. Bihang till Kongl. Svenska vetenskaps-akademiens handlingar. Science; Botany. 18 SVEN LOVEN, ECHINOLOGICA. soliition of continuity intervened between this circle and tlie next, the plates of whioh, the second ones and the following, M^ere oomprehended in the fixed portion of the corona. The third, fourth and fifth, when completed, were regnlarly hexa- gonal, and higher than they were broad; the second, the lowest pair, was, as yet alone, somewhat defornied and depressed. It was preparing to separate from the following-, to descend and to begin forming the flexible continnation of the corona,
. Bihang till Kongl. Svenska vetenskaps-akademiens handlingar. Science; Botany. 18 SVEN LOVEN, ECHINOLOGICA. soliition of continuity intervened between this circle and tlie next, the plates of whioh, the second ones and the following, M^ere oomprehended in the fixed portion of the corona. The third, fourth and fifth, when completed, were regnlarly hexa- gonal, and higher than they were broad; the second, the lowest pair, was, as yet alone, somewhat defornied and depressed. It was preparing to separate from the following-, to descend and to begin forming the flexible continnation of the corona, the meinbrana bnccalis . The colnnins of the anibnlacra will grow rapidly, nevv plates will form continnally at their abo-. Buocal i)art of an aiiibulaenun in Cidaris papillata. ral terminations, and by virtne of the vis a tergo bronght on by their angmenting nnmber and enlargement, and the re- sistance afForded by the radial of the calyx, the plates will come to change their places relatively to the interradials, and glide gradnally downward between these. towards the stomal region. Whenever. in this manner, one of a pair of plates attains tlie limit of the fixed part of the corona, the solution of continnit}^ is repeated, the snture which marks its adhesion to the next following plate is seen to open, and the plate to be set free, and to pass, as if discharged thr(^ngh the outlet. 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 Kungl. Svenska vetenskapsakademien. Stockholm : K. Svenska vetenskaps-akademien
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Keywords: ., bookcentury1800, bookdecad, booksubjectbotany, booksubjectscience
