. Comparative zoology, structural and systematic : for use in schools and colleges. Zoology; Anatomy, Comparative; Physiology, Comparative. fringed with tentacles, furnished with stinging thread- cells. The radiating parts are in multiples of four. Around the rim are minute -colored spots, the " eye - ; In fine weather, these " sea - blubbers " are seen floating on the sea, mouth down- ward, moving about by flapping their sides, like the opening and shutting of an umbrella, with great regular- ity. They are frequently phospho- rescent when disturbed. Some are quite s
. Comparative zoology, structural and systematic : for use in schools and colleges. Zoology; Anatomy, Comparative; Physiology, Comparative. fringed with tentacles, furnished with stinging thread- cells. The radiating parts are in multiples of four. Around the rim are minute -colored spots, the " eye - ; In fine weather, these " sea - blubbers " are seen floating on the sea, mouth down- ward, moving about by flapping their sides, like the opening and shutting of an umbrella, with great regular- ity. They are frequently phospho- rescent when disturbed. Some are quite small, resembling little glass bells; the common Aurelia is over a foot in diameter when full-grown; Medusa, seen in while the Cyanea, the giant among P'ofi,e aud ^ ^el?w' * 0 ° showing central polypite, Jelly-fishes, Sometimes measures eight radiating and marginal feet in diameter, with tentacles one hundred feet long. When dried, nothing is left but a film of membrane weighing only a few grains. There are two representative types: the Lucemaria, the Umbrella-acaleph, having a short pedicel on the back . 009, for attachment: tentacles disposed in eight groups around the margin, the eight points alternating with the four partitions of the body-cavity and Fig. 19T.—Lucemaria auricula attached to a the four COl'IierS of the piece of sea-weed; natural size. The one on , -, * the right is abnormal, having a ninth tuft of HIOUtil J not leSS thai! tentacles* eight radiating canals, and no membranous veil. The common species on the Atlantic shore, generally found attached to eel-grass, is an inch in diameter, of a green color. Discophora, the ordi- nary Jelly-fish, is free and oceanic. It differs from the Lucemaria in its usually larger size and solid disk, four. 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 origina
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1883
