46 SERTULARIA. 



moft accurately drawn at the fea fide at Brighthelmflone, 

 by my late worthy friend Mr. G. D. Ehret. 



15. Sertularia halecina. Herri?ig-bone Coralline, 



Sertularia ramofa pin- This Coralline is alternately 



natd) ramulis alternis, branched and pinnated ; the 



de7tticulis tubiformibus bi- denticles are formed like tubes 



articulatiS) ovariis ovali- with two joints : the ovaries 



bus, pedunculis lateraliter are oval, each united along 



coadunatis. the fide to a little tubular 



ftalk. 



Herring-bone Coralline. Ellis Phil. Tranf. Vol. 48. 

 tab. 17. fig. E. F. G. Corallin. pag. 17. tab. 10. 



Sertularia halecina. Linn. Syft, Nat. Ed. 12. pag. 1308. 



This Coralline is particularly defcribed in my EfTay on 

 Corallines, and likewife in the Philofophical Tranfactions, 

 Vol. 48. tab. 17. in both which places it is reprefented 

 as it is alive in the fea. 



16. Sertularia pinnata. Jo'mted Sea-brijlle Coralline. 



Sertularia fimplex pin- This Coralline has a iingle 



nata et articulata y pinnis pinnated ftem ; the little 

 altemis arcuatis, denticulis branches are placed alternate- 

 femicampa?iulatis fecimdisy ly, and expand themfelves 

 ovariis ovatis co?tfertis ore like an arch on each fide : the 

 coronatis. denticles are on one fl.de, and 



half bell-fhaped : the ovaries 

 are oval, coming out in cluf- 

 ters along the ftem ; their 

 openings look like little 

 crowns. 



Sea 



