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Biol Bull 69: 136-142. (August 1935)
© 1935 Marine Biological Laboratory
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OBSERVATIONS ON THE FEEDING OF DIFFLUGIA, PONTIGULASIA AND LESQUEREUSIA

A. B. STUMP 1

1 From the Miller School of Biology, University of Virginia

1. Lesquereusia spiralis, Pontigulasia vas, Difflugia constricta, and D. lobostoma have been observed feeding on filamentous green algæ in a manner similar to that of Vampyrella.

2. The algal cells are entered by tearing or ripping the cell wall after it has been softened or partially digested.

3. Apparently there is no sucking action as for V ampyrella; the cell contents are removed by cytoplasmic streaming.

4. The entire process of opening the cell and removing the contents is completed in an hour.

5. Very little difference was noted in the feeding action of the four Testacea observed.






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Copyright © 1935 by the Marine Biological Laboratory.