62 P E N N A T U L A. 



Red Sea-Pen. Phil. Tranf. Vol.53, tab* 21. fig. 

 1. 2. 



Pennatula rubra, Linn. Syft. Nat. Ed. 12. pagM322. 



The Italian Sea-Pen differs from the Britifh fo much, 

 that there is no room to doubt but they are very different 

 fpecies. The BritiiTi is much longer, more ilender, and 

 not fo flemy as the Italian ; but the broad, warted, midrib 

 and fpiny fins of the latter, diftinguifli it plainly ; be- 

 sides, the denticles are placed fo thick as to appear like a 

 double row. This varies in color from a deep red to a 

 pale red. Doctor Shaw obferves of this, that on the 

 coaft of Algiers it fends forth fo great a light in the night, 

 that the fimermen can diftinguiih the fifh as they fwiixi by 

 it, fo as to know where they caft their nets. This was 

 brought from the coaft of Italy. I am indebted to my 

 learned friend Thomas Pennant, Efq. F. R. S. for the 

 curious fpecimen reprefented in the Philofophical Tranf- 

 actions. 



3. Pennatula fpinofa. The Thorny Sea-Pen. 



Pennatula Jiirpe car- This Sea-Pen has a flemy 



nofa> rachi Icevi^ pinnis item, a fmooth midrib, and 



itnbricatis plicatis fpino-. thorny fins folded one over 



Jis. another. 



Penna grifea. Bohadfch mar. 109. tab. 9. fig. 1 — -3. 

 Phil. Tranf. Vol. 53. tab. 21. fig. 6 — 10. 



Pennatula grifea. Linn. Syft. Nat. Ed. 12. pag. 13 21. 



I have changed Bohadfch's name of grifea to fpinofa, 

 as being more defcriptive of its character, the fins differing 

 from any of the fpecies yet known by their long fpines. 

 The fuckers, which I have carefully examined, and had 



drawn 



