CAMPANULARIA. 167 



of the margin of the polype-cell. When folded down or 

 drawn within the cell, the top of this appears truncated. 



5. CAMPANULAKIA LACERATA, Dr. Johnston. 



Hab. Parasitical on Plumularia falcata, Berwick Bay, 

 Dr. Johnston ; and on Cettularia scruposa, at St. Andrew's, 

 Prof. J. Reid. 



This little creeping bell coralline seems as yet seldom to 

 have been met with. It is described by Dr. Johnston, 

 "Cells arising from a slender tubular stem, which creeps 

 upon the ramifications of other corallines, scattered, on 

 very short pedicles, consisting of four or five equal rings, 

 ovate, the upper part of a conical form, and divided into 

 six deep lanceolate segments, which, in our specimens, are 

 all connivent, and form an acute apex." Professor Eeid 

 states that the tentacula can extend twice the length of the 

 cell, and that they have numerous small tubercles adhering 

 to their outer surface. 



** Stem composed of many parallel tubes. 



6. CAMPANULARIA VERTICILLATA, Horse-tail Coralline, 

 Ellis. (Plate X. fig. 33*.) 



Hab. Near Whitehaven, Dr. Brownrigg; near Hartle- 

 pool, Mr. Hogg; Scarborough, Mr. Bean; Cullercoats, 

 * In the Plate this is named, by mistake, Laomedea verticillata. 



