STUDIES IN MARINE ECOLOGY. 



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Amphipholus squamata . 

 Ophioderma brevispina. 



Arbacia punctulata 



Echinarachnius parma. . 

 Strongylocentrotus 



drcebachiensis 



eptosynapta in] 

 hyone briareus 



inophilus sp.? . 



Ampharete setosa 



Amphitrite attenuate. 



Amphitrite brunnea 



Amphitrite ornata 



Arabella opalina - 



Arenicola cristata , 



Autolytus cornutus 



Autolytus varians 



Chcetopterus pergamentaceus . 

 Cirratulus grandis 



Cirratulus tenuis 



Capitella sp.? 



Clymenella torquata 



Diopatra cuprea 



Drilonereis longa 



Enoplobranchus sanguineus . 

 Glycera americana or 



dibranchiata 



Harmothos imbricata 



Echinoidea. 



