SERTULARIA. 



57 



32. Sertularia Filicula. 



Sertularia ramojiffima 

 pinnata^ ftirpe fiexuofa^ 

 ramulis ex angulis alter nis y 

 denticulis ovato tubulojis \ 

 ftigulo adaxillam arreElo\ 

 ovariis obverfe ovatis apice 

 tubulatis. 



Tab. 6 



Fern Coralline* 



This Coralline is very much 

 branched and pinnated ; the 

 flem is bent to and fro into 

 alternate angles ; the little 

 branches are produced from 

 the angular points ; thefe are 

 furnifhed with oppoflte oval- 

 tubulated denticles : in each 

 axilla, or part where the little 

 branches come out, is an erect 

 fingle denticle. 



Fig. c. C. 



Tab. 6. 

 Fig. Co 

 C. 



This is one of the mod delicate fpecies of our Englifh 

 veficular Corallines. It has been taken by fome authors 

 and collectors of thefe fubftances, for a lefler fpecies of 

 the Sertularia abietina, or Sea- Fir : but the Angularity 

 of its waved flem, with its erect fingle denticle at the in- 

 feTtroti of the branches, together with the fingle pair of 

 denticles on each part of the Item, that form the angles, 

 make it a very diftinct fpecies from any of this genus. It 

 is commonly found upon the coaft of Scarborough, in 

 Yorkflirre. 



3.3. Sertularia quadriden- 

 tata. 



Four-toothed Coralline* 



Sertularia Jimplex arti- 

 culata repens, denticulis 

 quaternis oppofitis ventri- 



This creeping Coralline 

 fends forth fingle ftems, that . 

 are jointed ; the joints have 

 eoftSy articulis fubturbina- generally four denticles of the 



I tis 



Tab. 5. 

 Fig. g. 



