168 HISTORY OP BEITISH ZOOPHYTES. 



Mr. Alder; Cornwall, Devon, and Norfolk, Mr. Peach; 

 Hastings, Mr. Tumanowicz ; Dublin Bay, Mr. Hassall ; Bel- 

 fast Bay, Mr. W. Thompson ; Magilligan, Mr. Hyndman ; 

 off the Cumbraes, Clyde, Prof. E. Forbes. 



" This curious coralline appears through the microscope 

 to be of the most singular structure of any yet described. 

 It consists of sundry branches, and every branch is com- 

 posed of many stout, united, small tubes, which at certain 

 equal distances send off small capillary screw-like stalks, 

 each of which supports a cup of a bell-shaped figure, curi- 

 ously indented round the brim. These are placed in such 

 a manner as to correspond exactly in point of situation with 

 the others, and to give the whole very much the appearance 

 of the plant called horse-tail, or Equisetum; the capillary 

 stalks and their cups being all disposed in whorls or like 

 branches for candles." (Ellis.} The pedicles are ringed at 

 top and bottom. The vesicles which arise from the stem 

 are smooth and short-stalked. The first specimens we had 

 of this were from Mr. Tudor, Bootle. 



7. CAMPANULARIA DUMOSA, Pallas. (Plate XI. fig. 35.) 



Hab. On rocks and corallines, in deep water. 



There are two varieties of this coralline, of both of which 

 we have specimens. The larger is three or four inches in 



