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Biol Bull 101: 157-161. (October 1951)
© 1951 Marine Biological Laboratory
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THE EFFECT OF PARROT FISH THYROID GLAND ON METAMORPHOSIS IN FROG TADPOLES

SAMUEL A. MATTHEWS 1 and FRANK ASH 1

1 Thompson Biological Laboratory, Williams College, Williamstown, Mass.

The parrot fish thyroid markedly accelerates metamorphosis when fed to tadpoles of Rana clamitans. The thyroid of a parrot fish which had been treated daily for several days with propylthiouracil had no effect on metamorphosis.






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Copyright © 1951 by the Marine Biological Laboratory.