. Elements of zoölogy : a textbook. Zoology. other small jelly- fish e s, and other small marine ani- mals and thus gives abundant evidence that it is a real mem- ber of the animal kingdom. The jelly- fishes of this sort are abundant in the spring. In the mid- dle of summer they lay their eggs, and perish. But the eggs do not hatch into inedusse like the parent ; but each egg hatches a little hydroid which is first free, then afterwards becomes attached to a shell, Sea-Weed, Or Stone, Hydroid Jelly-fish, Coryne (Sarsia) mirabilis, Agassiz. T f ,i • 1'ffl A' a cluster of hydroids growing on sea
. Elements of zoölogy : a textbook. Zoology. other small jelly- fish e s, and other small marine ani- mals and thus gives abundant evidence that it is a real mem- ber of the animal kingdom. The jelly- fishes of this sort are abundant in the spring. In the mid- dle of summer they lay their eggs, and perish. But the eggs do not hatch into inedusse like the parent ; but each egg hatches a little hydroid which is first free, then afterwards becomes attached to a shell, Sea-Weed, Or Stone, Hydroid Jelly-fish, Coryne (Sarsia) mirabilis, Agassiz. T f ,i • 1'ffl A' a cluster of hydroids growing on sea-weed; Q, a 3 single individual enlarged—a and 6 just ready to drop hydroid Others °ff an(3 become free Jelly-fishes C- branch till a little community of hydroids has grown up, as in Fig. 694A. And here again we have an illustration of Partheno- genesis (page 329). In some kinds of Hydroids, as Tubularia (Fig. 695), there is a wreath of coronal tentacles, and a projecting part called a proboscis, and the medusae grow in clusters from just above the coronal 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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