Fig. 31. 



FAMILY VIII. ACTINIID.E. 



19. Actinia,* Linnseus. 

 Character. Body conoid or cylindricaly adhering by a 

 broad base : the space between the mouth and the rim of the up- 

 per disk occupied by one or more uninterrupted series of conical 

 undivided tubular tentacula lohich are entirely retractile. 



1. A. MESEMBRYANTHEMUM, body conoid, smooth ; tentacu- 

 la numerous, multiserial ; margin of the oral disk ornamented 

 with a circle of azure-blue tubercles. 



Var. a. Body and tentacula of a uniform liver-broMTi or olivaceous colour, 

 rarely streaked with bluish or green lines. 



Vignette, No. 31. 



Ortie de mer, Reaumur in Mem. de I'Acad. Roy. des Scienc. 1710, pi. 10. 

 fig. 22 Priapus equinus, Lin. Syst. edit. 10. 656. Hydra disci- 

 flora, tentaculis retractilibus, extimo disci margine tuberculato, Gccrtner 



in Phil. Traas. lii. 83, pi. 1. fig. 3. Actinia equina, Zm. Syst. 1088. 



Dicquemare in Phil. Trans. Ixiii. 364, pi 16, fig. l-Tf Mull. Zool. 



* From uKTiv, a ray. 



f Dicquemare himself uses no specific names": they were applied to his 

 figures by Dr Solander, who, it is to be presumed, was well acquainted with the 

 Linnjean species. 



