. Elements of zoölogy : a textbook. Zoology. 460 RA 1)1 ATA : FIG. 691. iner thej lay their eggs; and in the autumn they per- ish. At length the eggs hatch, and the little planulce, as the newly-hatched Jelly-fishes are called, swim about in the water by means of little appendages calle/,1 vibratile cilia. Soon each becomes attached to a rock, shell, or sea- weed, and is then called Scyphistownct (Fig. 691). Then the body begins to divide by horizontal constrictions, and soon ap- pears as in Figs. 692, 693, and is then Scyphistoma called Strobila. At length the segments become more
. Elements of zoölogy : a textbook. Zoology. 460 RA 1)1 ATA : FIG. 691. iner thej lay their eggs; and in the autumn they per- ish. At length the eggs hatch, and the little planulce, as the newly-hatched Jelly-fishes are called, swim about in the water by means of little appendages calle/,1 vibratile cilia. Soon each becomes attached to a rock, shell, or sea- weed, and is then called Scyphistownct (Fig. 691). Then the body begins to divide by horizontal constrictions, and soon ap- pears as in Figs. 692, 693, and is then Scyphistoma called Strobila. At length the segments become more and more separated, and the upper- most one drops off; then the next one ; then the next, and so on, till each in turn has separated from the one be- low itself. dula, Per. and LeS. Magnified about seven diameters. FIG. 692. FIG. 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 Tenney, Sanborn, 1827-1877. New York : Scribner
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