BRITISH ZOOPHYTES. 107 



each denticle or cell filled with part of it, ending in 

 tufts of tentacula. A small piece of one of the sprigs 

 was put into a watch-glass of sea water, and, notwith- 

 standing the separation of its body, in five minutes' 

 time the claws or tentacula were moving about in 

 search of prey/' 



2. S. Gayi, Lamx. Plate V. fig. 4. 



Sertularia Gayi {Lamx., T. H., Aid., McA.), S. eri- 

 coides, var. {Pal.), Sertulaire de Gay {De B.), S. poly- 

 zonias, var. /S. {G.J.). 



Hab. : Cornwall {T. H.), Plymouth {A. S. P.), Isle 

 of Wight {Solander), Norfolk and Suffolk {C. W.P.), 

 Durham and Northumberland {Aid.), Shetland {A, 

 M. N.), Dublin Bay. Height 4^10 in. 



This species has been considered allied to the pre- 

 ceding, but it is in every way much coarser and stouter. 

 The aperture of the calycle is 4- toothed, that of the 

 gonotheca has 2 teeth. 



3. S. TRICUSPIDATA, Aid. 



Sertularia tricuspidata {Aid., McA.), S. ericoides 

 (Esper). 



Hab.: North-east coast {Aid.), Seascale (A. S.P.). 

 Height 2 in. 



Described by Mr. Alder, North, and Dur. Cat. in 

 Trans. Tynes, F. C, iii. 111. Stem slender, light- 

 brown, branched. Calycles cylindrical. Gronothecas 

 ribbed, with a " funnel-shaped " aperture. " The rim 

 of the aperture of the calycle rises into three strong 

 denticles, the largest in front, the other on the sides." 



4. S. RUGOSA, Linyi. Plate VI. fig. 1. 



Sertularia rugosa (Linn., Pal., Esp., E. and 8., Fahr., 

 Flem., Lavik, G. J., D. L., P. H. G., McA.), Clytia 

 rugosa {Lamx., Temp.), Sertularia patagonica {D'Orb.), 



