Siphorie^s.'] codium. 307 



Family XVIII. SIPHONE.E. 

 Genus LXXXYII. CODIUM, StacJchouse. 



Gen. Char. Erond green, sponge-like (globular, cylindrical or 

 flat, simple or branched), composed of tubular, interwoven, inar- 

 ticulate filaments. Fructification, opake vesicles attached to the 

 filaments. — The name is from a Greek word signifying the skin 

 of au animal. — Gremlle. 



1. CoDiUM ADHERENS,, Agarclk. 



Hab. On marine rocks. Perennial. Summer and winter. 

 Ptare. In England, Mrs. Griffiths, Mr. Ralfs, Miss Warren, 

 Mr. Peach ; in Ireland, Mr. D. Moore, and Mr. G. Hynd- 

 mau. See Pliyc. Brit., PI. xxxv. A. 



2. CoDiuM AMPHiBirM, Moore. 



Hab. On tui'f-banks at extreme hisrli-water mark. Dis- 

 covered by Mr. M^Calla near Poundstone Bay. 



3. CoDiUM Bursa, Agardk. 



Hab. On rocks in the sea. Piare. In England, coast 

 of Sussex, plentifully. Hollas, Turner ; Cornwall, ^Ir. Eash- 

 leigh ; Torquay, IMrs. Griffiths ; Brighton, Mr. M. C. Pike ; 

 Belfast, Mr. Templet on. See Dr. Greville^s excellent de- 

 scription, ' Algee Britannicpe,^ p. 186. 



4. CoDiuM T03iENTOSUM,.6'/ac/(7^(9?^5^. (Plate XYI. fig. 03.) 



