TABLE 3.--Benthic invertebrate and epifauna collected October-November 1978, and 

 May 1979 at four scour sites in the Columbia River estuary. 



Jetty A 



Tansy 

 Point 



Interstate 

 Bridge 



Tongue 

 Point 



1, 2 

 1, 2 



1, 2 



alb I 



Phylum Ctenophora 1 ,-*2 J 



Phylum Platyhelminthes 



Class Turbellaria 2 



Phylum Nemertea 1,2 1, 2 



Phylum Acanthocephala 



Phylum Nematoda 1, 2 1,2 



Phylum Annelida 



Class Polychaeta 



Family Nephtyidae 



Nephtys californiensis 1 , 2 

 Family Nereidae 



Neanthes limnicola 2 



Family Orbiniidae 



Haploscoloplos spp. 1, 2 



Family Phyllococidae 



Eteone dilatea 2 



Family Spionidae 



Polydora spp. 1 



Spio f ilicornis 2 1 



Family Capitellidae 



Capitella capitata 1 



Class Oligochaeta 2 1 1, 



Phylum Mollusca 



Class Gastropoda 2 



Class Bivalvia 



Family Corbiculidae 



Corbicula manilensis 1 



Family Tellinidae 



Macoma balthica 1 , 2 



Family Mytilidae 



Mytilus edulis 1, 2 2 



Phylum Arthropoda 



Subphylum Mandibulata 

 Class Crustacea 



Subclass Branchiopoda 



Order Cladocera 12 2 



Subclass Copepoda 1, 2 1, 2 1, 2 



Subclass Cirripedia 



Family Balanidae 



Balanus crenatus 2 



aj Collected in October-November 1978 

 bj Collected in May 1979 



2 

 1, 2 



1, 2 



1, 2 



2 



1, 2 



1, 2 



1, 2 

 1, 2 



449 



