THE ZOOPHYTES. 151 



We have kept them alive for a considerable time. 



Antennularia antennina (Lobster's Horn Coralline, or Sea 

 Beard). Parasitic on shells and stones in deep water, 

 forming dense clusters ; it is a beautiful species, and is 

 often dredged up from the scallop bank, off Southport. 

 We have obtained some specimens nearly eighteen inches 

 in length ; the colour when first obtained is bright, but it 

 soon changes to a dull horn colour. In the sponge-like 

 base of one of the larger specimens we obtained a number 

 of very minute crabs, some not exceeding hemp-seed in 

 size, and the largest about the third of an inch long, of a 

 brilliant red colour ; some of the females had bundles of 

 ova nearly as large as their bodies. 



Antennularia ramosa (Branching Lobster's Horn Coralline). 

 This is nearly allied, if not a variety of the preceding. 

 Large specimens are procured from deep dredging in the 

 same localities as the last species. 



Plumularia falcata (Sickle Coralline). A beautiful species, 

 abundant on the receding of the tide. 



Plumularia cristata (Crested Coralline). Frequently thrown 

 ashore growing on the Halidrys siliquosa (the Podded 

 Sea-weed) in great profusion ; also on other kinds of fuci, 

 shells, and stones ; the vesicles form a beautiful micro- 

 scopic object, and are readily obtained. They may be 

 gathered in profusion in the months of March and April, 

 and again in the end of August and September ; often 

 parasitic on Plumularia falcata. 



Plumularia setacea. Common on shells and other corallines, 

 and the coarser kinds of fuci, growing in loose tufts. 

 It is found in shallower water than some other kinds, and 



