ÖFVERSIGT AF K. VETENSK.-AKAl). FÖRHANDLINGAR 1900, N:0 1. 25 



? C. longipes Grimm. 

 (Stat. 11.) 

 Depth: 30 feet; shells and algse. 



C. Barbot-de-Marnii Grimm. 



(Stat. 2, 7, 8, 9 and 11 and at Baku.) 



Depth: 13 feet — 8 sashen; on all kinds of bottom. 



C. caspium Eichwald. 



(Stat. 7 and 8 and at Baku.) 

 Depth: 13 feet — 7 sashen. 



Adacna vitrea Eichwald. 

 Stat. 2, 5, 6, 7, 8, 9, 12 and 13. 



A. edentula. 



Stat. 2, 5, 6, 7, 8, 9, 12 and 13. 



Dreyssena polymorpha van Ben. 

 Stat. 2, 3, 7, 8, 11, 12 and 13. 



Other classes than Mollusca and Comstacea were only slightly 

 represented: 



Chironomus. 



Larvse were dredged at Stat. 3, 6, 8 and 9 in a depth from 

 16 feet to 8 sashen. 



Amphicteis invalida 



was rather common and found at Stat. 2, 3, 6, 9 and 10 in a 

 depth from 16 feet to 8 sashen. 



An unknown Oligochcet which låter has been iost was found 

 at Stat. 3 and 6 in a depth of 16 — 19 feet, shells and mud. 



