. Comparative anatomy and physiology. Chap, xii.] NFRWUS SYSTEM OF CCELENTERATA. 395 sen§e hair, which, acted on by movements in the water, and communicating with the body of the cell, is able to bring the animal into relation with the outer world. In the sea-anemones the basal processes of the cells have been observed to be continued into a layer of. Fig. 167.—Part of the submuscular plerus of Aurelia aurita, showing gauglionic cells. (After Schafer.) fibres, whJT-h are to all appearance^ nervous in na±iira x Well-developed ffganglionic cells are to be found scattered in the layer of nervous
. Comparative anatomy and physiology. Chap, xii.] NFRWUS SYSTEM OF CCELENTERATA. 395 sen§e hair, which, acted on by movements in the water, and communicating with the body of the cell, is able to bring the animal into relation with the outer world. In the sea-anemones the basal processes of the cells have been observed to be continued into a layer of. Fig. 167.—Part of the submuscular plerus of Aurelia aurita, showing gauglionic cells. (After Schafer.) fibres, whJT-h are to all appearance^ nervous in na±iira x Well-developed ffganglionic cells are to be found scattered in the layer of nervous fibres which sur- rounds the mouth. While in Aurelia and other Acraspedote Me- dusse the central part of the nervous system consists of isolator! ganglia^ ordinarily eight in number, the * Craspedote Medusae, or those in which the edge of the bell is provided with a vehim, have a more definite central system; the epithelial coverings of. 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 Bell, F. J. (Francis Jeffrey), 1855-1924. London, Cassell
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