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Rh CffiLENTERATA.

West Indies. This curious form has a slender whip-like corallium more than nine feet in length.

Gteay, J. E. — Description of anew Species of Disticlwpora from New Caledonia. Proc. Zool. Soc. 1860, p. 244.

A palmated Coral, which diifers from D. violacea in its bright red tint, and the more compressed, broader, form of its stem and branches ; their shelving edges giving the species " a rather sword-like appearance." The much smaller cells, and narrower lateral cell grooves also distinguish it.

Horn, Gr. IT. — Descriptions of new Corals in the Museum of the Academy. Phil. Acad. Proc. 1860, p. 435.

Muller, Fritz. — On Philomeditsa Vogtii, a parasite on Medusae. A. N. H. 3 ser. vi. p. 432. (From W. Arch. 1860, p. 57.)

This is a free Zoantharian allied, we think, to Peacliia of Grosse. It was first found " adhering singly to the lower surface of the disc in Olindias (nov. gen. JSucopidarum), and afterwards in plenty upon Ckrysaora, in which it dwells on the arms, in the sexual cavities, and in the stomach and its sacs." None of the specimens contained ova or spermatozoa. Rows of minute orifices, leading into the grand cavity, were distinctly seen to radiate from the hinder end of the body.

Yalexciennes, A. — Observations sur les especes de Madrepores en corymbes. Compt. rend. Tom. 1. pp. 1008-9. Ann. N. H. 3 ser. vi. p. 79. (Figures.)

M. Valenciennes here reviews some of the species of Madre- 2?ora. The American forms of this genus, though sufficiently distinct, he considers analogous with those found under corres- ponding latitudes in the Eastern hemisphere.

2. Hydrosoa.

Alder, Joshua. — Description of a Zoophyte and two species of Echinodermata, new to Britain. (With Figs.). Ann. N. H. 3 ser. v. p. 73.

The Zoophyte here described is Campanularia fastigiata, a minute parasitic species allied to C. syringa, from which it chiefly differs in the curious form of the lid closing the orifice of its hydrotheca, or polype-cell. This, " when closed, slopes down on each side like the roof of a house, the two opposite angles form- ing the gables. When the operculum is fully open, the folds disappear, and the edges unite into a continuous rim round the top of the cell."

Allmajst, G-eo. — On the Structure of CardueUa cyathiformis. A contribution to our knowledge of the Lucernariadse. Q. J. Mic. Soc. viii. p. 125.

The structure of this species (== Lucernaria cyathiformis) is detailed, and compared with that of a gymnophthalmatous Me- dusid. The author does not fully estimate the closer affinity of the Lucemariadce to the SteganophtJialmata.