. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. noTkVLLUS 'I. 59 recent in the microscope. The first time they hauled in the drudge, I discovered a most extraordinary sea- production surrounding the stem of an oldfucus feres : it was of a hardish, but fleshy substance, and more than an inch thick, of a light brown or ash colour, the whole surface covered over with bright yellow shining and star-like bodies, which induced me to believe it to be an undescribed species of alcyonium. I put it immediately into a bucket of sea-water, expecting every moment, that the
. The British Tunicata; an unfinished monograph. Sea squirts; Tunicata. noTkVLLUS 'I. 59 recent in the microscope. The first time they hauled in the drudge, I discovered a most extraordinary sea- production surrounding the stem of an oldfucus feres : it was of a hardish, but fleshy substance, and more than an inch thick, of a light brown or ash colour, the whole surface covered over with bright yellow shining and star-like bodies, which induced me to believe it to be an undescribed species of alcyonium. I put it immediately into a bucket of sea-water, expecting every moment, that the polypes, which I thought to lodge in those little stars, would extend and shew themselves like those of the alcyonium, X° - of //'///'.s Synopsis', commonly called dead-man's hand; but after more. FIG. 119.—Face vievr of a system of Botrijllus Schlosseri. Magnified. (After Ellis, loc. cit., pi. xiv, f. C.) than half an hour's fix'd attention, the vessel lying very quiet all the time, I did not perceive the least appearance of any polypes : upon which I brought them to shore in the sea-water, and then, by means of my microscope, I discovered every one of those stars to be a true animal, and much more beautiful than any polype, but quite of a different structure ; which I shall now describe to you. " Every one of those stars is composed of many thin hollow radii, of a pear-shape form, from five to twelve or more in number, all united intimately at their smaller end : every radius appears broad at the extreme part from the center, and a little convex in the middle of this raised broad part. When the animal is alive, there appears a circular little hole, which contracts. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Alder, Joshua, 1792-1867; Hancock, Albany, 1806-1873; Hopkinson, John, 1844-1919; Norm
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