MAEINE ALG^E OF THE UNITED STATES. 699 



Order BATRACHOSPERME^E. 



Helminthora divaricata, Ag. 

 Key West; Europe. 



Nemalion multifidum, Ag. 



Watch Hill, R. I., and northward ; Europe. 



SCINAIA FURCELLATA, Bivon. 



Newport, R. I. ; Gay Head, Katama, Mass. ; California. Var. un- 

 dulata, San Diego, Cal. ; Europe. Generally in the warmer seas. 



LlAGORA VALIDA, Harv. 



Florida. 



LlAGORA PINNATA, Harv. 



Florida. 

 LlAGORA LEPROSA, Ag. 



Key West ; Gulf of Mexico ; Loo Choo Islands. 



Ltagora pulverulenta, Ag. 



Key West ; Gulf of Mexico ; Japan. 



Liagora farionicolor, Melville. 

 Key West. 



Liagora Cayohuesonica, Melville. 



Key West. 



Order WRANGELIE^. 



Wrangelia penioillata, Ag. 



Key West; Southern Europe. 

 Wrangelia multifida, Ag. 



Key West; Europe. 



Order GIGARTLNE^. 



Phyllophora Brodlei, Ag. 



Long Island Sound, northward ; Northern Europe. 



Phyllophora membranifolia, Ag. 



Long Island Sound and northward ; Northern Europe. 

 Phyllophora Clevelandii, Farlow. 



San Diego, Cal. 



Gymnogongrus Norvegicus, Ag. (inc. G. Torreyi, Ag.). 



Penobscot Bay; Peak's Island, Me.,; Beverly, Nahaufc, Mass.; 

 also near New York ; Europe. 



Gymnogongrus tenuis, Ag. 

 California ; West Indies. 



Gymnogongrus Griffithsle, Ag. 

 California; Europe. 



Gymnogongrus linearis, Ag. 

 California. 



