r,i 





Plate 4.— Classification: system Marine, subsystem Intertidal, class Rocky Shore and Aquatic Bed, subclass Rubble and 

 Algal, water regime Regularly Flooded, water CHEMISTRY Euhaline. The dominant organisms are rockweed (Fucits spp.) 

 and acorn barnacles (Balanus spp.). Most stones are larger than 30.5 cm (12 in.) in diameter. (Washington County, Rhode 

 Island; July 1977) 



