230 



Z. HELIANTHOIDA. 



LuCERNARIA. 



Dunluce Castle, county Antrim, in great numbers ; July 1815," Tern- 

 pleton. Berwick Bay, rare. 



Our figures represent this beautiful animal in its natural size. The 

 individuals from which they were drawn were of a clear pinkish red 

 colour, but Montagu says that it is " pellucid, green, brown, purple, 

 red, or yellow, and all the intermediate shades in different subjects." 

 It adheres by a short stalk, cupped in its base and variable in its de- 

 gree of distinctness, dilating into a sort of campanifonn blossom, the 

 margin of which is set round usually with eight short processes or 

 arms, each of them terminated with a globose tuft of about sixty glandu- 

 liferous filaments, (Fig. 36, a.) The arms are mottled with two rows 



Fig. 36. 



of spots, occasioned by the ova (6) ; and they are connected together 

 by a thin transparent membrane. Between each pair there is an oval 

 vesicle (c) placed on the edge of this membrane. Lamouroux asserts, 

 apparently on the authority of Ch. Muller, that this vesicle appears 

 only at certain seasons, and again disappears, — a statement which re- 

 quires confirmation. The mouth forms a slight quadrangular pro- 

 jection in the centre of the cupped expansion, exactly opposite the 

 contracted base. 



In the specimens which furnished the vignette to this order (Fig. 

 28,) there were nine glanduliferous tufts ; and Montagu's figure re- 

 presents a monstrosity with seven only, but as there is no appearance 

 of marginal tubercles in it, the figure may belong to the following 



