44 



SERTULARIA. 



and proceeding from the back tube. This Coralline is 

 common on the Britim coaft. 



I have lately received from Dominica, fome very large 

 fpecimens of this kind, fix inches high, that are loofely 

 branched, and grow ere£t on {hells. The ovaries of thefe 

 are more oblong, and refemble thofe of a bean-pod, and 

 have eight or nine furrounding criftated ribs. 



Befldes thefe, we often meet with a very minute va- 

 riety on the Fucus natans, or Gulph-weed, and fome 

 other varieties from the Mediterranean and the Eaft 

 Indies. 



13. Sertularia Myriophyl- 

 lum. 



Sertularia pinnata, pin- 

 nis altemis, rachi nodofa^ 

 nodidis exter?ie arcuatis 

 dijlantibus\ dentkulis fe- 

 cundis truncatis Jlipula- 

 tifque. 



Pheafanfs-tail Coralline, 

 tab. 8. 



Sertularia Myriophyilum. 

 pag. 1309. 



Pheafanfs-tail Coralline. 



This Coralline, with feather- 

 like branches alternately dif- 

 pofed on the front of the mid- 

 rib or ftem, the back of which 

 has arched knots, placed at 

 a diftance from each other ; 

 the denticles are even at top, 

 each like a cup fupported by 

 a focket, with a fhort fpine in 

 front, and are placed in a row 

 above one another on the un- 

 der part of the little feather- 

 like branches. 



Ellis Corallin. pag. 14. 

 Linn. Syft. Nat. Ed. 12. 



The 



