BRITISH MARINE ALGiE. 



93 



Calithamnion Turneri. Summer. Parasitical on other 

 Algee. Bovisand ; Whitsand Bay ; Torquay. 



Calithamnion virgatulum. Summer. Torquay, grow- 

 ing on Ceramium rubrum. 



Calothrix caespitula. Summer. On rocks near high- 

 water mark. Miltown Malbay. 



Calothrix confervicola. Autumn. Mount Edgecumbe ; 

 Torquay. Growing on decayed Ceramium. 



Calothrix fasciculata. Autumn. On rocks below high- 

 water mark. Miltown Malbay. 



Calothrix hydnoides. Summer. Appin. 



Calothrix luteola. Summer. On marine filiform Algae. 

 Appin. 



Calothrix Mucor. Summer. On marine Algae. Brigh- 

 ton. 



Calothrix pannosa. Summer. On rocks near high- 

 water mark. Boundstone Bay. 



Calothrix scopulorum. Autumn. On rocks near high- 

 water mark. Boundstone Bay. 



Calothrix semiplena. Summer. On Corallina offici- 

 nalis. Kilkee. Sidmouth. 



Carpomitra Cabrerae. Winter. Mount Edgecumbe ; 

 Torpoint ; dockyard, Plymouth. 



Catenella Opuntia. Summer. Mount Edgecumbe ; 

 Bovisand. On rocks near high- water mark. 



Ceramium acanthonotum. Spring and summer. Fire- 

 stone Bay ; under the Hoe ; Plymouth ; Torquay. 



