14 



C. littoralis (Harv.) C. Ag. 



Kings: Fort Hamilton, Pike. 



C. atropurpurea (Harv.) C. Ag. 



Queens: Glen Cove, Pike. 



POLYSIPHONIA Grev. 

 P. urceolata (Dillw.) Grev. 



Common along the coasts. 

 P. subtilissima Mont. 



Queens : Jamaica Bay, Pike. 

 P. Olneyi Harv. 



Kings: Canarsie, Pike. 

 P. Harveyi Bailey. 



Not infrequent along Long Island. 

 P. elongata Grev. 



Queens : Glen Cove, Pike. 

 P. fibrillosa (Dillw.) Grev. 



Kings : Jamaica, Fort Hamilton, Pike. 

 P. violacea (Roth) Grev. 



Suffolk : Greenport, Montauk Point, Pike. 

 P. variegata (Ag. ) Zan. 



Common along the coasts. 

 P. parasitica Grev. 



Kings: Fort Hamilton, Pike. 

 P. atrorubescens (Dillw.) Grev. 



Suffolk : Orient, Miss Booth ; Noank, Farlow. 

 P. nigrescens (Dillw.) Grev. 



Common along the coasts. 

 P. fastigiata (Roth.) Grev. 



Queens: Glen Cove, Pike. Suffolk: Montauk Point, Pike. 



BOSTRYCHIA Mont. 

 B. rivularis Harv. 



Kings: Hellgate, Harvey; College Point, Peck; Rockaway 

 Beach. Queens : Cold Spring Harbor, Johnson. 



RHODOMELA C. Ag. 



R. subfusca (Woodward) C. Ag. 



Not infrequent along the whole coast. 



DASYA Ag. 



D. elegans (Mart.) Ag. 



Common along the whole coast. 



CERAMIACEAE. 



SPERMOTHAMNION Aresch. 

 S. Turned (Mart.) Aresch. 



Not infrequent in Sound and in harbors of the south shore. 



