A HISTORY OF SUSSEX THECAPHORA CAMPANULARIIDil 11. Clytia johnstoni, Alder. Colonies trailing over most objects, sea- weed, stones, shells, wood, etc., throwing up delicate partly-ringed stems terminating in calycles with dentate margins. The capsules are annulated and nearly always borne upon the stolon ; gonozooid medusi- form, minutely spotted with opaque white. Very common, ranging from the beach to moderately deep water. Hastings. 12. Obe/ia genicu/ata, hinnxus. This very common little species throws up a zig-zag stem from a trailing stolon, giving off at each bend a short branch ending in a plain-rimmed calycle. Cap- sules borne in the axils. The gonozooids of Ohelia have the peculiar habit of often turning the swimming-bell inside out. Common upon weed, stones, shells, etc., upon the beach, and in deeper water. Has- tings. 13. Obelia gelatlnosa, Pallas. A very beautiful zoophyte suggestive of a young and graceful birch tree. The stem is compound and the branches are usually given off in regular whorls. The calycles are said by Hincks to be dentate, but they are very difficult to define under the microscope, the margin usually appear- ing folded inwards. The capsules are deep and vase-like and are formed in the axils. A large and common species often growing in very exposed positions on the shore. From imperfect specimens preserved the impression is gained that this species may also occur with simple stolonic stem, over- running other zoophyte stems. Hastings. 14. Ohelia /ongissima, Pallas. A species sometimes over a foot in length, branching and tapering gradually to the summit. The calycles are squarely dentate ; capsules a little deeper than wide. Amongst the trawlers' rubbish it may be readily mistaken for a tangle of hair. Common in the trawl from deep water. Hastings. 15. Obe/ia dichotoma, Linnzeus.* Hastings. 16. Campanularia iritigra, McGillivray.* Hastings. 17. Campanularia verticillata, Linnaeus. Stem and main branches compound. Around the axis are given off simple, partly- ringed branches, rather long and of equal length terminating in dentate calycles. The capsules are long and narrow-necked, and occur on the compound parts of the axis. Not uncommon in the trawl from moderately deep water. Piastings. 18. Campanularia flexuo^a, Hincks. The notes and sketches at hand of this species only allow of the remarks that the calycles have a plain margin and are borne upon rather long and well-ringed foot- stalks, and that the capsules are an elongate oval in form. Hastings. 19. Campanularia neglecta. Alder.* Hastings. 20. Lovinella clausa, Lov^n. A minute species throwing up long slender stems ringed at the top, undulating else- where, with deep elegant calycles of which the scalloped margins are prolonged into pointed segments which meet overhead, closing the aperture. The chitine appears to be of some thickness at the bottom of the calycle, gradually thinning out towards the top ; polypite with from twelve to fourteen tentacles ; no capsules observed. A single specimen associated with Perigo- nimus repens upon Nucula nucleus. Coral- line zone. Hastings. 2 1 . Gonothyrea gracilis, Sars. This zoophyte at first glance with the hand-glass may be mistaken for Clytia johnstoniy but the calycles are much deeper, the teeth of the margin longer and sharper, and inclining inwards rather than outwards. The stem just below the caly- cle has four or five rings and again at the base is ringed. Branches bearing a ter- minal polypite are given off at about two- thirds of the distance up the stems. Upon Tubularia indivisa ; rare. Hastings. Campanulinid^ 22. Opercularella lacerata, Johnston. Zoophyte of very slender habit. It oc- curs wound like fine thread around the polyzoan Anguinella palmata, throwing up short branching stems much annulated. The calycles on short ringed footstalks have the plain margin cut into segments which meet over the centre, forming an operculum. The polypite stretches out of its calycle fully to the extent of the length of the calycle. The species also occurs upon sponges ; not general. Hastings. 78
