BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



517 



CHART OF 



VINEYARD SOUND 

 BUZZARDS BAY ^S 



SHOWING \>S\ 



DISTRIBUTION OF SPECIES H 



NEW BEDFORD® 



Chart 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. 



