Zoophytes. 2377 



affair I merely acted as collector for a lady of our party, who, as an invalid, was often 

 unable to roam far from our lodgings ; and it is from her specimens and memoranda 

 the present list has been compiled. As a novice, doubtless many species might escape 

 my observation, especially of the small incrusting kinds. We placed many of the spe- 

 cies in sea-water, hoping to obtain a view of their interesting inhabitants, but only in 

 one instance with a satisfactory result : this was in Laomedea geniculata, so frequently 

 " infesting " (say the botanists, but surely a better term would be ornamenting) that 

 most common of sea- weeds, Fucus serratus. In many of the fine purplish bunches of 

 Tubularia indivisa the polypes protruded from the tubes, but hung down in an appa- 

 rently lifeless state. Perhaps the heavy rains, which almost continually prevailed 

 during the few weeks we spent on the coast, might, by soaking the specimens left by 

 the tide, seriously impair the health of these minute creatures ; as immersion in fresh 

 water is, I believe, said to be almost instant death to them. One day, whilst we were 

 closely watching a number of corallines placed in a glass of sea-water, a most elegant 

 little animal made its appearance, moving along the sides of the glass by means of its 

 tentacula (four or five in number) : it was very conspicuous, from its snowy whiteness, 

 and somewhat resembled (except in size) the magnified figure of Hydra vulgaris given 

 in Johnson's ' British Zoophytes,' pi. 1, fig. 2, only far more delicate and beautiful. 

 On one of the very few fine mornings we had whilst at Dover I walked along shore to 

 St. Margaret's, and a mile or two beyond it. Here I was exceedingly struck with the 

 quantity and beauty of the corallines, especially Sertularia operculata, bunches of 

 which, driven by a high wind, were caught by every little plant growing above high 

 water-mark, and their slender ramifications were so thoroughly separated by the blast 

 as to present an exquisite and inimitable softness : I had never before seen it in such 

 beauty or profusion. 



Zoophytes found at Dover, \Oth mo. (October), 1848. 



Alcyonium digitatum. Common. 



Antennularia antennina. Frequent. 



Antennularia ramosa. In scattered fragments. 



Cellepora pumicosa. Spoiling other corallines continually with its stony lumps. 



Cellularia reptans. 



Crisia eburnea. Abundant. 



Flustra carbasea. Frequent. 



Flustra foliacea, truncata and membranacea. Abundant, very large. 



Laomedea geniculata. Common. 



Lepralia variolosa. Common. 



Membranipora pilosa. Common. 



Notamia loriculata. Not common. 



Plumaria cristata. Occasional, on Halydris siliquosa. 



Plumaria falcata. In great abundance and of large size. 



Serialaria lendigera, Frequent. 



Sertularia abietina. Abundant. 



Sertularia argentea. Frequent. 



Sertularia cupressina, and also (apparently) intermediate forms between this and 

 the preceding species. 



Sertularia operculata. In profusion. 



Sertularia polyzonias. Occasional. 



Sertularia pumila. Common. 



