408 REPORT^IIi^COMMISSIONER OF FISH AND FISHERIES. 



much less common. Its hydroid cells are comparatively small and their 

 IJedicels very short. 



Several very delicate and beautiful creeping hydroids, belonging to 

 the Campauularians, also occur attached to larger hydroids, and the 

 algne. Among these are ClytiaJohnstoni, having comparatively large, bell- 

 shaped cups, with a notched rim, each borne on a long, slender, generally 

 simple pedicel, ringed at each end, and arising from the creeping stems. 

 iTie reproductive capsules are urn-shaped and annulated. The C. inter- 

 media is quite similar in its growth, but has smaller and deeper cups, with 

 smaller notches around the rim. The Orthojyyxis calicnlata grows in the 

 same manner ; it has beautiful little bell-shaped or cup-shaped cells, 

 with an even rim, each borne on a long, slender, annulated pedicel with 

 one of the rings, just below the cup, very prominent. Its reproductive 

 capsules are large, oblong, smooth, and obtuse at the end. The Platy- 

 pyxis cylindrica has small, very deep , somewhat cylindrical cups, with 

 the rim divided into sharp teeth or notches; each one is borne on a small, 

 slender ijedicel, generally less than an eighth of an inch high, feebly 

 annulated at each end. The reproductive capsules are elongated, com- 

 pressed, flaring slightly at the end. The Campanularia voluhilis, is also 

 a very small, but elegant species ; it has deep cylindrical cups, which have 

 a regularly scolloped rim, the scollops being small and evenly rounded. 

 The pedicels are very slender, and are annulated spirally throughout 

 their whole length, so as to appear as if twisted ; just below the cup 

 there is one prominent rounded aunulation, or bead, the whole resem- 

 bling in miniature the stem of certain wine-glasses and glass vases. 

 The reproductive capsules are vase- shaped, attached by short pedicels, 

 and have the neck elongated and gradually narrowed to the end, 

 which flares slightly. 



The Lafoiia calcarata is also a small creeping hydroid, belonging to 

 another family. It has curved tubular cells. It nearly always grows on 

 ^ertularia cornicina, which is a small species, resembling S. pumila^ 

 (Plate XXXVII, fig. 279.) The Sertularia argentea (Plate XXXVII, fig. 

 280) is a large, i^rofusely branched species, often growing to the length 

 of a foot or more. It is very abundant in this region. >S^. cupressina is 

 closely related, but much less common. The Eydrallmania falcata is 

 also a large species very common on these bottoms. It can be easily 

 distinguished by the spiral arrangement of its branches and the unilateral 

 arrangement of its jug-shaped cells along the branches. 



The Eudendrium ramosum and E. dispar are not uncommon on rocky 

 bottoms, and are both beautiful species, somewhat resembling the 

 Femiaria, (Plate XXXVII, fig. 277.) 



The species of Polyps are the same as those found on rocky shores 

 at low-water mark. The coral, Astrangia Eanw, (p. 329,) is much more 

 common than on the shores, and grows larger, some of the specimens 

 becoming four or five inches across, and rising up in the middle into 



