CAMPANULARIADj; : CAMrANULARIA. 109 



Couch's observation, that " the animal possesses the power of corru- 

 gating the whole, " readily explains this variation in its appearance. 

 " This elegant microscopic sepcies is furnished with a delicate 

 joint or hinge, situated at the base of each little cup. This beauti- 

 ful contrivance is designed, I imagine, to enable this frail zoophyte 

 the better to elude the rude contact of the element by which it is 

 surrounded, by permitting it to bend to a force which it cannot re- 

 sist." A. H. Hassall. 



2. 0. INTEGRA, " stem a single tube, filiform, creeping ; cells 

 on long slender twisted pedicles, campani/orm, with the rim 

 entire; vesicles — f"" W. W. Saunders. 



Plate XXVIII. Fig. 2. 



Campanularia Integra, Macgillivray in Ann. and Mag. N. Hist. ix. 465. — Camp, 

 laevis ? Couch Com. Faun. 42, 



llah. " Don-mouth ; parisitical on Tubularia indivisa/' J. Mac- 

 gillivray. Hastings, W, W. Saunders. On stones and shells from 

 deep water, Polperro, R. Q. Coiccli. 



" This species, which I believe to be new, differs from the pre- 

 ceding in having cells with the rim entire, and not serrulated, as in 

 C. volubilis. With C. syringa, the only other British species of the 

 genus which has a single tube for a stem, it can never be con- 

 founded : the ' denser corneous texture, cylindrical tubular cells, 

 and short pedicles' of (7. syringa are perfectly distinctive." J. Mac- 

 gillivray. 



In January, 1841, I received specimens of this species from Mr. 

 Saunders, named by him C IcBvis. In habit, texture, and size, it 

 resembles C. volubilis very exactly, but the rim of the cell is even 

 and smooth. The stalk is twisted like a screw, except at the top, 

 where there are four or five annuli, as represented in our figure. 

 Of his Camj:). Icevis Mr. Couch says, that the cells are " on long 

 slender unringed footstalks," but the even or ringed condition of the 

 stalk affords no specific character. " The polype," he adds, " has 

 eleven lono: and slender tentacula." 



'& 



8. 0. iNTERTEXTA, " texturc spougy, composed of single 

 tuhular fibres very much interwoven with each other, not ringed ; 

 cells campanulate, apertures even.'''' R. Q. Couch. 



