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Biol Bull 175: 274-283. (October 1988)
© 1988 Marine Biological Laboratory
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Visual Spectral Sensitivity of the Bioluminescent Deep-sea Mysid, Gnathophausia ingens

TAMARA M. FRANK 1 and JAMES F. CASE 1

1 Department of Biological Sciences and Marine Science Institute, University of California, Santa Barbara, California 93106

The spectral sensitivity of the deep-sea mysid, Gnathophausia ingens(Family Lophogastridae), was measured by electroretinography on intact specimens. High sensitivity to orange light was found. This was an unexpected result for a species whose adult members are never found above 400 m. Results of chromatic adaptation and silent substitution experiments were not compatible with either a one pigment or dual pigment visual system, making this one of the more unusual visual systems ever described.

Submitted on December 24, 1987
Accepted on July 28, 1988






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Copyright © 1988 by the Marine Biological Laboratory.