98 NATURAL HISTORY OF 



Genus II. Calycella, HincJcs {in part) . (koXv^, 

 a cup.) 



Stem a creeping, tubular fibre, or erect, compound, 

 and brauclied, rooted by a filiform stolon. Calycles 

 tubular, with an operculum formed of convergent seg- 

 ments or a plaited membrane. Polypites cylindrical, 

 with a conical proboscis. Reproduction by fixed spo- 

 rosacs. — T. H. 



1. C. SYRiNGA, Lijin. Plate V. fig. 1. 



Sertularia syringa {Linn., Berk, Turton, Stew., Base), 

 S. volubilis {Pal.), S. repens {E. and S., Hogg), Clytia 

 syringa {Lamx.), Campanularia syringa {Lk., V. B., 

 Aid., Flem., G. J., B. Q. C, De B., D. L., P. E. G.), 

 Capsularia syringa (Gray), Wrightia syringa {Ag.). 



Hab. : Very common. Height |- in. 



This species is described by Ellis (''Corallines," 25), 

 under the name of the " Creeping Bell Coralline." It 

 is very minute, and is parasitic on M. pilosa and other 

 zoophytes. It is of a dark hoim-colour, and has the 

 calycle prolonged into an operculum. The calycles are 

 borue on pedicels, which are twisted with from 4 to 9 

 rings. The margin of the calycle is seen to be slightly 

 sinuafced under the microscope. 



2. C. FASTIGIATA, Aid. 



Campanularia fastigiata {Aid.). 



Hab. : Shetland, the Hebrides {A. M. N.), Cornwall 

 {Hincks). Height of calycle -^ in. The calycle is long 

 and tubular, borne on a ringed pedicel, and terminates 

 above in two opposite points, " between which a mem- 

 brane on each side slopes over the aperture, forming 

 an operculum, resembling the roof of a house." 



Described by Mr. Alder in the Ann. of N. H. for 

 February, 1860. 



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