ÖPVERSIGT AF K. VETENSK.-AKAD. FÖRHANDLINGAR 1900, N:0 1. 15 



Stat. 7. 24/4. 50° 33' E. long. (Greenw.), 44° 57' N. lat. 



Temperature at the surface + 15°. 7 C, at the bottom 

 + 15°. 4 C. Depth 13 feet. Algse and shells without any rauddy 

 deposits. Two species of Gobies and one Bentliophilus together 

 Avith specimens of Syngnathus. The invertebrated fauna was 

 also rieh. Great numbers of difFerent species of gammarids and 

 other crustaceans were coUected. Ostracoda were observed here 

 for the first time, and rather abundantly. Several Cardiums, 

 Dreyssena, Caspia and Neritina also occnrred and Cordylopliora 

 was common. In this place on shells of Neritina and Dreyssena 

 a hitherto unknown alga Melobesia caspia, which has just been 

 described by Mr Foslte in this volume, was collected in this 

 dredging rather abundantly. 



Stat. 8. 50° 27' E. long. (Greenw.), 44° 53' N. lat. 



Temperature at the surface + 13° C, at the bottom + 12°. 8 C. 

 Depth 17 feet. Shells and clayey mud. The fauna of this 

 station agreed pretty closely with that of Stat. 6. 



Stat. 9. 50° 15' E. long. (Greenw.), 44° 38' N. lat. 



Temperature at the surface + 12°. 5 C, at the bottom 

 + 10°. 5 C. Depth 8 sashen. Dead shells and clayey mud. 2 

 specimens of Bentliophilus, Adacna, Micromelania and Caspia 

 were typical for this place. Boeckia was only found here but 

 the most interesting animal was the strange-looking, pink Archoi- 

 obdella. When I first saw this animal I did not realise what it 

 was, but when laid in a glass containing water it began to swira 

 with typical hirudinean movements and then I understood at 

 once that I had obtained Archceobdella. 



Stat. 10. 25/4 E. off Kulali. 50° 14' E. long. (Greenw.) 

 44° 55' N. lat. 



Temperature at the surface + 13". 8 C, at the bottom 

 + 13°. 8 C. Depth 17 feet. Clay with dead shells. The living 

 raolluscs were comparatively few, and not even the number of 

 crustacea was great. 



