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bulletin: museum of comparative zoology. 



tide. This reef runs into the beach four hundred metres north of the 

 river. It has a decided dip to seaward. 



Following along the beach a hundred metres or so from the southern 

 end of this reef, one comes up behind a second stone reef that stands out 

 in the water some seventy-five or one hundred metres from the beach. 



Just around the turn of the shore is a third reef, — this one upon the 

 beach. It dips seaward beneath the outer reef, which is here only about 

 forty metres away from it. The size and position of this shore reef are 

 shown on the accompanying map. 



