80 NATURAL HISTORY OF 



Sertularia volubilis {E. and S., Berk., Turt., Stew. 

 Bosc, Hogg), Campanularia volubilis {G. J., Couch, 

 EincJcs, A. N. H., July, 1852, D. L., Gosse), C. John- 

 stoni [Aid., T. 8. W.,All., McA.), Eucope campanulata, 

 thaumantoides, and afl&nis [Gegenhaur), Campanularia 

 bicophora (Ag.). 



Hab. : Extremely common between tide-marks to 

 deep water. Height ^ in. Stems simple, transparent, 

 ringed at the base and below the calycle. Calycle 

 campanulate, with about 11 indentations on the rim. 

 GonothecEe oval, deeply ringed. Polypite large, with 

 about 25 long tentacles. 



Mr. Hincks has divided the Campanularia voluhilis 

 of Johnston into two species, viz. Clijtia Johnstoni and 

 Campanularia volubilis. Dr. Johnston evidently, from 

 his list of synonyms, included both forms under the 

 latter designation. 



C. Johnstoni is a common but very elegant species. 

 " The cells," says Gosse, " are shaped like an old- 

 fashioned ale-glass, being long and narrow, with a slight 

 constriction just above the point of connection with 

 the footstalk, where a false bottom or diaphragm runs 

 across, perforated with a narrow hole in the centre," 

 through which the coenosarc is prolonged. The poly- 

 pite is large and dilated at the base into a sort of foot, 

 which spreads over the diaphragm. It has a large, 

 fleshy, trumpet-shaped proboscis, the lips of which 

 possess remarkable powers of contraction and changes 

 of form. The gonothecse develope free medusae. These 

 medusae are from -jij — 3^ in. in size at the time of 

 liberation, and have attracted much notice from their 

 great beauty of form. They were first observed by 

 Van Beneden, and are also described fully by Mr. 



