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Biol Bull 63: 74-80. (August 1932)
© 1932 Marine Biological Laboratory
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CYCLOTRICHIUM MEUNIERI SP. NOV. (PROTOZOA, CILIATA); CAUSE OF RED WATER IN THE GULF OF MAINE

PHILIP B. A. POWERS 1

1 ZOÖLOGICAL LABORATORY, UNIVERSITY OF PENNSYLVANIA

1. Red water in Frenchman Bay is caused by the swarming of a small red ciliate, Cyclotrichium meunieri sp. nov.

2. This organism is ovoid, about 33 µ long, and has in a wide depression about its middle a band of fine cilia. It has been suggested that compound cilia may be present in the living animals. The endoplasm is well shielded by a peripheral series of chromatophore platelets, each with an associated pyrenoid body.

3. Six chromosomes were observed in each of the daughter micronuclei in an early telophase of division.






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Copyright © 1932 by the Marine Biological Laboratory.