Rare and remarkable animals of Scotland, represented from living subjects: with practical observations on their nature . rity, be not effected by the vigour of the parts, as thevegetative power advances the stem whereon the new series shall originate. Besides the groups dispersed on this product, in various numbers,sometimes a straggling single cell may be seen. A yellowish or greenish colour pervades the whole zoophyte. Theclusters are yellow : the cell transparent, its tenant faint yellow, as is evi-dent while contracted within. The product appears as a parasite, or rooted independently on s
Rare and remarkable animals of Scotland, represented from living subjects: with practical observations on their nature . rity, be not effected by the vigour of the parts, as thevegetative power advances the stem whereon the new series shall originate. Besides the groups dispersed on this product, in various numbers,sometimes a straggling single cell may be seen. A yellowish or greenish colour pervades the whole zoophyte. Theclusters are yellow : the cell transparent, its tenant faint yellow, as is evi-dent while contracted within. The product appears as a parasite, or rooted independently on solidsubstances. I am informed that it is abundant in some of the Scotish Seas. ButI have never found it so. On the contrary, it has been rare. Plate L. Fig. 1. Valeria imbricata. 2. The same, enlarged. 3. Hydra, enlarged, ^ 2. Valkeria cuscuta.—Dodder Coralline.—Plate LI. Figs. 1, 2.—Another cluster-zoophyte, much more common than the preceding, ap-pears as a very minute pendulous chain, of a greyish colour to the nakedeye. I have never seen it erect, its slenderness and flexibility, indeed, being r. 1. y cac/i^;lui tM/jr////// /..?.- / ZOOPHYTES. 249 such that it cannot sustain itself unsupported; whence, it either hangs asa parasite from other marine substances, or stretches along the surface ofshells. The stem, no thicker than a human hair, extends sometimes an inchand a half in length. It is smooth and tubular, seldom with any branches;though specimens do occur with several, and then they diverge to rightand left. Numerous clusters of from six to eight or ten ovate cells are im-planted on the stem and branches, at intervals, and occasionally with con-siderable regularity. The cells may be also seen in pairs, when one cell ison each side of the stem. Here the clusters are more numerous, and innearer approximation to each other, than in the species above described. An ascidian hydra, with eight cUiated tentacula, occupies the cell,which, like the other, is prolon
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectzoology, bookyear1847
