Marvels of pond-life; or, A year's microscopic recreations among the polyps, infusoria, rotifers, water-bears and polyzoa (1871)
Slack, Henry J. (Henry James), 1818-1896 · London, Groombridge · leaf 39
nished with a retractile disk or cover, on whichthe cilia are arranged. Their stalks are not simplestems, but are hollow tubes, which in the genus Vorti-cella are furnished with a muscular band, by whoseagency the movements are principally made. Some of the Vorticellids will be observed to… … Encysted Yorticella, showing the ohliteration of special organs bythe advancement of the process.—Pritchard. These changes are exhibited in the annexed cuts,which are copied from known authorities. By carefulobservation of the bodies of Vorticellids, a contractilevesicle may be observed, which…
Microscopy · Freshwater animals -- England · Pond animals
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