408 On Sea Anemones and Hydroid Polyps 



the Gulf of St. Lawrence. I have not seen it for many years, and 

 a drawing which I have preserved, does not correspond exactly with 

 any described species known to me, hut it closely resembles T. 

 Dumortierii of Van Beneden. (See Fig. 6.) 



The species both of Eudendrium and Tubularia, give birth in 

 summer to beautiful medusiform individuals, or free poly paries, 

 that swim on the surface of the water like little translucent balls 

 or cups of jelly, and in turn give birth to the germs of fixed gene- 

 rations like their parents. 



Family Campanulariadce. 



1. Laomedea {Companularia) dichotoma — The genera Campa- 

 nularia and Laomedea, which perhaps should not be separated, have 

 slender ringed branches supporting conical or bell-shaped cells, 

 in which are beautiful tassel-like polyps. This species occurs in 

 Miss Carey's collection from Metis, and I have also specimens from 

 Nova Scotia, one of which is represented in the living state in 

 Fig. 6. 



2. L. gelatinosa. — In Miss Carey's collection from Metis. It 

 is noted by Stimpson as found at Grand Manan. 



3. L. geniculata, or a similar species is very common on sea- 

 weeds in the Gulf of St. Lawrence. 



These creatures also produce medusiform progeny in immense 

 abundance in the summer months, and it is partially through 

 these means that they appear in countless multitudes on the 

 leaves of marine plants, the bottoms of boats, and similar situa- 

 tions, in which they are developed as if by magic. 



Family Sertulariadw. 



1. Sertularia argentea. — The genus Sertularia includes species 

 that have two rows of cells placed like teeth or triangular projec- 

 tions on the opposite sides of the stalk. The polypary is horny, 

 usually brownish and plant-like in appearance. S. argentea, 

 known to British collectors as the " Squirrel's-tail coralline," is 

 one of the most beautiful species, and was found in Ga^pe Bay 

 attached to shells of Pecten Magellanicus, and itself loaded with 

 quantities of smaller Zoophytes, which somewhat mar its beauty 

 though they add to its interest. This species is common to both 

 sides of the Atlantic. Stimpson found it at Grand Manan. 



2. S. pumila. — " Sea-oak coralline " is a small species which 



