OBELIA DICHOTOMA 59 



This species is common in deep water, 

 and may be found amongst the trawlers' 

 rubbish, where it has much the appearance of 

 tangled horse-hair. 



Obelia dichotoma, Linnaeus. 

 1 specimen in liquid. 



SPECIMEN This specimen is apparently Obelia 

 25. dichotoma. It bears a great 

 resemblance in details to 0. gelatinosa, and 

 U. longissima, but differs from O. gelatinosa in 

 habit, and in the stem being simple instead of 

 compound ; from 0. longissima in form, habit, 

 etc. ; and from both because the rim of the 

 receptacle is not toothed. 



The specimen is on a fragment of 

 Tubular ia. 



Not very common. 



Campanularia verticillata, 



1 specimen dry, 1 in liquid. 



SPECIMENS This is a very distinctive species. 

 26, 26a. The stem is compound and throws 

 out around its axis branches which branch 

 again. The polypites are borne on rather 



