BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 269 
CHART OF 
VINEYARD SOUND 
AND 
BUZZARDS BA 
SHOWING 
Y 
DISTRIBUTION OF SPECIES 9 
NEW BEDFORD@ \°a a 
g 8 Q 
o 8 
’ Ser 
CHART 51.—Strongylocentrotus droebachiensis. ( See explanation of chart 26.) 
