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The Visual Pigments of Some Deep-Sea Elasmobranchs

Published online by Cambridge University Press:  11 May 2009

E. J. Denton
Affiliation:
The Plymouth Laboratory
T. I. Shaw
Affiliation:
The Plymouth Laboratory

Extract

The retinae of three species of deep-sea shark, Centrophorus squamosus, Centroscymnus coelolepis and Deania calcea, have been studied. All had goldencoloured photosensitive pigments, similar to those of deep-sea teleosts. The absorption maxima for the unbleached pigments lay between 472 and 484 m/n. The retina of the hake (Merluccius merluccius) was studied for comparison; its retinal pigment absorbed maximally at 495-5 mix. Some observations on the retinae of the moray eel (Muraena helena) and the Atlantic salmon (Salmo salar) are also described.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1963

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