< Page:Popular Science Monthly Volume 33.djvu
This page has been proofread, but needs to be validated.
743
THE GROWTH OF JELLY-FISHES.
the tentacles, as shown at e in Fig. 13; and, folding down toward the mouth, gives rise to a swim-bell and bell-cavity. The larva is then set free, and it escapes into the water as a young jelly-fish (Fig. 14), with an enormous proboscis (d), a relic of its parasitic
Fig. 12.—A. colony of three young parasitic larvæ of Cnnina.
Fig. 13.—An older colony, consisting of six Hydras, some of which have begun to become transformed into Medusæ.
Fig. 13.—An older colony, consisting of six Hydras, some of which have begun to become transformed into Medusæ.
This article is issued from
Wikisource.
The text is licensed under Creative
Commons - Attribution - Sharealike.
Additional terms may apply for the media files.