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SUMMARY 

 The following analysis shows what percentage of the total number of species occurring 

 on all bottoms the species confined to any one of the several kinds of bottom constitute ; 

 and also in how many of the total number of hauls on all bottoms the species so confined 

 were caught. It should, however, be borne in mind that many of the species occur on 

 more than one kind of bottom and are, therefore, not included. 



ANIMAL ASSOCIATIONS 

 Examples of the following species were found living in association with other animals : 

 Trypanosyllis gigantea, Autolytus charcott, Syllis brachycola and Syllis brachychaeta 

 inside a colony of Cephalodisciis nigrescens, living in the tubules of the polypides. 

 Nereis kerguelensis and Polyeunoa laevis in association with an Alcyonarian. 

 Hermadion magalhaensi and Harmothoe spinosa from a Tubularian colony. 

 Platvnereis magalhaensis from the carapace of a Paralomis. 

 Idonthyrsiis armatus found attached to large Molgulidae. 

 Hermadion magalhaensi from a Chaetopterus tube. 



