Crustaceans: 



Balanus balanoides Linnaeus 

 Gammarus locusta Linnaeus 



barnacle 

 beach flea 



V . High salinity, subtidal, soft bottom epifauna 

 Molluscs: 



Placopecten magellanicus Gmelin 



Retusa obtusa Montagu 



Lacuna vincta Turton 



Nassarius trivittatus Say 



Cingula aculeus Gould 



Cylichna alba Brown 



Colus sp. 

 Crustaceans: 



Pandalus borealis Krbyer 



Crago septemspinosus Say 

 Echinoderms: 



Echinarachnius parma Lamarck 



VI. High salinity, miscellaneous bottom types, wanderers 

 Crustaceans: 



Homarus americanus Milne -Edwards 

 Cancer borealis Stimpson 

 Cancer irroratus Say 

 Carcinides moenas Linnaeus 

 Hyas araneus Linnaeus 

 Pagurus bernhardus Linnaeus 



VII. Low salinity (0-27 o/oo), intertidal sediments 

 Polychaete worms: 



Nereis diversicolor O. F. Miiller 



Glycera dibranchiata Ehlers 



Polydora ligni Webster 



Scolilepides viridis Verrill 



Heteromastus filiformis Claparede 



Hypaniola grayi Pettibone 

 Molluscs: 



Mya arenaria Linnaeus 



Macoma balthica Linnaeus 



Ensis directus Conrad 



Nassarius obsoletus Say 



Paludestrina minuta Totten 



Hydrobia salsa Pilsbry 

 Crustaceans: 



Cyathura carina ta Krbyer 



Corophium volutator Pallas 



VIII. Low salinity, intertidal solid substrate 

 Molluscs: 



Littorina littorea Linnaeus 

 Mytilus edulis Linnaeus 

 Volsella demissa Dillwyn 



sea scallop 



mud snail 



distaff shell 



shrimp 

 mud shrimp 



sand dollar 



lobster 

 Jonah crab 

 rock crab 

 green crab 

 toad crab 

 hermit crab 



blood worm 



soft -shell clam 



razor clam 

 mud snail 



periwinkle 

 mussel 

 ribbed mussel 



17 



