(y<itis Xargclii, Tnhellaria 

 fcucstvata and Idlxllaiia Jloiciilosa 7'nr. pcloi^icn. 



23. () p h e i m s \- a n d c t is a lake situated in the district Voss at an 

 elevation of 291 m's. The surroundings are wood-less mountain slopes, 

 to a certain extent also forest and cultivated areas. The depth is varying, 

 the maximum depth being 63 m's. — A single sample. — 



Tlir surface June 28. iSg-]. Very litde phytoplankton, only SpJicrro- 

 cvs/is Scliroeteri in some quantity. The zooplankton rich, consisting mainly 

 of Cyclops sciitifer, but also Holopedium gibbcriim, Dapluiia lacustris, Bos- 

 ni/'/ia ohtiisirostris, lleterocope saliei/s, Diaptomus laliccps and Nntliolca 

 loiii^ispiiio. 



24. E V a n g e r vandet is a long narrow lake, through which the 

 Vosseelv river runs. — The surroundings are steep mountains, and the 

 lake is deep nearly everywhere, the greatest depth measured being 103 m's. 



The surface. July 10. iS^y. This sample contained very litde phyto- 

 plankton at all, Moitge()tia-?[\?Lmtni& were the most conspicuous features. 



25. T o r f i n n s vandet is a considerable mountain lake at an altitude 

 of 867 m's in the district Voss. The surroundings are -naked mountains. 

 A single sample was examined, from the surface. July j. i<Sçj. Only a 

 few specimens of Algæ were observed, among them Gonatozygou Kiiiahaiii. 



26. T y s s e 1 a n d s v a n d e t is a small lake in Sogn og Fjordane, 

 onl}^ a few metres above the level of the sea. The surroundings are steep 

 mountains, the depth is considerable, up to 74 m's, or perhaps more. Two 

 samples were examined. 



/. July 16. l'Sçj. J^ertical j lu's. The phytoplankton of no con- 

 siderable \-olume, only Spl/ærocystis Scliroeteri occurring in small quantities. 



2. July 18. iSgy. The surface. — This sample was of some rich- 

 ness in qualitative respect. The phytoplankton consisted mainly of Sphccro- 

 cystis Scliroeteri which was predominating and some Desmids, such as 

 Staurastriiui Opliiura, Staurastniiit lougispiuuiii, Staurastruni aversimi, 

 Spondylosiuiii plauuiu, (Jouatocygou nionotaiiiimi, Gyinuozvga iiioiiolifoniiis, 

 and Hvalofheca dissilieus. 



1 



