174 CAMPANTJLARinXE. 



slight a description, unaccompanied by any figure but one 

 of a single calycle, is not sufficient for the purpose of 

 identification. 



Hub. Firth of Forth (T. S. W.). 



Species referred provisionally to this genus. 



C. (?) GIGANTEA, 



" On new British Hydroida,'' Ann. N. II. for October 1866 (3rd ser.) xviii. 

 297. 



Plate XXXV. fig. 1. 



STEMS delicate, of a very light horn-colour and papyraceous 

 texture, annulated at the base and below the calycle, 

 irregularly and sparingly branched; branches erect, 

 copies of the primary shoot, sometimes themselves 

 branched ; HYDROTHEC^E of enormous si~e, deeply cam- 

 panulate, very wide at the top and for some way below it, 

 and then tapering off gradually, length about double the 

 greatest width, the rim cut into broad and blunt teeth ; 

 GONOTHEC^E unknown. 



Height about an inch. 



THIS well-marked form may be at once recognized by the 

 extraordinary size of its calycles, which arc very much 

 larger than those of any other known species. They vary 

 somewhat in breadth, but their dimensions are always 

 gigantic for the tribe. 



The general habit of growth resembles that of Gono- 

 thyrtea gracilis (Sars). The primary shoot sends off one 

 or more branches, generally at a considerable height above 

 the base, each of which is a pretty exact copy of itself. 

 These branches are somewhat constricted at their origin, 

 and closely ringed for some distance above it ; they ter- 



