. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 128 J. PAUL VISSCHER. at a distance at least equal to their own length. Sometimes as many as two or three of these ciliates were seen to gather around and attack a single rotifer. In these attacks the dilepti usually failed to capture the rotifers. Only in one instance was a rotifer actually observed to be captured and eaten. Although the feeding process rarely culminated successfully, this experiment afforded observations which are very instructive, as the following indicate. In these observations each dileptus was continuo


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 128 J. PAUL VISSCHER. at a distance at least equal to their own length. Sometimes as many as two or three of these ciliates were seen to gather around and attack a single rotifer. In these attacks the dilepti usually failed to capture the rotifers. Only in one instance was a rotifer actually observed to be captured and eaten. Although the feeding process rarely culminated successfully, this experiment afforded observations which are very instructive, as the following indicate. In these observations each dileptus was continuously swinging its proboscis back and forth, and at the same time revolving on its longitudinal axis. Thus it struck the rotifers, now with the aboral side, now with the oral side of the proboscis, and the corresponding differences in the reactions of the rotifers were most striking. The rotifer in question is one which attaches itself quite securely to the wall of the dish. It also elongates and contracts from time to time without changing its location. When the aboral side 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology