F L U S T R A. 13 



to ftrengthen the animal againft the violence of the waves ; 

 which is very different from any thing in the growth of 

 vegetables. 



3. Fluftra pilofa. Hairy Sea Matt. 



Fluftra foliacea varie Sea Matt with irregular ra~ 



ramofa, poris fetaceis. mifications and hairy cells. 



Irregular fpongy foliaceous Coralline. Ellis Corallin. 

 pag. 73. tab. 31. 



Fluftra pilofa. Linn. Syft. Nat. Ed. 12. pag. 1301. 



This hairy Sea Matt is found frequently incrufting the 

 fmaller fucus's on thefe coafts, and now and then rifing 

 up into irregular leaf-like forms, with cells on both 

 fides. 



4. Fluftra papyracea. Paper Sea Matt. 



Fluftra papyracea utrin- Sea Matt like paper, with 



quecellifera,fummitatibus cells on both fides, having the 



fecuris aciei inftar trim- tops of its branches formed 



catis. like the edge ol an axe. 



The cells of this Sea Matt are of an oblong fquare figure, 

 fwelling out a little in the middle of each fide. The 

 openings of the cells are defended by a helmet-like 

 figure ; from hence the polype-fhaped fuckers extend 

 themfelves. This Sea Matt is of a flender and delicate 

 texture, like thin femitranfparent paper, of a very light 

 ftraw color. 



It was firft found on the coaft of Suffex, adhering; to a 

 fhell. I have fince met, on the fame coaft, about Haftings, 

 in the year 1765, with feveral fpecimens, whofe tops 



were 



