178 Rev. T. Hincks on British Zoophytes, XV. — Further Notes on British Zoophytes, loith descriptions of new Species. By the Rev. Thomas Hincks, B.A. [With two Plates.] It is with peculiar pleasure that I have to record the discovery of two new species of the beautiful genus Campanularia in the British Seas. The first which I shall describe is allied to the Campanularia Syringa and the C. dumosa, and belongs to the section of the genus which is distinguished by the " dense cor-neous texture " of the cells and the shortness of the pedicle. The only specimen which I have yet seen occurs on a fragment of Nitophyllwn from the north of Ireland, and was sent me for description by my father, Professor Hincks of the Queen's Col-lege, Cork. Genus Campanularia. i. C. parvula ijlxavks). Stem creeping ; cells very minute, on short ringed stalks, campanu-late, the aperture entire. The creeping stem is of great delicacy, and forms a rude kind of network over the surface of the weed. The cells are exceed-ingly minute, campanulate, of equal width throughout till within a short distance of the base, when they are abruptly rounded off; of a somewhat dense, corneous structure, and mounted on very short stalks, composed of about four rings. The aperture is truncate and the margin plain. This pigmy species is, I believe, the smallest of the ' Bell-corallines,' and there is no other British form with which it can be confounded. The shape of the cell is very distinctive, and is well preserved in dried specimens. Hub. Weed from the north of Ireland (Plate V. A.). ii. C. caliculata (Hincks). Stem o'eeping, filiform; cells on rather thick crenated stalks, campanulate, having an interior cup which contains the body of the polype, and is prolonged below into a tubular case, which pervades the pedicle and envelopes the medullary pulp ; rim entire. This vei7 beautiful and interesting species was first obtained by Mr. R. S. Boswell, lately of Ramsgate, from Pegwell Bay. In the course of the past summer this gentleman showed me a spe-cimen of it, amongst some other zoophytes, exquisitely mounted according to a peculiar method of his own, and expressed an opinion that it was new, an opinion in which I was much inclined to agree with him. Within the last few weeks my friend Richard