BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. SF 
CHART OF 
VINEYARD SOUND 
AND 
BUZZARDS BAY 
SHOWING 
DISTRIBUTION OF SPECIES 
Cuart 247.—Polysiphonia nigrescens (Dillwyn) Greville. 
A species abundant and widely distributed, growing on stones and shells frequently over muddy 
bottoms, which accounts for its presence in the middle regions of Buzzards Bay. 
