4 8 



SERTULARIA 



1 8. Sertularia fpinofa. 



Sertularia mollis ramofa 

 pellucida, ramulis cre- 

 berrimis teneris dichotomis, 

 [pints terminantibus, den- 

 ticulis obfolctis fecundis dif- 

 tantibus, ovariis vefcuice- 

 formibus. 



Silk Coralline. 



This Coralline is fmooth, 

 tranfparent, and branched ; 

 the fmaller branches are very 

 tender, many, dichotomous, 



and gradually end in points ; 

 the denticles are but juft via- 

 ble, and placed at a diftance 

 from each other on the fame 

 fide, from whence the ovaries 

 that are like veficles proceed. 



Silk Coralline. Ellis Corallin. pag. 20. tab. 11. No. 17. 

 %. b. d. B. C. D. 



Sertularia fpinofa. Linn. Syft. Nat. Ed. 12. p. 131 2. 



This Coralline has fomething very lingular in it, each 

 polype-head being inclofed in a veficle, which falls o£r 

 when the head decavs : whether thefe are the ovaries as 

 well as mouths to fupply the animal with food, future 

 obfervations muff, explain to us, but at prefent it feems 

 moft probable. 



19. Sertularia dichotoma. 



Sertularia longijfima ra- 

 mofa dichotoma, denticu- 

 lis campanulatis, pedun- 

 culis amiulofs, ovariis 

 o-vatis axillaribus, pedun- 

 culis cojitortis* 



Sea-thread Coralline. 



This Coralline is very long, 

 and branched in a fubdivided 

 manner ; it has bell-fhaped 

 denticles, fupported by ftalks 

 full of rings : the ovaries are 

 oval, and fit upon twitted foot- 

 ftalks at the infertion of the 

 branches. 



Sea- 



