MARINE ALG.E OF THE UNITED STATES. 709 



Suborder MYRIONEMEJ3. 



* 



Leatfiesia tubertformis, Gray. 



New York, northward ; Europe. 



Elachista fucicola, Fr. 



New England : Europe. 



Myrionema strangulans, Grev. 



Fisher's Island, N. Y.; Wood's Hole, Mass.; probably every- 

 where. 

 Myrionema Leclancherii, Harv. 



Gay Head, Mass. 



Suborder ARTHEOCLADIE^. 



Arthrocladia villosa, Duby. 

 Wilmington, ST. C. ; Europe. 



Suborder SPHACELARIE^. 



Cladostephus spongiosus, Ag. 



New England coast; Europe; Cape of Good Hope; Australia; 

 Cape Horn, &e. 



Cladostephus vertictllatus, Ag. 



New England coast ; Europe. 

 Sphacelaria fusca, Ag. 



On Ampliiroa Californica, San Diego, Cal. ; England. 

 Sphacelaria radicans, Ag. 



New England coast; Europe. 

 Sphacelaria cirrhosa, Ag. 



New York, northward ; Europe. 



Suborer ECTOCARPE.2E. 



Myriotrichia filiformis, Harv. 



Penobscot Bay ; Ehode Island ; Europe. 



ECTOCARPUS BRACHIATUS, Harv. 



Boston, northward ; Europe. 



Ectocarpus firmus, Ag. (E. UttoraUs, Harv.). 



New England coast ? ; Europe. 

 Ectocarpus Farlowii, Thuret. 



Peak's Island, Me. ; Marblehead, Mass. 



Ectocarpus longifructus, Harv. 

 Penobscot Bay. 



Ectocarpus siliculosus, Lyngb. 



Charleston, S. C, northward ; Europe ; Australia. 



Ectocarpus amphibius, Harv. 

 New York ; Great Britain. 



