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Biol Bull 130: 106-117. (February 1966)
© 1966 Marine Biological Laboratory
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A COMPARATIVE STUDY ON THE CILIARY FEEDING MECHANISMS OF ANADARA SPECIES FROM DIFFERENT HABITATS

C. F. LIM 1

1 Dept. of Zoology, University of Singapore, Singapore

1. The ciliary feeding mechanisms of a rocky- (A. antiquata), sandy- (A. anomala), and muddy-( A. cuneata) habitat species of Anadara are observed.

2. Adaptive differences are found for the three species in their inhalant/exhalant apertures, structures and ciliary surfaces associated with feeding.

3. Some primitive and specialized features of the three species in relation to their feeding mechanisms are discussed.

4. Observations of the ciliary feeding currents were also made on Anadara granosa.

S. The ciliary tract on the ventral margin of the ctenidium is directed posteriorly in A. granosa, contrary to previous observation.






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Copyright © 1966 by the Marine Biological Laboratory.