LTJCERNARIA. 263 



This is a very beautiful creature, sometimes pink, and in 

 other cases brown, purple, or yellow. It adheres by a short 

 stalk, and spreads itself out into a kind of bell-shaped blos- 

 som, the margin of which is set round with eight short 

 arms, each of these terminated with a round tuft of about 

 sixty filaments, bearing rounded glands. 



3. LUCERNARIA CAMPANULATA, Dr. JoJin Coldstream. 



Hab. On seaweeds, near low- water mark, Torbay, Dr. 

 Coldstream ; Berwick Bay, Dr. Johnston. 



About an inch in height, of a uniform liver-brown colour. 

 The interior is hollowed like the blossom of a flower. Dr. 

 Coldstream, who kept a specimen for some weeks in sea- 

 water, says that it is a hardy animal, constantly expanded, 

 except when very roughly used. 



The Lucernarice, in general, can swim with some rapidity 

 in the water, by alternately expanding and contracting the 

 body. When in a state of expansion, Dr. Johnston re- 

 marks, few marine worms exceed them in beauty and sin- 

 gularity of form ; when contracted, they are shapeless and 

 easily overlooked. He gives a quotation from Lamouroux 

 respecting this Lucernaria, which I shall take the liberty of 

 translating. " I took the precaution of changing, twice a 

 day, the water in which my Lucernaria were kept. One of 



