THE WHITE SEA 



213 



its dominant forms are the two molluscs Portlandia arctica and Leda pernula 

 and the two echinoderms Asterias lincki and Ophiocantha bidentata. 



Derjugin considers the crawling transparent jellyfish Lucemosa saint- 

 hilairei, the pink transparent actinian (not yet identified), the molluscs Modio- 

 laria nigra var. bullata, Chaetoderma nitidulum var. intermedia, the poly- 

 chaetes Myrioehele heeri and Maldane sarsi, the crustacean Acanthostepheia 

 malmgreni and Rozinante fragi/is, the asterid Poraniomorpha tumida, the 

 transparent ascidian Eugyra pedunculata, the small fish Liparis major, as 

 equally characteristic for this peculiar community. 



The qualitative indices for this pseudo-abyssal community are given in 

 Table 93. 



Table 93. Constituents of the pseudo-abyssal community according to the data 

 obtained by use of bottom-sampler 



The population of the bays. The distribution and composition of the bio- 

 coenoses of the benthos of the Rugozerskaya Inlet (the southern side of the 

 Gulf of Kandalaksha, see Fig. 90) are given in Fig. 89. The Inlet is adequately 

 enclosed from the sea except for a narrow pass. The depth of its middle part 

 reaches 25 m. G. Gurvich (1934) has given a description of the bottom 



