LUCERNARIA. 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. John 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 Zucernaria, 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 
