PLANKTON OF THE GULF OF MAINE 
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so much deeper that it is prevented from entering Massachusetts Bay by the contour 
of the bottom, and, in fact, hardly encroaches at all on the shallow coastal belt 
within the 100-meter contour. Furthermore, the two agree in their scarcity in the 
southwestern part of the basin of the gulf — that is, just where the physical data, to be 
discussed elsewhere, locate the “dead water” in the anticlockwise eddy that occupies 
the gulf. However, S. maxima, living in the deepest waters of the basin, must follow 
