360 Mr. J, Alder on some new genera and species 



seldom if ever detached. The ovicapsules are large, ovate or 

 subcylindrical, more or less elongated, with a truncated top, and 

 very strongly plicated transversely ; they rise from the creeping 

 stem by scarcely perceptible pedicles. (Mr. Gosse has repre- 

 sented a spur at the bottom which I have not observed.) It may 

 be a question for future solution, whether this species is ever 

 branched. I have found branched specimens from deep water 

 very much resembhng this, with a ringed base and strongly 

 denticulated cup, which I believe to be the young of Laomedea 

 dichotoma P, Johnst. [Sert. longissima, Pallas), having once found 

 an example a little more advanced, with the ovicapsules of that 

 species. In Ellis and Solander's ^ Zoophytes,' however, a figure 

 is given of a branched specimen under the name of Sertularia 

 volubilis, with vesicles resembling C. Johnstoni, 



Campanularia Hincksii. PI. XIII. fig. 9. 

 Camp, volubilis, var., Hincks in Ann. Nat. Hist. 2nd ser. vol. xi. p. 180. 



Stem creeping, plain ; pedicles long, nearly smooth, with two or 

 three slight spiral twists at the base, and two or three sphe- 

 rical rings at the top, one of which is within the cup : cells 

 rather long, with parallel sides, wrinkled or lineated longitu- 

 dinally; marginal denticles ten, of a squared or castellated 

 form, a little indented at top. 



Height li to 2 tenths. 



On shells and zoophytes from deep water : rather rare. 



This species differs from the two former in the castellated 

 form of the rim, and also in the shape of the cup, which is 

 broad at the base and lineated longitudinally ; the spherical ring 

 within the cup is also a distinguishing character. The pedicle 

 is long and quite smooth, with the exception of one or two rings 

 at its junction with the cell, and a shght spiral twisting at the 

 base. In this respect it differs from the C. volubilis of Van 

 Beneden, the cells of which, though differing in shape, have a 

 somewhat similar castellated rim, but the pedicle is short and 

 strongly annulated throughout. This latter will probably 

 constitute a fourth species. The C. Hincksii was first noticed 

 by Mr. Hincks, who described it in the ' Ann. Nat. Hist.' for 

 March 1853, as a curious variety of C. volubilis, from specimens 

 sent him by Mr. Templar from the West of England. I have 

 since met with it sparingly from deep water on the Northum- 

 berland coast. Mr. Hincks informs me that in his specimen the 

 ovicapsules were apparently smooth, but from their imperfect 

 state of preservation, this character was not satisfactorily made 

 out. My specimens are without capsules. 



