The newly-born Mytilus settle in masses on conferva and green algae beds 

 right at the water's edge. 



As has been shown by the quantitative estimate of the cliff and rock littoral 

 fauna of the great Kharlovsky Island (eastern Murman, Seven Islands) car- 

 ried out by N. Sokolova in 1941 (1957), the basic forms here are Balanus bah' 

 noides, Littorina rudis and Mytilus edulis which form 98-8 per cent of the total 

 biomass {Table 47). 



The littoral fauna of Kharlovsky Island is considerably impoverished by 

 reason of the swell. This bionomic phylum lies between the first and the 

 second phyla of the classification given above. 



Table 47. Mean biomasss in cross section of rock littoral off Kharlovsky Island, gjm 



